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Nasdaq stocks posting largest volume increases
BusinessWeek Acadia Healthcare Co. : Approximately 2758500 shares changed hands, a 3671.4 percent increase over its 65-day average volume. The shares rose $ .92 or 5.9 percent to $ 16.51. GSI Group : Approximately 5763300 shares changed hands, a 4464.5 percent … Nasdaq stocks posting largest volume decreases |