Alcoa Breaks Out of Massive Base Formation
Alcoa moved below 9 in mid 2012 and proceeded to form a long base over the last 15 months. This base gave way to a reversal with a surge above 9 and a 52-week high (intraday). Also notice that the surge started with strong volume. This week's volume is incomplete, but will be above average because the stock traded over 75 million shares on Tuesday.

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