The best way to test this (an interesting experiment for your
thesis) is to
try a positive expectation game. Have 10 marbles 6 black
(winners) 4 white
(losers); randomly select and return the marbles 100 times. Have
room full
of people trying different money management systems starting with
a
hypothetical $100,000; winning or loosing what they risk for each
"trade".
(Or record the sequence and do it yourself). The results will
range from 0
to Millions. Try a 70% game. The results will also range from 0
to millions.
This is why the worlds best and largest traders have very simple
systems but
sophisticated MM rules.
The best definition I've come across for MM is "how
many". Your system
should tell you when and where to get out, only after these
decisions have
been made should you then use your MM system to decide HOW MANY,
but the two
decisions should not over-lap.
You are right to try antimartingale systems, increase with wins,
decrease
wth losses. The exact nature of the system determines the best
formula. With
wide stops like an n-day breakout, something like 2% is a good
starting point, however
this would be suicidal with close stops. A volatility based
formula would
stop be better to stop you getting too carried away.
> I also tried to increase/decrease position size according to
the
>dependency among the last x trading days of a trade. When
there is a
>Win-Lose-Win-Lose pattern I
increase-decrease-increase-decrease, when
>there is a Win-Win-Win-Win pattern I increase continuously
(e.g. every 5th
>day). Also not very satisfactory.
>Am I on the right track but on the wrong branch?
Close.
Example 1: If your MM rules are to risk 2% of a $100,000 account
($2,000)
Your system stop is $1000 away so you take 2 positions. The
market moves up
and you have a $4,000 profit but your system exit has not moved.
You are
now risking giving back 4% ($4,000) If you want to keep a
constant 2% risk
you may consider reducing risk back to 2% and just selling one at
the
market.
Example 2: The same as above except your system has a reason (a
technical
one, not a MM one), to move up the exit stop. The new stop is
risking only
1% now ($1,000) so you could now double your position size a buy
two more at
the market. With this MM system you could increase dramatically
your
position size while never risking more than the original 2% to
the market.
Example 2 is the basis of the very successful turtle
trading
system along
with a very simple n-day channel breakout entry and exit system.
There are
many variations on this i.e. you could risk say 1% for initial
positions and
4% marked to market or MARKET HEAT as it's sometimes called.
The idea is to limit risk and maximise profits by letting your
tested
technical system give you a reason to enter and exit the market,
and MM to
say "HOW MANY" but the two are quite separate
decisions.
Andrew Dykes at "Kerry O'Connor" koad@ihug.co.nz
Money Management/Expectancy/Expected Value:
>1) I tried a very close system stop, e.g. a $500 stop while
Volatility (in
>terms of a 15 day Average True Range) was higher than $500 at
least in 2/5
>of the cases. - I was surprised as the results were not too
bad, as I could
>"pack" more Nr. of Contracts with a close stops
which obviously paid for
>the higher number of stopped out positions.
>Do you consider such close stops as hazardious?
As long as your realise that this $500 stop is not a money
management rule
but a trading rule. If you wish to include it in your system then
by all
means test it and see what it does to your expectancy (!) ***. A
MM rule does not
alter your expectancy therefore is not at trading rule.
>
>2) What I was thinking about is to have a recursive money
management system.
>That means I just look at what results a certain system
produces, e.g. an
>average loss of $1000, an an average profit of $3000 and has
tendency to win
>big after a loosing streak and vice versa (lose bigger after
a winning streak).
I've not found this to be true to any meaningful extent. I would
caution against trying use so called "streaks" to
determine outcome. This is the very psychological bias that
allows casinos to prosper. If you know the expectancy (!) *** of
your system then every trade has the same expectancy going in,
the actual result of any one trade is close to random. Also I've
found the only way to have the "real world" trading to
match up to your hypothetical expectancy is to trade multiple
markets and use many years of data in your testing.
>Any ideas how to build the average loss/average profit into a
money
>management plan? - Unfortunately I never played Black Jack,
otherwise I
>would maybe have an idea.
>To know to suffer a loss in 60% of the time, and to have a
profit in
>40% of the time is advantage (Expected Value = 60% x -$1000 +
40% x $3000 =
>$600), but I am not quite sure how to implement it into a
valid method.
To see how good a system is I like to then divide the expected
value $600 by
the average loss ie $600/$600 = 1 Which means your expectancy is
$1.00 per
dollar risked. This is a great way to compare different systems.
If the system has been tested properly with adequate slippage an
expectancy
of .5 is tradeable and .7 is a good one. An expectancy of 1.0
will make you
rich!
Here is one plan, however the unfortunate truth is only with a
large account
can one truly use it or any effective MM plan,
Firstly I use my gambling formulas to determine maximum bet size
for
greatest return (unfortunately this will result in large
drawdowns and you
have to be psychologically prepared to trade through these.)
