Top 10 Nasdaq-traded stocks posting largest volume increases

Markets Associated Press

A look at the 10 biggest volume gainers on Nasdaq at the close of trading:

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Harvard Apparatus Regenerative Technology Inc. : Approximately 1,261,500 shares changed hands, a 1,548.3 percent increase over its 65-day average volume. The shares rose $.44 or 15.1 percent to $3.36.

Key Technology Inc. : Approximately 305,800 shares changed hands, a 9,664.9 percent increase over its 65-day average volume. The shares rose $.57 or 4.5 percent to $13.10.

Oncolytics Biotech Inc. : Approximately 7,131,600 shares changed hands, a 1,596.5 percent increase over its 65-day average volume. The shares rose $.21 or 40.4 percent to $.72.

Providence Worcester Railroad Co. : Approximately 89,400 shares changed hands, a 1,277.4 percent increase over its 65-day average volume. The shares rose $.53 or 2.9 percent to $18.55.

Radio One Inc. : Approximately 44,900 shares changed hands, a 1,202.0 percent increase over its 65-day average volume. The shares rose $.43 or 15.5 percent to $3.20.

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Rosetta Genomics Ltd. : Approximately 14,416,400 shares changed hands, a 14,227.9 percent increase over its 65-day average volume. The shares rose $1.15 or 31.5 percent to $4.80.

Signal Genetics Inc. : Approximately 5,409,800 shares changed hands, a 4,915.6 percent increase over its 65-day average volume. The shares fell $1.29 or 33.0 percent to $2.62.

Superconductor Technologies Inc. : Approximately 478,100 shares changed hands, a 1,599.4 percent increase over its 65-day average volume. The shares fell $.53 or 19.4 percent to $2.20.

Vasco Data Security International Inc. : Approximately 16,858,200 shares changed hands, a 1,685.4 percent increase over its 65-day average volume. The shares rose $.11 or .4 percent to $27.97.

Vascular Biogenics Ltd. : Approximately 1,896,100 shares changed hands, a 5,694.8 percent increase over its 65-day average volume. The shares fell $9.24 or 65.5 percent to $4.87.