Editor's Note: In this feature from
Stockpickr , we highlight lists of stocks that have made new highs, lows or seen other unusual activity. 52-Week Highs : Bausch & Lomb ( BOL) shares rose 9.8% to $67.50, a 52-week high, on news it agreed to be acquired by private-equity firm Warburg Pincus. Biggest % Gainers : Monolithic Power Systems ( MPWR) jumped 16% to $16.62, the day's biggest percentage gain. The semiconductor company benefited from a favorable verdict from a California jury in a patent infringement lawsuit. The company also was Rising on Unusual Volume . Shares were trading at more than nine times average. Biggest % Losers : Arrhythmia Research Technology ( HRT) sank 35%, flat-lining with the day's biggest percentage drop. The company announced disappointing earnings Wednesday. 52-Week Lows : Gaming Partners International ( GPIC) plummeted 32% to $10.83, a 52-week low. The gaming-chip manufacturer posted disappointing earnings. Latest Activist Situations : Shamrock Activist Value Fund disclosed late on Tuesday that it had upped its stake to 6.37% in Modine Manufacturing ( MOD), which makes engine cooling components. Sell or back up the truck? HazyDavy asks. Does Wachovia's downgrade of Bear Stearns ( BSC) raise concerns for other banks, such as Goldman Sachs ( GS)? windwardskies asks. I'm Feeling Lucky .