Diamond Foods, Inc. (NASDAQ:DMND) is down 36.69% in early trading at $23.17. DMND has traded 20.4 million shares so far today, 10 times its daily average. DMND shares tanking this morning following an internal investigation that showed the company had ‘cooked’ their books. The company’s CEO and CFO have been placed on leave. The company has a market cap of 520.36 million.

iRobot Corporation (NASDAQ:IRBT) is down 32.90% today at $25.73. IRBT has traded 3.5 million shares this morning, well above its daily average of 292 thousand shares. IRBT shares are falling today after announcing quarterly results. EPS beat analyst estimates, but guidance missed expectations. The company has a market cap of 695.36 million.

Apricus Biosciences Inc. (NASDAQ:APRI) is down 17.38% this morning at $3.85. APRI has traded 1.4 million shares so far today, well above its daily average of 194 thousand shares. APRI shares are down in early trading after the company announced $20 million public offering of stocks and warrants. The company has a market cap of 81.13 million.

Array BioPharma Inc. (NASDAQ:ARRY) is down 16.30% today at $2.66. ARRY has traded 4.6 million shares so far today, 15 times its average volume. Array BioPharma announced a public offering of 20 million shares at $2.60 a share. The company has a market cap of 163.42 million.

A123 Systems, Inc. (NASDAQ:AONE) is down 13.77% in early trading at $2.13. AONE has traded 4.1 million shares this morning, double its daily average volume. AONE shares are falling today after receiving multiple analyst downgrades. The company has a market cap of 268.55 million.

Groupon, Inc. (NASDAQ:GRPN) is down 11% today at $21.88. GRPN has traded 4.1 million shares so far today, the stock typically trades 2.2 million shares a day. GRPN shares are tumbling today after announcing earnings. Groupon posted positive revenue, but saw a slowdown in user growth. EPS also missed expectations. Groupon reported a net loss of $42.7 million or $0.08 per share. The adjusted loss came in at $0.02 per share, analysts ere expecting $0.03 per share in profit. The company has a market cap of 13.87 billion.