I use the Kelly Criterion. Kelly % = A-[(1-A)/B]
{A is the % of winning trades in decimal format (reliability of
system) and
B is the average profitable trade in $ divided by the average
losing trade in $
e.g. a coin flip game: the reliability of the system is 0.5. In
this game you
make twice what you risk when you win. Thus B = 2. Therefore the
amount of
remaining equity you should risk to produce the maximum rate of
return is
Now with this information I would take 80% of Kelly to be on the
conservative side (20%) I then work out how many different
markets I will be
trading i.e. 10. So I would allocate 2% of my trading equity per
position.
If in this example my account is $100,000. For each new position
I would
subtract my initial entry price from my exit price then determine
"How
many". I might be able to afford 4 corn (if the amount
risked was $500 or
less) only 1 Swiss Franc and maybe have to forgo an S&P if
the initial stop
was further away than $2000.
If I have on 10 positions and all of them go against me on one
day I'm
still within the Kelly Criterion. But I know the "how
many" has not changed
my expectancy (!) *** in any way.
>Is this what I call a recursive money management system? You
decide AFTER a
>trade what (rather 'how many') to risk next? This obviously
requires
>dependency between the trades. But I also read very often one
should see
>each trade independently, what a contradiction.
No, I have never seen any evidence of dependency between trades.
A well
thought out system should have the entry and exit point fixed
before the
trade is entered. The difference is your risk. The money
management
discussion "how many" is then based on your total
account size.
>The problem I had (to transfer the experiences from the game
to the futures
>markets) was a) that I did not know if I should consider
daily changes (daily
settlement) as a streak or the last x closed out trades (which
could be weeks away).
There are 3 basic approaches:
Core Equity Method: to use only the value of your account from
closed out
trades to determine positions size, less the amount risked on
each open position.
Total Equity Method: the cash in your account as above, plus the
value of
any open positions.
Reduced Total Equity Method: A combination of the two. It's like
the core equity method but you add back open profits if the stop
has been moved into profit.
>b) that I often increased risk when the market was already
lost steam, so
>big drawdowns were the result.
The only way to avoid this is to trade many un-correlated markets
at once.
The selection of your portfolio is crucial. (And not an easy task
by any means).
>What do you mean by 2%? - Initial risk?
Yes 2-3% of your account size for the initial risk and maybe
double that for market heat (Marked to market on the close).
However this market heat should not mean moving your stops (this
would change the expectancy (!) *** and would mean you are
trading a different system) but by varying position size. This is
of course the luxury of a large account and is not usually
possible for the individual trader staring out. In fact it
doesn't necessarily increase overall profitability but should
produce a smoother equity curve, and cause less psychological
problems.
I can't recommend highly enough the "Special Report on Money
Management" by Van Tharp (I mentioned it in my last e-mail)
which covers all of the above in great detail (different
position sizing methods, different models of money management).
>> For each new position I would subtract my initial entry
price from my
>> exitprice then determine "How many".
>You are probably talking about the stop loss (exit) point
here or do you use target exits
>(at a profit)?
Yes stop loss exits. I never use profit targets. I always follow
the basic cut losses short, let profits run. The reason this
works is in the nature of distribution of the trades. There is
not the classic bell shaped curve but one with "fat
tails" i.e. there are more large moves than would be
expected if they were random. By having an initial stop to
prevent the unusually large adverse moves, and a trailing stop to
attempt to capture as much of the extraordinary large moves, it
is possible to profit in the long run.
As a result all profitable systems I've seen are trend following
and have less than 50% win to loss ratios.
>Do you try to be in different markets all the time (i) or is
it possible
>that you trade only one at the time (ii)?
When I say I'm in the market this includes buy stop orders above
the market or sell order below the market. I then
"trade" about 35 market world-wide and would have open
positions in about 60% of them at any one time.
It's all about having a positive expectancy then applying it as
much as possible. As a blackjack player I used a system which had
the odds of one player coming out ahead over a weekend to 2 out
of 3. Two players together could, by combining banks effectively
double the number of days and the probability of winning would be
3 out of 4. By the time we had a dozen players we won every day!
Trading is the same, the more markets the better. I would even
add a market
if I knew it was less profitable than the others (of corse this
is impossible to know in advance) because the smoother my equity
curve the higher my bet size can be.
>If (i), you must have a very 'easy-going' Entry Signal, which
gets you in
>very often, otherwise you couldn't be in, let's say, 5
markets simultaneously.
As I said previously having an order in the market is the same to
me as being in it. But don't be too worried about entries, it's a
common beginners fallacy. It's the same as those
"Lotto" type lotteries where you get to pick your own
numbers (birthdays, lucky numbers etc..) Obviously as an educated
Man you know this makes no difference to the outcome.
Entries are the same. If you don't believe me try using all the
well known
entry techniques, Channel breakout, moving average cross-overs,
volatility entry etc and if they are profitable after 5,10,20
days few are even as good as random entry.
They seem important because the decision when to get in is the
last time a trader is in control. Exits are at the whim of the
market. Only money management makes any real difference on your
profitability.
>>Is this what I call a recursive money management system?
