Insulet Corporation (PODD) fell 33.4% or $1.71 to $3.40 after the maker of a device to give insulin to diabetic patients that the company expects fiscal 2009 revenue to be in the range of $55 million-$65 million. Analysts expect the company to report fiscal 2009 revenue of $77.72 million.

Steinway Musical Instruments, Inc (LVB) plunged 11.7% or 94 cents to $7.09 after the manufacturer of musical instruments said fourth quarter sales fell 22.5% to $94 million from $121.3 million a year ago. Net income in the quarter fell 56% to $3.4 million or 40 cents per diluted share compared to net income of $7.8 million or 90 cents per share a year ago.

The Cooper Companies, Inc (COO) dropped 4.7% or 95 cents to $19.21 after the vision care company said first quarter sales rose 3% to $251.1 million from $242.8 million a year ago. Net income in the quarter rose 246% to $23.9 million or 53 cents a diluted share compared to net income of $6.9 million or 15 cents a share a year ago.

Wells Fargo & Company (WFC) rose 9.4% or 77 cents to $8.82 after the fourth-largest U.S. bank plans to reduce the quarterly common dividend to 5 cents per share from 34 cents. The dividend cut will save $5 billion.