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Chart of the Day: Failure Test in AAPL

This chart shows a clean failure test in AAPL. The pattern is a brief probe above resistance, followed by an immediate failure and sharp reversal. Many traders would be reluctant to short after a move like this, as it is always possible to point to any number of “levels” that could support prices. However, there is a clear and strong statistical tendency in this pattern (which was the first trading pattern I examined in The Art & Science of Technical Analysis): shorts can be initiated on yesterday’s close, or in today’s session at the same level or higher, with a stop above yesterday’s high. Position sizing with this trade is problematic, as there is always some gap risk in countertrend trades made in strongly trending markets. Regardless, this is a pattern that demands attention.

(It is also worth considering the August consolidation in the S&P 500 as an example of how this pattern should not play out for shorts. Continued consolidation and pressure against resistance is very constructive for the bulls.)

AdamHGrimes

Adam Grimes has over two decades of experience in the industry as a trader, analyst and system developer. The author of a best-selling trading book, he has traded for his own account, for a top prop firm, and spent several years at the New York Mercantile Exchange. He focuses on the intersection of quantitative analysis and discretionary trading, and has a talent for teaching and helping traders find their own way in the market.
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