You decide AFTER a
>>trade what (rather 'how many') to risk next? This
obviously requires
>>dependency between the trades. But I also read very often
one should see
>>each trade independently, what a contradiction.
I know of no dependency between my trades. "How many"
is a function of
account size and the percentage you are willing to risk.
>Do you measure correlation among markets with the LN (Natural
Log) of price
>changes? What I even find difficult here is how do the
programming efficiently (I do
>all the calculations with MS Excel): I must have all the data
(of all commodities involved)
>open to calculate a correlation matrix in a certain time
window. This eats up all my
>memory... Maybe I should calculate the correlations
beforehand and write the
>results into a separate file where it is read from during
simulation? Danger is to 'lose >contact to reality' here.
Which program do you use to run your calculations?
None of the above. I don't consider correlation among markets to
be a mathematically problem, rather a common sense one. For
example I'm currently short Swiss Franc Futures so I don't have a
position in D-Marks. Just from looking at the charts of these
markets they obviously move in a similar fashion. From experience
I know to sell the weaker contract and buy the stronger. Grains
and precious metals obviously have some correlation as do
bonds and Euro's. S&P's have a negative correlation to bonds
but not always. It is just a matter of paring down position size
when you feel you may be over exposed to a particular sector. I
know of no formular which improves on experience in this matter.
I know this is not too helpful to an academic study of trading
however the nature of market a forever changing. Oil and Gold
moved together in 70's but by the 80's they were quite different.
The point to remember when testing a trading system, is that
testing is not about accuracy or exactness. We only have last
years data to test on when we really need next years! It would be
similar to trying to find out who would win the next Austrian
Elections by polling the French, i.e the wrong data pool.
To quote William Eckhart "The delicate tests that
statisticians use to squeeze significance out of marginal data
have no place in trading. We need blunt statistical instruments,
robust techniques. I.e a robust statistical estimator is one that
is not perturbed by mistaken assumptions about the nature of the
distribution."
>I have heard about the fact that moving stops would change
the expectancy and varying
>position size will not. But what is the (mathematical)
explanation of this?
>I do not really understand why a money management rule does
not alter my
>expectancy.
Your expectancy is per dollar risked. A 2-1 expectancy game does
not change
if the bet size changes.
>Is it correct that any additional rule which alters my
expectancy (up or
>down) is dangerous and should be avoided?
It is important not to have too many degrees of freedom. Do not
use rules which would only affect a very rare occurrence. If I
had to choose between two otherwise equal systems I would go for
the one with the lessor number of imputs or degrees of freedom.
This would be the one that would be less "curve fitted"
and more likely to work in the future.
>I know the Kelly formula for quite a while but never tested
it.
The kelly formula should be use only for total portfolio risk.
Assuming the worse case scenario and all positions act as one and
move against you at the same time. It is much too large for an
individual position.
>In practical terms, that means you decrease position size
during the life of a trade instead
>of moving your stops closer, right?
Yes, although this depends on the system. The only way to know is
to test all possible
variations. Remember trading is a much psychological as
mathematical. Over all profitability is irrelevant if the trader
cannot stomach the drawdowns.
So changing position size during the life of a trade is more to
do with keeping a constant risk but doesn't necessarily increase
profitability. If your exits are particularly clever it may be
better to keep the bet size constant.
Fixed Ratio money management technique
(Ryan Jones' company):
As you stated, Optimal F is the quickest way mathematically to
increase your
account balance. As you also noted, it comes at the expense of
large drawdowns.
Additionally, better systems will typically have larger Opt. F
drawdowns because
better systems yield a higher optimal fraction, such that when a
loss does occur,
you have a large amount of your account at risk.
Ryan's "Fixed Ratio" money management formula looks to
maintain the drawdown of an
account at a constant percentage level. In other words you
increase or decrease
the number of contracts traded in order to keep your drawdown at
roughly the same
percentage level. This theoretically makes the account easier to
trade because you
don't have the wild equity swings associated with optimal f. This
money management
approach boosts account returns well above single contract
trading, but still
falls short of optimal f levels. It's just at matter of whether
or not you could
withstand (both psychologically and in regards to account
capital) a 60% or 90%
drawdown that is quite typical of optimal f.
I've purchased and worked with Performance I (Ryan Jones'
software package for
fixed ratio). At $1200, the software leaves something to be
desired (pretty much a
glorified spreadsheet) although a new version was just released
(free to current
owners). Basically what you're paying for is the concept, which
is fully
disclosed. Bottom line: Fixed Ratio is unique, but not stellar. I
believe if you
study Vince's material (opt. f) and Kelly's techniques and fixed
fractional
trading and get an understanding of how money management works,
you could probably
come up with an approach that works just as well as Fixed Ratio.
If you're looking
for someplace to spend money, however, this is as good a place as
any!
Never risk more than one days range. In
general, it is preferable to exit in the direction that the
market is going I believe. I am also interested in this type of
discussion, because I have a great entry technique and am more
interested now in a great exit technique. Most trading systems
expound on great entries but ignore how to have great exits. Many
Gurus recommend scaling out of trades in order to cut down risk.
