NEW YORK (AP) — A look at Nasdaq 10 most-active stocks at the close of trading:

Acme Packet Inc. rose 23.7 percent to $29.59 with 24,863,200 shares traded.

Cisco Systems Inc. was unchanged at $20.82 with 31,452,000 shares traded.

Dell Inc. fell 2.6 percent to $13.27 with 43,000,200 shares traded.

Facebook Inc. fell 5.5 percent to $28.11 with 89,021,200 shares traded.

Intel Corp. fell .9 percent to $21.16 with 36,979,300 shares traded.

Keryx Biopharmaceuticals Inc. fell 7.7 percent to $6.56 with 29,270,700 shares traded.

Micron Technology Inc. fell .9 percent to $7.76 with 26,778,900 shares traded.

Microsoft Corp. fell 1.8 percent to $27.44 with 46,845,600 shares traded.

Research in Motion Ltd. rose 15.0 percent to $14.98 with 80,668,500 shares traded.

Sirius XM Radio Inc. fell 2.0 percent to $3.17 with 53,724,700 shares traded.