E-Health Inc. (Nasdaq: EHTH) shares rallied 14.5% to $13.33. Volume was 1.8 million shares, triumphing over a daily average of 351,000, after the online health-insurance provider reported fourth-quarter profit that beat forecasts, though it gave a more pessimistic view of 2011 earnings than analysts had forecasted.

Sirius XM Radio Inc. (Nasdaq: SIRI) traded in 38.3 million shares Thursday, catching up on its daily average of 51.4 million, SIRI prices improved 0.6% to $1.80.

Tasty Baking Company (Nasdaq: TSTY) lost 10.7% in price Thursday to $2.34. Volume was 299,365 shares, more than four times its daily average.