Progenics Pharmaceuticals (PGNX) Clinical trials fail. Drops to $4.33 from 52-week high of $27.59.

Divx Inc (DIVX) Bad 2008 forecast. Shares sell off to $6.12 from 52-week high of $23.76.

Immucor (BLUD) Buy-out of smaller company kills share price. Down to $17.30 from 52-week high of $39.96.

KLA-Tencor (KLAC) Shares downgraded. Slips to $37.75 from 52-week high of $62.67.

Humana (HUM) Cuts forecasts. Dives to $33.45 from 52-week of $88.10.

AMR Corporation (AMR) Airline stocks downgraded as oil price goes up. Plunges to $9.13 from 52-week high of $34.25.

Douglas A. McIntyre