Finally, when the risk is greatly reduced and some profits are
protected, a final contract is left to go for the big long home
run. The first few contracts are taken off at targets, and the
final one is let run with a loosely trailing stop.
For small accounts, a profit target is probably preferable for
short term systems and a trailing stop is preferable for long
term systems. The system that I am trading allows your profits to
run for one day, and then you nail them the next day. If the
market keeps going in your
favor, you reenter. The system skips a lot of profit between
where you took profits and reenter. I am thinking about how to
fill the gap.
Money Management-Van Tharp:
Long trades have a high positive expectancy but make you money
only 25% of the time. When the market starts up trending (winning
streak on the long side), the probability of it continuing is
about 70%. A winning trade could last 15 days or more, and (if
you risk the maximum allowed) you could double your equity each
day. Thus, a winning trade that was allowed to double each day
for 15 days could pay more than 16,000 to 1. However, if it
didn't go 16 days, you would lose
all of your profits. For more
information on expectancy or probabilities, see the questions and
answers below and Dr. Tharp's comments on money management.
Short trades have a negative expectancy but they make money for
you 75% of the time. However, you could loose up to 20 times the
amount you risked. Thus, any time you risk more than 5% of your
equity on the short side you risk bankruptcy. A losing trade only
lasts one day, but a winning trade can go as long as 15 days and
as short as two days. The art form to winning this game is to be
able to capture as much profit as possible from a winning trade
while, as the same time, not letting the profit get away. For
example, if a winning trade went 15 days, you could make as much
as 16,000 times your initial risk if you continually risked the
maximum. But, if you continually risk as much as possible on a
winning trade, you will eventually lose all of your profits.
All trades are not necessarily 1:1. The market can move in your
favor or against you at 1:1, 2:1, 5:1, and even as much as 20:1
on the short side. There are occasional 2:1 losses on the long
side.
During the course of play, each player has a listing of the last
10 trades they placed. Here is how to interpret some of the
columns:
Risk - the amount risked during the trade
L/S - indicates whether the player traded on the Long side or the
Short side
Mkt - indicates the market movement:
Up = a win on the long side or a loss on the short side
Down = a loss on the long side or a win on the short side
Chg - indicates the amount the market moved
Close - your closing equity (Equity + Amount)
YOUR LAST 10 TRADES
Date Equity Item Traded Risk L/S Mkt Chg Amount Close
06/12/1996 50000 Ethiopean Rice 00500 L DN 01 -00500 49500
06/25/1996 49500 ABC Shoes 00880 L DN 01 -00880 48620
07/03/1996 48620 Monitors Inc 00200 L UP 02 +00400 49020
08/28/1996 49020 Monitors Inc 00200 S UP 01 -00200 48820
09/01/1996 48820 Manual Trans 00200 S DN 01 +00200 49020
09/04/1996 49020 Cups Mugs Inc 01000 L DN 02 -02000 47020
Thus, if you risked $1000 on the long side, as it did with
"Cups Mugs Inc." and the market moved down by 2 times,
then you would end up losing $2000.
If a player elects to "go short" and the market enters
a long winning trade, you won't be permitted to participate
(except by going short) until a loss occurs and a new item is
presented. The reason for this is that we are simulating the
whole issue of allowing profits to run, but not letting them get
away from you. By going short, you have elected not to
participate in that particular trade. Remember that a winning
long trade can last many
days. Thus, when you go short, you may be locked out of the game
(except to go short again) for a number of days.
Only one stock or commodity is traded per day. During a winning
streak, the stock or commodity being traded remains the same from
one day to the next. Once a loss occurs, a new stock or commodity
is offered. During the winning streak, you can risk a maximum of
your initial trade on that item plus any profits you have
realized since the item was offered. If you risk $0 on the long
side, you will not be able to participate in a winning trade
because the amount you can risk is limited to $0 throughout the
trade.
Players that are unable to return to the Virtual Trading Exchange
daily are letting their profits ride (once they have some) just
like in the real markets. However, we do have an error in the
logic of the game in that program only lets your profits ride
during the second day of your participation in a winning streak,
but not after that. In fact, if you let your profits ride, by not
participating, you risk getting the results of the trade on the
day you return (instead of the next day). We will not fix errors
of this type, so you are on your own if you try it. You need to
take this into consideration when considering your money
management prior to placing your last trade, and then place the
trade accordingly. You can also decide to place a
"stop" in the
market by entering a "0" as your last trade,
effectively preserving your capital.
There may be circumstances where you will notice two trades
listed on a single day. This tells you that the exchange
automatically executed your trade at the end of a winning streak
(which would have occurred during one of the days which you were
not participating but had a trade on) before switching to a new
item. By not participating, you were letting your profits ride.
This is the only circumstance which will cause two trades to be
listed on the same day.
