Editor's Note: In this feature from Stockpickr, we highlight lists of stocks that have made new highs, lows or seen other unusual activity.
Biggest % Gainers: Fuel cell maker Hoku Scientific (HOKU) skyrocketed 47% after the company announced a $678 million polysilicon contract. Beginning in 2009, Hoku will deliver polyscilicon to Suntech Power (STP) over a 10-year period. Hoku shares rose $2.15 to $6.75.
52-Week Lows: Drugmaker Sanofi-Aventis (SNY - Get Report) plunged to $41.33, a 52-week low, after the Food and Drug Administration indicated it would reject the company's weight-loss drug Zimulti. The news sent shares tumbling $1.74, or 4%.Biggest % Losers: Capstone Turbine (CPST) decreased 8% Thursday, after the microturbine maker reported a slump in fourth-quarter and full-year revenue. Shares of the Chatsworth, Calif.-based company fell 9 cents, landing at $1.03. Rising on Unusual Volume: Trading at double its average volume, Homex Development (HXM - Get Report) increased 3.8% during Thursday's rally. Unlike its fellow American homebuilders, the Mexico-based company is steadily expanding and recently reported 20% growth in first-quarter revenues. Shares gained $2.29 closing at $62.59. Stocks With Unusual Option Activity: Exelon (EXC - Get Report) was experiencing unusual options activity.