Nasdaq's 10 most active stocks at 1 p.m.

Markets Associated Press

A look at Nasdaq 10 most-active stocks at 1 p.m.:

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American Realty Capital Properties Inc. fell 7.2 percent to $8.23 with 25,825,300 shares traded.

Apple Inc. rose 1.7 percent to $109.79 with 33,967,800 shares traded.

Facebook Inc. fell 1.2 percent to $74.11 with 22,989,800 shares traded.

Geron Corp. rose 32.3 percent to $2.95 with 20,432,100 shares traded.

Groupon Inc. rose 1.9 percent to $7.45 with 18,555,500 shares traded.

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Intel Corp. rose .7 percent to $34.26 with 15,067,700 shares traded.

Microsoft Corp. rose .9 percent to $47.37 with 12,364,400 shares traded.

Nymox Pharmaceutical Corp. fell 82.5 percent to $.90 with 11,411,800 shares traded.

Plug Power Inc. rose 13.0 percent to $5.32 with 16,174,100 shares traded.

Sapient Corp. rose 41.9 percent to $24.59 with 22,344,900 shares traded.