When a winning trade starts, it may last as long as a week or
two. It is considered to be just one trade. If you elected to
take it on the short side or risk $0 on the long side, you have
essentially decided not to participate in that trade on the long
side. However, you can make more short entries on that trade -
should you decide that the winning streak should be over. Your
risk on the short side is only 1:1, but remember that a winning
trade can last a long time.
There is a lot of uncertainty in the markets, just like there is
a lot of uncertainty in the game. In other instructions, we say
that certain things will probably happen. However, nothing is
certain. And if the unexpected happens, it is your problem. We
will not resolve such problems in your favor. It's one of the
hazards of trading.
How to Play the Simulation:
The best way to describe how to play the simulation is to take
you through a series of trades to see what will happen. The names
of the stocks or commodities used in this example are purely
fictitious - any resemblance to actual companies is purely
coincidental.
Let's say that the first trade is MicroLoft, Inc. On day 1 you
place a trade for $1,000 on the long side. The next day, you look
to see what happened in the market and find that the
market moved against you at 1:1 and you've lost the $1,000 (if
you had gone on the short side, you would have won).
TIP: Each day, the market switches instruments unless there is a
profit on the long side.
Now, on day 2 everyone is trading on Gold. You place a trade for
$1,000 on the long side. The next day, you look to see what
happened in the market and find that the market moved against you
again, this time at 2:1 and you've lost the $2,000 (if you had
gone on the short side, you would have won again).
On day 3, everyone is trading Silver. Again, you place a trade
for $1,000 on the long side. The next day, you look to see what
happened in the market and find that the market moved against you
again, at 1:1 and you've lost another $1,000.
Your new equity is now $46,000. If you had gone on the short side
for all three trades, your new equity would have been $54,000.
On day 4, everyone is trading WXYZ Corp. Again, you place a trade
for $1,000 on the long side. The next day, you look to see what
happened in the market and find that the market moved in your
favor at 1:1, and you've now won $1,000. However, if you had
decided to go short on day 4, you would have lost at 5:1, or
$5,000, and would not be permitted to trade on the long side
until a new instrument is offered.
___________________________________
TIP: When there is a win on the long side, the short side can lose
anything from 1:1 to 20:1. Once the market enters an up
trend, it enters a new mode of play. WXYZ Corp. is now trending
up. It will remain the instrument offered as long as it remains
in the up trend
(i.e.: until the first loss). Subsequent, days are just a test
for you (those of you who've made money on the long side) to be
able to let you profits run, but also lock in some of the profits
by raising your stop (i.e., not risking the maximum).
On day 5, WXYZ Corp is still being traded. Your decision now is
whether to risk all your winnings or to raise your stops. You
decide to trade $2,000 on the long side. The next day you look
and find the market is still up trending and you have won at 1:1,
or $2,000. You have now made $3,000 on this trade!
On day 6, WXYZ Corp is still being traded. You decide to transfer
$500 into your equity by only trading $2,500 today. The next day,
you look to see what happened in the market and find that it
moved in your favor, and you won $2,500.
Your new equity is now $51,500 with $5,000 to risk.
On day 7, WXYZ Corp is still being traded. You decide to move an
additional $1000 into your equity account by only trading $4,000
today. The next day, you look to see what happened in the market
and find that it moved in your favor, and you won $4,000.
Your new equity is now $55,500 with $8,000 to risk.
On day 8, WXYZ Corp is still being traded. You decide to only
risk $2,000 on the trade. The next day, you look to see what
happened in the market and find that it moved against you,
at 1:1. This trade is now concluded and you have $53,500 in
equity. You've made a total of $7,500 on WXYZ.
On day 9, Arizona Oceanfronts is being traded and the entire
process begins again.
It pays to cut your losses short and to let your profits run. You
do this by implementing good money management techniques. Our
simulation has been designed to provide you interactive feedback
during the course of play. The simulator has been programmed with
a set of rules. If it senses that you are trading in a highly
risky manner, you will receive
an instructional email message to help you out.
___________________________________
Questions & Answers:
I don't have access to the internet over the weekends. Why does
the simulation run continuously?
The simulation runs continuously by design. During the design
phase, we considered the problem that some people that may only
have internet access at their office during "regular
business hours". However, our simulation is being played by
people all over the world in various time zones, thus it was
impossible for us to define what "regular business
hours" would be for each player.
Furthermore, the goal of the Virtual Trading Exchange is to teach
people money management skills. People need to learn to
consciously consider their money management strategies each time
they place a trade. Thus, if a member is unable to participate
over a weekend, holiday, business trip or any other time, then
they need to consider this when deciding how much to risk on the
last day that they are able to participate. Their money
management should tell them to either reduce the amount they are
willing to risk on the trade or to place their trade on hold by
placing a stop in the market (entering a "0") as their
last trade.
This game seems like gambling, not trading, to me. You'll even
lose on long trades most of the time. What am I suppose to learn?
