A.T. Cross Company (NASDAQ:ATX) is down 16.92% in midday trading at $8.30. ATX has traded 302 thousand shares today, way above its daily average of just 33 thousand shares. ATX is down today after announcing preliminary 2011 financial results and 2012 guidance. The company has a market cap of 107.12 million.

BioDelivery Sciences International, Inc. (NASDAQ:BDSI) is down 7.03% today at $1.72. BDSI has traded 770 thousand shares today, well above its daily average of 282 thousand shares. BDSI is pulling back today after it jumped up about $0.50 on Friday. The company has a market cap of 51.73 million. Sign Up For Our Free Weekly Newsletter

Headwaters Inc. (NYSE:HW) is down 6.05% in midday trading at $2.02. HW has traded 338 thousand shares and trades about 600 thousand shares a day on average. The company has a market cap of 123.66 million.

Arcos Dorados Holdings Inc. (NYSE:ARCO) is down 4.15% today at $18.49. ARCO has traded 1.5 million shares so far today and trades around 2 million shares. ARCO shares have fallen about $3 a share over the past week. The company has a market cap of 3.88 billion.

Patriot Coal Corporation (NYSE:PCX) is down 3.99% in midday trading at $8.66. PCX has traded 3.7 million shares so far today and trades 6.8 million shares a day on average. The company has a market cap of 788.17 million.

Zogenix, Inc. (NASDAQ:ZGNX) is down 9.22% today at $2.56. ZGNX has traded 1.2 million shares so far today, well above its daily average of 337 thousand shares. ZGNX is pulling back today after it jumped close to $1 last week. The company has a market cap of 169.48 million.