NEW YORK (AP) — A look at Nasdaq 10 most-active stocks at 1 p.m.:

Apple Inc. fell 3.6 percent to $501.70 with 14,265,300 shares traded.

Cisco Systems Inc. rose 1.7 percent to $20.83 with 24,371,100 shares traded.

Dendreon Corp. rose 5.2 percent to $6.49 with 14,230,700 shares traded.

Facebook Inc. fell 1.9 percent to $31.11 with 64,963,400 shares traded.

Groupon Inc. fell .7 percent to $5.31 with 13,985,000 shares traded.

Intel Corp. fell 1.1 percent to $21.76 with 14,909,800 shares traded.

Micron Technology Inc. rose .5 percent to $7.58 with 17,246,400 shares traded.

Microsoft Corp. rose .2 percent to $26.88 with 17,106,800 shares traded.

Research in Motion Ltd. rose 10.0 percent to $14.92 with 99,857,100 shares traded.

Sirius XM Radio Inc. fell .5 percent to $3.15 with 52,463,600 shares traded.