It's not gambling because, unlike the casinos, the game has been
programmed to give you a positive expectancy if you go long on
every trade. It is actually a good simulation of long-term
position trading. The losses only last a day and you've got to
let your profits run. You also have to learn to make sure that
your profits don't get away from you. Thus, if you play the game
well, you'll learn the lessons necessary to be a good long-term
trader/investor.
I don't have a lot of information about any particular stock or
commodity that you give. How am I suppose to make a decision?
Actually, taking every trade in this simulation is a little like
following a system. You don't know which trades will make money,
but you know that you will make money if you take them all and
manage your money well. You also know that you have a positive
expectancy by trading on the long side.
The key to making money in the markets is money management. That
is what we are emphasizing in this game. Most people think that
the key to success is analyzing the market and finding the next
winner. That's why most people have a lot of trouble making
money. We're trying to teach you how to make money in the markets
through money management. Hopefully, you'll be open to learning
about it.
How can I make a decision on this trade (it could be any one)
when I can't see a chart of it?
The answer to this question is again the same as the last one.
Follow the expectancy and go long. The key to this game is money
management (how much to risk) and how much to continue to ride on
a trade during a winning streak. Going long or short shouldn't be
a part of your decision making. However, we allow you that option
because most people like to make stupid mistakes.
Why not give us a portfolio to trade?
A portfolio would be useful, but our goal with this simulation is
to teach you money management. That's easier to do when you only
have one item to concentrate on. We want to make the lessons
simple and easy for everyone to understand.
What's a good strategy to use in this game?
We don't want to give one strategy and have everyone play that.
However, we will give you some general hints:
Trade a percentage of your equity on each trade --- enough to do
well, but not so much that you'll get too far "in the
hole". You might consider increasing the percentage when you
are ahead and decreasing the percentage of equity when you are
behind.
When the market is up trending (a winning streak on the long
side), conserve some of your profits. On method is by protecting
a fixed percentage of your profits (which is like using a
trailing stop in the market). When the market starts up trending,
you may only protect a small percentage at first, but as the
trend continues, protect more of your profits. One way you might
trail stops (and there are many) would be to trade 80% of the
maximum on day 2; 60% of the maximum on day 3; 40% on day 4; and
20% on day 5 onward. However, you can do any number of
possibilities in terms of protecting your stops. For example, if
you risked 100% of what's possible on days 2 and 3 of a winning
streak, you'd risk losing it all, but you'd have an 8:1 (2^3) =
(((1/0,25)^3)^0,5) = (((1/0,25)^(3*0,5)) winner after three
straight winning days. If you risked the maximum in a trade that
went ten days, you would have a 512 (2^9) (((1/0,25)^9)^0,5) to
one winner. However, in order to get that profit, you would have
to risk all of your profits on days 2 through 10 - which is
probably not a wise decision.
Incidentally, you can determine how much you are allowed to bet
during a winning streak by risking your total equity. The
computer will reject the trade and telling you how much you can
risk. You can then elect to trade a percentage of that figure.
I am having trouble reconciling the following statements: Long
trades have a high positive expectancy but make you money only
25% of the time. Short trades have a negative expectancy but they
make money for you 75% of the time. How can you have positive
expectancy with only a 25% success rate, but negative expectancy
with a 75% success rate?
___________________________________
Expectancy is a function of both the probability of winning and
the size of the average gain to the average loss. For example,
imagine having a bag of marbles in which there are 99 black and
one white. The 99 black ones will cause you to lose
whatever you
risk. The one white one will pay off 1,000 times what you risk.
Each marble is replaced in the bag after it is drawn out. Thus,
on any given trial, you only have a 1% chance of winning, but a
great positive expectancy. I'd play that game all day, but you
must be in the game to capture the 1000 to one marble. [1000 * 1%
- 1 * 99% = 10 - 0,99 = 9,01]
Most people don't understand expectancy, so that's why we do it
that way. To understand expectancy better I'd suggest that you
either subscribe to our Market Mastery newsletter or purchase our
Money Management Report. Also see the expectancy section of this
web site.
When you say that their are only 25% winning trades, please look
at the following scenario and tell me if there are 25% winning
trades.
Gold Loss
ABC Stores Loss
Golf Shoes Win
Golf Shoes Win
Golf Shoes Loss
Copper Loss
Would you agree that there are only four trades there three
losses and one winner that eventually loses. Thus, the winning
percentage is 25%.
Yes, that is correct. There are three losing trades -- gold, ABC
Stores, and Copper -- and one winning trade -- Golf Shoes. Thus,
there are 25% winning trades.
Be looked at the trials in this game, and there is no positive
expectancy. Your engineers need to re-program this thing.
I agree that we have some bugs in the program. The biggest bug is
that it doesn't force you to let your profits run beyond the
second trial of a winning streak. However, you have to take
advantage of those streaks (by letting your profits run) and you
can't keep betting it all (which means you have to raise your
stop). When you do that there are some big winners. For example,
there was a potential 96:1 winner on the long side in one of the
last two games (see below). Not one person took advantage of it.
In addition, the random generation has not had any really big
winning streaks in the past, but there is a good chance of one in
the future.
