Top 10 New York Stock Exchange-traded stocks posting largest volume increases

Markets Associated Press

A look at the 10 biggest volume gainers on New York Stock Exchange at the close of trading:

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Armstrong World Inds : Approximately 8,306,800 shares changed hands, a 863.5 percent increase over its 65-day average volume. The shares fell $5.77 or 10.4 percent to $49.60.

Brookfield Canada Office Properties : Approximately 8,800 shares changed hands, a 352.0 percent increase over its 65-day average volume. The shares rose $.08 or .3 percent to $25.69.

Brown-Forman class A : Approximately 17,800 shares changed hands, a 356.6 percent increase over its 65-day average volume. The shares fell $1.78 or 2.0 percent to $88.57.

Compass Minerals International Inc. : Approximately 1,613,700 shares changed hands, a 553.2 percent increase over its 65-day average volume. The shares fell $7.19 or 7.6 percent to $87.43.

Dover Downs Gaming & Entertainment Inc. : Approximately 170,900 shares changed hands, a 639.9 percent increase over its 65-day average volume. The shares fell $.01 or .8 percent to $1.29.

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Family Dollar Stores Inc. : Approximately 31,265,200 shares changed hands, a 1,842.7 percent increase over its 65-day average volume. The shares rose $15.08 or 24.9 percent to $75.74.

Gabelli Multimedia Trust Inc. : Approximately 579,200 shares changed hands, a 378.0 percent increase over its 65-day average volume. The shares rose $.05 or .5 percent to $9.55.

QR Energy LP : Approximately 1,661,100 shares changed hands, a 393.9 percent increase over its 65-day average volume. The shares rose $.67 or 3.3 percent to $20.82.

Trulia Inc. : Approximately 13,841,500 shares changed hands, a 687.1 percent increase over its 65-day average volume. The shares rose $8.69 or 15.4 percent to $65.04.

Wiley John B : Approximately 1,800 shares changed hands, a 366.0 percent increase over its 65-day average volume. The shares fell $.65 or 1.1 percent to $60.14.