A Hard Look at Daytrading
We receive more requests for articles
and advice on day trading than on any other topic.
Beginning traders are especially interested, particularly
those that have been attracted by the glamour and
intensity of the pit traders who seem to be constantly
jumping in and out of the markets and reaping enormous
profits.
It seems like almost all traders have tried day trading
at one time or another. After all, it is very tempting
to try and slug it out with the pit traders. Every tick
is exciting. Every rumor or news item that affects the
market either creates euphoria or is another nail in
the coffin. When you have a position on, you can't stand
the pressure, but if you're not in the market you tear
your hair out every time prices act the way you predicted.
Your heart pumps fast, your adrenaline surges, and you
feel like you've finally arrived in the wild and woolly
world of fast-paced futures trading.
All of this sounds like fun, but as you might imagine,
there are many, many pitfalls along the way. We've come
to realize, after talking to numerous traders who have
attempted or are about to begin day trading, that most
traders who start are not fully aware of the scope of
the problems they face. To some readers the following
discussion may be redundant, but we suspect that many
of our subscribers may be embarking on a venture with
only a limited grasp of the basics.
Cost of Doing Business is High
The day trader enters and exits trades during the same
market session, normally a period of only four to six
hours from opening to close. The very short term nature
of day trading presents both advantages and disadvantages.
The major advantages are the lower margin requirements
and the absence of overnight risk. The disadvantages
are the bad odds, time and effort required, the limited
profit potential, and the burdensome costs of frequent
transactions.
The transaction costs consist of both commissions and
slippage. The commissions are a large and obvious cost
of doing business. However the slippage is much more
difficult to quantify. The trader might have a mental
image of trading at the prices shown on a computer screen,
but in reality he must continuously buy at the offered
price and sell at the bid price. The spread between
the bid and offer becomes a very substantial but hidden
cost of doing business. In addition, as most of us have
learned many times over, it is unrealistic to expect
stop orders to be filled at our stop prices.
In the meantime, to offset these unavoidable costs,
the day trader is limited to very small profits when
he is correct in his analysis and completes a winning
trade. Under even the most optimistic scenario, the
day trader's potential profits are limited to a portion
of the price range that is likely to occur within a
few hours of trading.
Let us assume that our day trader has negotiated a
discounted rate on his day trades and is paying twenty
dollars per trade. Next let's be optimistic and assume
that the spread between the bid and offer amounts to
ten dollars buying and ten dollars selling. In order
for the trader to complete a trade that nets $100 he
must be smart enough to identify a move of $140 according
to the prices on the screen he watches.
On the other hand, when his timing is wrong by only
$140 he is going to lose $180. It doesn't take a Ph.D.
in mathematics or an M.B.A. from Harvard to figure out
that this is far from an ideal business environment.
In fact, even the professionals on the floors of the
exchanges must be intelligent, highly disciplined traders
just to survive.
The public doesn't realize how many of these professionals
fail in spite of the advantage of being on the floor
and paying only minimal costs per trade. Imagine how
small the odds for success must be for an off-the-floor
trader faced with the costs we have described.
To have any hope of success, the day trader must strive
to maximize the profits on the winning trades so that
he can overcome the tremendous disadvantage of both
the obvious and the hidden transaction costs. Unfortunately,
the day trader has very little control of the potential
profit to be obtained because the extent of the price
range during the day absolutely limits the maximum profit
that can be realized.
No trader can reasonably expect to buy at exact bottoms
or sell at exact tops. A very good trader might hope
to be able to capture the middle third of an infra-day
price swing. That means that to make $180, the total
price swing must be three times this amount or $540.
How many futures markets have a daily price range of
$540 or more? Very few. How many futures markets can
produce a $180 net loss? Almost any of them.
Don't forget, the trader that is smart enough to find
markets with $540 price swings and then smart enough
to trade them correctly so that he nets $180 is only
going to break even unless he has more winners than
losers. To make money in the long run, the day trader
must have a percentage of winning trades that is far
better than 50% or he must somehow figure out how to
make more than $180 on a $540 price swing. (or best
of all, do both) This also assumes that the trader is
smart and disciplined enough to harness his instincts
and emotions and carefully limit the size of the losses.
Beating Tough Odds
As you can see, the day trader is faced with an almost
impossible task. We would venture a very educated guess
that less than one out of a thousand day traders make
money over any sustained period of time. Our best advice
is to not even attempt it unless you are one of the
many traders who is actually trading for the recreation
and mental stimulation rather than the money.
If you are serious about making money, your time and
energy will be much better spent perfecting your longer
term trading skills. Even if you should succeed at day
trading, it is difficult to reinvest the profits and
continue to compound them. Day traders can only operate
efficiently in very small size so don't expect to make
your fortune at it, it's only a very enjoyable but hard
earned living at best.
In spite of our sincere warning, we know many of our
readers will attempt to beat the odds and become day
traders for a while. Fortunately, the lessons learned
while day trading can be applied to more serious and
productive trading later on. In the meantime, we will
do our best to explain as much as we can about day trading
and hopefully make the learning process less costly.
Obviously, we don't have all the answers ourselves
or we wouldn't have such a negative outlook on the probability
of success. We certainly have learned a great deal about
this subject over many years of trading and the fact
that we have elected to no longer play this game simply
demonstrates our personal preferences in the allocation
of our productive time. We hope whatever hard-earned
information we can pass along proves helpful.
Selecting Best Markets For Day Trading
As we pointed out earlier, there are very few markets
that have wide enough infra-day price swings to make
them suitable candidates for day trading. Because they
must monitor the prices so closely, day traders generally
prefer to concentrate their efforts on only one or two
markets. In addition to the fact that the prices must
be watched continuously, there are very few markets
that are suitable even if we had the capacity to follow
more of them. Presently, day traders seem to have given
up on pork bellies and tend to favor the stock indexes,
bonds, currencies, and energy markets. From time to
time other markets may become candidates for day trading
because of temporary periods of high volatility.
We ran a test (several years ago) to see what percentage
of the time various markets had a total daily range
of $500 or more between the high of the day and the
low. There were only five markets that had a $500 range
at least two days a week or 40% of the time.
In addition to looking for a wide daily range, liquidity
and the size of the minimum spread should also be factors
to consider when selecting suitable markets for day
trading. Our previous example of costs included paying
a spread of only $10 on each side of a trade.
In the S&P market a minimum spread would be $25
each side while in the bond market a 1/32 spread is
$31.25. If you are day trading bonds with $20 commissions,
you must overcome total costs of $82.50 added to losses
and subtracted from gains. Your average winning trade
must run $165 farther than your average loss just to
break even. This assumes a 1-tick spread which is the
best case possible.
The element of liquidity comes in to play in determining
the number of ticks in the spread between bid and offer.
A one tick spread is the best you can hope for and most
markets have a wider spread than that.
You can usually assume that the higher the average
daily volume, the tighter the spread. For that reason,
you will want to concentrate your day trading in only
those markets with very high volume. Otherwise, you
can be making good timing decisions and still be assured
of losing money.
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