There is only a positive expectancy on the long side when you
allow your profits to run. For example, a good strategy after a
win might be to risk 80% of the maximum on the second bet of a
win streak; 70% of the maximum on the third trial; 50% of the
maximum on the fourth trial,; 30 % of the maximum on the fifth
trial and 20% thereafter. If the streak, only starts out with a
one to one winner, might not want to risk more than 50% on the
next trial.
In the last game, there was one trial that started out as a five
to one winner. If you had risked a thousand on the first trial
and let the whole winnings go for the five winning trials, you
would have made $96,000. But let's say you did something like the
following:
Trial Risk Amount Won New max. risk
1 $1,000 $5,000 $6,000
2 $5,000 $5,000 $11,000
3 $7,000 $7,000 $18,000
4 $9,000 $9,000 $27,000
5 $8,000 $8,000 $35,000
6 $6,000 ($6,000) $29,000 (Total Gain)
Look what happens, you make $29,000 out of that streak on an
initial risk of $1,000. That's almost a 30 to 1 gain. Even if you
left your risk at the initial win of $5,000, you would still have
made 20:1. However, no one was willing to do that. And, of
course, no game has a positive expectancy if you don't play the
big marbles. Remember that the core risk on this trade - the risk
to your core equity - was never more than $1,000.
During the rest of it, you were just risking open profits.
Some winning trades pay 5:1, others pay 2:1, and others pay 1:1.
What is the distribution of those trades? Also some long trades lose
at 5:1, 2:1, and 1:1. What is the distribution of those?
If we've programmed things correctly for the current game
(beginning September 21st 1997), the long trades can only win or
lose at 1 to 1, with an occasional 2:1 loser on the first trade
only. (There has already been one exception to this on November
7th). The way you'll make a lot of money is to be able to as much
as double your capital everyday by riding a winning streak 10 to
15 days. But of course, if you continually double your risk,
you'll eventually lose it all. You have to lock in some of your
profits, just like you would with a stop order in the
market.
I have made some simulated runs assuming a 25% chance of a winner
being long and a 70% chance of a winner continuing the next day.
I also assumed that a long wins and loses by 1:1 each day. I'm
betting a constant size on each day, and stay with the initial
bet during the
whole long trade if it trends. The bet size is $500. I recorded
100 runs and found out on the average one breaks even. To
conclude, your rules don't give a positive expectancy on the long
side.
The long trade is one trade. Your initial risk might be $500, but
you can risk $1,000 on day two, $2,000 on day three, $4,000 on
day 3, $8,000 on day four etc. By day 14, you could risk
as much as $446,000. Your core equity risk would still only be
$500 since it is the same trade. Please understand that -- if ABC
Stores wins for 8 straight days it is still only one trade. You
can let profits ride in a trade. That's what is wrong with your
calculations. Money management determines how much you risk
initially. But money management also controls your position size
during the trade. The golden rule of trading is let your profits
run.
You need to lock in some of your profits. Otherwise, you'll
eventually lose your core equity risk and all your accumulated
profits in that trade), but you could theoretically make 16,384
to 1 on the initial risk of a trade that goes 15 days. A trade
that goes 15 days is not that probably, but some big winners are.
What if I haven't played for a few days, how do I know if we're
in a winning trade or not? And if we are in a winning trade, can
I jump into the middle?
There is no way that you can know if we are in a winning trade or
not if you've been away for a few days. However, the odds are
much greater than the 25% that we will be in one if you've
been away for a while. Yes, you can jump right in. Just realize
that if it is already going, it might not last that much longer.
I've been following the winners and number 26 appeared to go
short and then go back in on the long side. The rules say that
cannot be done and I haven't been able to do it. What gives?
That's a great question and it illustrates how one of the querks
in the game, previously given in the instructions, works. When
you leave the game for a period of time, the computer does
not process your trade until you return. If the trade is no
longer in a winning streak when you return, it will be counted as
a loser (even those it would have been a winner had you played
the next day. Here's what happened with number 26.
Viper Technologies did not actually have a losing day until 12/7.
However, #25 made a trade on 11/6 and then did not return until
11/9. Since the 11/6 trade had not been resolved, it was declared
a winner, but the next trade was carried over and lost at double
the best size. As a result, it might have looked like #26 really
went short on 11/8 in Basket Ball Inc.. But was really happened
was that several trading days were skipped.
__________________________________
If you look at what people are doing with money management in
this game, it is really atrocious. First, if you want to get into
the top 10 in any of the first three games you could probably bet
$50 long on every trade and make it. Sometimes there are only 10
profitable people in a game (aside from our staff members and
people who are cheating and playing two accounts at one time),
and you get into the top ten if you make $500. Most of you want
to get into the top ten immediately. Resist that temptation and
just follow your discipline. Most of the people in the top 10 end
up doing something foolish and then falling behind. Be patient.
Most of you give into the temptation to bet with the probability
and you do so big time. Several people risked everything on the
first trial and went bankrupt. If you risk more than 5% on the
short side on any trial, you risk bankruptcy.
