Gaps are areas on a chart where the price
of a stock (or another financial
instrument) moves sharply up or down with
little or no trading in between. As a
result, the asset's chart shows a "gap"
in the normal price pattern. The
enterprising trader can interpret and
exploit these gaps for profit. Here we'll
help you understand how and why gaps
occur, and how you can use them to make
profitable trades.
Gap Basics
Gaps occur as a result of underlying
fundamental or technical factors. For
example, if a company's earnings are much
higher than expected, the company's stock
may gap up the next day. This means that
the stock price opened higher than it
closed the day before, thereby leaving a
gap. In the forex market, it is not
uncommon for a report to generate so much
buzz that it widens the bid and ask
spread to a point where a significant gap
can be seen. Similarly, a stock breaking
a new high in the current session may
open higher in the next session, thus
gapping up for technical reasons.
Gaps can be classified into four
groups:
1. Breakaway gaps are those that occur at
the end of a price pattern and signal the
beginning of a new trend.
2. Exhaustion gaps occur near the end of
a price pattern and signal a final
attempt to hit new highs or lows.
3. Common gaps are those that cannot be
placed in a price pattern - they simply
represent an area where the price has
"gapped".
4. Continuation gaps occur in the middle
of a price pattern and signal a rush of
buyers or sellers who share a common
belief in the underlying stock's future
direction.
To Fill or Not to
Fill
When someone says that a gap has been
"filled", that means that the price has
moved back to the original pre-gap level.
These fills are quite common and occur as
a result of the following:
-Irrational Exuberance: The initial spike
may have been overly optimistic or
pessimistic, therefore inviting a
correction.
-Technical Resistance: When a price moves
up or down sharply, it doesn't leave
behind any support or resistance.
-Price Pattern: Price patterns are used
to classify gaps; as a result, they can
also tell you if a gap will be filled or
not. Exhaustion gaps are typically the
most likely to be filled because they
signal the end of a price trend, while
continuation and breakaway gaps are
significantly less likely to be filled
since they are used to confirm the
direction of the current trend.
When gaps are filled within the same
trading day on which they occur, this is
referred to as fading. For example, let's
say a company announces great earnings
per share for this quarter, and it gaps
up at open (meaning it opened
significantly higher than its previous
close). Now let's say that, as the day
progresses, people realize that the cash
flow statement shows some weaknesses, so
they start selling. Eventually the price
hits yesterday's close, and the gap is
filled. Many day traders use this
strategy during earnings season or at
other times when irrational exuberance is
at a high.
How To Play the
Gaps
There are many ways to take advantage of
these gaps. Here are a few popular
strategies:
-Some traders will buy when fundamental
or technical factors favor a gap on the
next trading day. For example, they'll
buy a stock after-hours when a positive
earnings report is released, hoping for a
gap up on the following trading day.
-Traders might buy or sell into highly
liquid or illiquid positions at the
beginning of a price movement, hoping for
a good fill and a continued trend. For
example, they may buy a currency when it
is gapping up very quickly on low
liquidity and there is no significant
resistance overhead.
-Some traders will fade gaps in the
opposite direction once a high or low
point has been determined (often through
other forms of technical analysis). For
example, if a stock gaps up on some
speculative report, experienced traders
may fade the gap by shorting the stock.
-Traders might buy when the price level
reaches the prior support after the gap
has been filled. An example of this
strategy is outlined below.
Here are the key
things you will want to remember when
trading gaps:
-Once a stock has started to fill the
gap, it will rarely stop, because there
is often no immediate support or
resistance.
-Exhaustion gaps and continuation gaps
predict the price moving in two different
directions - be sure that you correctly
classify the gap you are going to play.
-Retail investors are the ones who
usually exhibit irrational exuberance;
however, institutional investors may play
along to help their portfolios - so be
careful when using this indicator, and
make sure to wait for the price to start
to break before taking a position.
-Be sure to watch the volume. High volume
should be present in breakaway gaps,
while low volume should occur in
exhaustion gaps.
Conclusion:
Minimizing Risk
Those who study the underlying factors
behind a gap and correctly identify its
type can often trade with a high
probability of success. However, there is
always a risk that a trade can go bad.
You can avoid this by doing the
following:
-Watching the real-time electronic
communication network (ECN) and volume:
This will give you an idea of where
different open trades stand. If you see
high-volume resistance preventing a gap
from being filled, then double check the
premise of your trade and consider not
trading it if you are not completely
certain that it is correct.
-Being sure that the rally is over:
Irrational exuberance is not necessarily
immediately corrected by the market.
Sometimes stocks can rise for years at
extremely high valuations and trade high
on rumors, without a correction. Be sure
to wait for declining and negative volume
before taking a position.
-Using a stop-loss: Always be sure to use
a stop-loss when trading. It is best to
place the stop-loss point below key
support levels, or at a set percentage,
such as -8%.
Remember, gaps are risky (due to low
liquidity and volatility), but if
properly traded, they offer opportunities
for quick profits.
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