ANALYZING CHART PATTERNS: TRIANGLES
As you may have noticed, chart pattern names don't leave
much to the imagination. This is no different for the triangle patterns, which
clearly form the shape of a triangle. The basic construct of this chart pattern
is the convergence of two trendlines - flat, ascending or descending - with the
price of the security moving between the two trendlines.
There are three types of triangles, which vary in
construct and significance:
the symmetrical triangle, the descending triangle
and the ascending triangle.
Symmetrical triangle
The symmetrical triangle is mainly considered to be a
continuation pattern that signals a period of consolidation in a trend followed
by a resumption of the prior trend. It is formed by the convergence of a
descending resistance line and an ascending support line. The two trendlines in
the formation of this triangle should have a similar slope converging at a
point known as the apex. The price of the security will bounce between these
trendlines, towards the apex, and typically breakout in the direction of the
prior trend.
If preceded by a downward trend, the focus should be on
a break below the ascending support line. If preceded by an upward trend, look
for a break above the descending resistance line. However, this pattern doesn't
always lead to a continuation of the previous trend. A break in the opposite
direction of the prior trend should signal the formation of a new trend.
Figure 1: Symmetrical triangle
Above is an example of a symmetrical triangle that is
preceded by an upward trend. The first part of this pattern is the creation of
a high in the upward trend, which is followed by a sell-off to a low. The price
then moves to another high that is lower than the first high and again sells
off to a low, which is higher than the previous low. At this point the
trendlines can be drawn, which creates the apex. The price will continue to
move between these lines until breakout.
The pattern is complete when the price breaks out of the
triangle - look for an increase in volume in the direction of the breakout.
This pattern is also susceptible to a return to the previous support or
resistance line that it just broke through, so make sure to watch for this
level to hold if it does indeed break out.
Ascending Triangle
The ascending triangle is a bullish pattern, which gives
an indication that the price of the security is headed higher upon completion.
The pattern is formed by two trendlines: a flat trendline being a point of
resistance and an ascending trendline acting as a price support.
The price of the security moves between these trendlines
until it eventually breaks out to the upside. This pattern will typically be
preceded by an upward trend, which makes it a continuation pattern; however, it
can be found during a downtrend.
Figure 2: Ascending triangle
As seen above, the price moves to a high that faces
resistance leading to a sell-off to a low. This follows another move higher,
which tests the previous level of resistance. Upon failing to move past this
level of resistance, the security again sells off - but to a higher low. This
continues until the price moves above the level of resistance or the pattern
fails.
The most telling part of this pattern is the ascending
support line, which gives an indication that sellers are starting to leave the
security. After the sellers are knocked out of the market, the buyers can take
the price past the resistance level and resume the upward trend.
The pattern is complete upon breakout above the resistance
level, but it can fall below the support line (thus breaking the pattern), so
be careful when entering prior to breakout.
Descending triangle
The descending triangle is the opposite of the ascending
triangle in that it gives a bearish signal to chartists, suggesting that the
price will trend downward upon completion of the pattern. The descending
triangle is constructed with a flat support line and a downward-sloping
resistance line.
Similar to the ascending triangle, this pattern is
generally considered to be a continuation pattern, as it is preceded by a
downward trendline. But again, it can be found in an uptrend.
Figure 3: Descending triangle
The first part of this pattern is the fall to a low that
then finds a level of support, which sends the price to a high. The next move
is a second test of the previous support level, which again sends the stock
higher - but this time to a lower level than the previous move higher. This is
repeated until the price is unable to hold the support level and falls below,
resuming the downtrend.
This pattern indicates that buyers are trying to take
the security higher, but continue to face resistance. After several attempts to
push the stock higher, the buyers fade and the sellers overpower them, which
sends the price lower.
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