Percentage risk and percentage return do
not have a symmetric effect on the portfolio, because the
required percentage return to recoup a given loss (in percent)
increases geometrically with the size of the loss. Not adjusting
the trading size to the portfolio value (by decreasing with
greater risk) would lead to an increase of risk at an increasing
rate (as expressed by the increasing leverage of a fixed-size
trading position).
The process of translating portfolio risk into number of units
traded, under given price risk estimates, is shown here using a
T-Bond position as an example.
Example A: Proposed LONG position in US T-Bonds at 100
(Unit Face Value US$ 100,000)
Estimated (Accepted) Price Risk: 2%
Allocated Equity to this trade: US$ 1,000,000
Accepted Portfolio Risk on Position: 1.5%
Calculating Accepted Position Risk in absolute US$ = (1,000,000 *
1.5%) = 15,000
Calculating Accepted Per Unit Risk in absolute US$ = (100,000 *
2% ) = 2,000
Accepted size of the trading position = 15,000 / 2,000 = 7.5
units of T-Bonds at face value US$ 100,000 equalling a US$
750,000 investment. If contract sizes do not permit the exact
trade size as calculated, we mostly round down to the lower
possible trading size (lower risk), here, a US$ 700,000
investment.
Example B: Actual Market Price is now at 101 (up from 100)
System calculates price risk to be 3% (up from 2%).
Allocated equity now at US$ 800,000 (due to losses in other
markets within the portfolio)
Accepted Portfolio Risk unchanged at 1.5%
Calculating Accepted Position Risk in absolute US$ = (800,000 *
1.5%) = 12,000
Calculating Accepted Per Unit Risk in absolute US$ = (101,000 *
3% ) = 3,030
Calculated accepted position size = 12,000 / 3,030 = 3.96 units
of T-Bonds (at face value US$ 100,000), rounded up to 4 units,
equals accepted position size of US$ 400,000. The system will
therefore issue a signal to sell US$ 300,000 worth of T-Bonds in
order to adjust the position to changes in the price risk and in
the portfolio composition, expressed in the lower portfolio
allocation.
CAPITALIZATION
Capitalization (actually, the lack thereof) is perhaps the most
overlooked, misunderstood, and MAIN reason why so many traders
starting out fail to achieve their goals. They go into their new
business without an adequate supply of a traders lifeblood:
CAPITAL. Think of yourself as a general or field marshal. You are
fighting a war. If the war goes badly at first and your opening
battles all end in defeat, then you must have adequate reserves
to carry on the struggle until you emerge victorious. You lose
all your soldiers, guess what? YOU LOSE!!! A general can not hope
to fight a successful campaign without enough soldiers in his
army. A trader can not trade his account properly if financial
armageddon rides upon every trade.
YOU MUST BE SUFFICIENTLY CAPITALIZED! IF YOU ARE NOT YOU ARE
DOOMED TO FAILURE FROM THE BEGINNING!
THE RULE OF 4.5
What then is sufficient capital to begin trading the S&P/DJ?
As a common sense guideline I have developed a simple and
straightforward method to determine what your MINIMUM account
balance should be to open your account and begin trading. I call
this THE RULE OF 4.5. Simply put, you can NOT risk more than 4.5%
of your total equity on any single trade. This gives you the
advantage of being able to lose 20 times in a row without having
your account wiped out. (If you do lose 20 times in a row I want
you to do 2 things: 1) Realize that you were not meant to be a
trader. 2) Send me your methodology so I can fade it).
All kidding aside, there is something known as LUCK and STREAKS.
If you begin trading 2 S&P contracts with $5000 and run into
a bad streak (say 4 out of 5 losers for a loss of $2500) at the
very start, you are going to seriously think about quiting right
away! Thats a 50% drawdown in equity in a very short period of
time...maybe even ONE day! It will be very difficult from a
psychological standpoint to trade properly after that or have
confidence in your abilities. Yet if you were properly
capitalized you would have only suffered a %12 drawdown on those
S&P contracts, not nice, but you can dig in your heels and
continue the fight!
Below is a simple table to determine what your MINIMUM opening
account balance should be based upon the Rule of 4.5. The amount
of the contracts varies based upon the account balance. Remember:
you must always begin with TWO contracts at a minimum, or you do
not stand a ghost of a chance to be profitable.
OPENING ACCOUNT EQUITY: 7000 10000 13000 16000
# Dow Jones (DJ) you can trade: 2 3 4 5
OPENING ACCOUNT EQUITY: 20000 30000 40000
# S&P 500 you can trade: 2 3 4
If you stick to the above table, and do not deviate from it (and
for goodness sakes, if you do deviate, do so on the side of
caution), then you have an excellent chance of making money. If
you disregard this advice, you do so at your own peril! THIS MAY
WELL BE THE SINGLE MOST IMPORTANT ADVICE I AM GIVING YOU. IF YOU
LEARN NOTHING ELSE, THEN LEARN THIS.