NEW YORK (AP) -- A look at Nasdaq 10 most-active stocks at 1 p.m.:
Cisco Systems Inc. fell .6 percent to $23.80 with 23,250,500 shares traded.
Clearwire Corp. rose 4.9 percent to $3.42 with 29,710,900 shares traded.
DryShips Inc. rose 4.1 percent to $2.26 with 11,472,400 shares traded.
Facebook Inc. rose .4 percent to $25.86 with 13,616,400 shares traded.
Groupon Inc. rose 3.9 percent to $7.25 with 18,669,100 shares traded.
Intel Corp. rose .2 percent to $24.13 with 23,826,300 shares traded.
Microsoft Corp. fell .3 percent to $34.99 with 26,125,500 shares traded.
Sirius XM Radio Inc. was unchanged at $3.50 with 24,258,200 shares traded.
Warner Chilcott rose 2.9 percent to $20.16 with 15,262,400 shares traded.
Zynga Inc. rose 4.0 percent to $3.54 with 17,579,600 shares traded.
