Top Percentage Gainers and Losers as of 12pm 4/14/11(CHINA, SVU, IDIX, SIFY, REDF, SWSH, HAIN, KITD, YONG, ZOOM, FSII, DLB, BAC, GS, SRZ, ABMD)

2) SuperValue SVU: Trading up 14.21% from yesterday's close to $10.38. The company reported $0.44 Q4 EPS versus the $0.34 estimate.

3) Idenix Pharmaceuticals IDIX: Trading up 13.87% from yesterday's close to $4.32. The company was upgraded from Neutral to Buy at Bank of America BAC earlier this week.

4) Sify Technologies SIFY: Trading up 13.31% from yesterday's close to $6.13. Shares have gained 82.8% over the past 13 trading days.

5) Rediff.com India REDF: Trading up 12.53% from yesterday's close to $9.25. Positive comments from TheStreet are helping give shares a boost.

Other notable movers

Hygiene SWSH: Up 7.44% from yesterday's close to $9.97.

The Hain Celestial Group HAIN: Up 7.08% from yesterday's close to $32.78.

Worst

1) KIT digital KITD: Trading down 11.12% from yesterday's close to $9.99. The company announced plans to purchase ioko365 Ltd. earlier in the week.

2) Yongye International YONG: Trading down 9.51% from yesterday's close to $4.47. Shares have lost 35.7% since reporting earnings on March 15th.

3) Zoom Technologies ZOOM: Trading down 7.24% from yesterday's close to $3.78. Shares had traded as high as $5.08 in yesterday's session after acquiring patent licenses from Qualcomm QCOM to develop mobile phones for the global marketplace.

4) FSI International FSII: Trading down 7.07% from yesterday's close to $3.81.

5) Dolby Laboratories DLB: Trading down 6.82% from yesterday's close to $46.47. Goldman Sachs GS reiterated its Sell rating on the stock this morning.

Other notable movers

Sunrise Senior Living SRZ: Down 6.02% from yesterday's close to $9.21.

ABIOMED ABMD: Down 5.73% from yesterday's close to $14.97.