Chart Industries Inc. (Nasdaq: GTLS) shares rose 12.7% to $42.74, on share volume of just over one million, triple its average, after the engineered-equipment maker forecast 2011 results higher than analyst predictions.

Sirius XM Radio Inc. (Nasdaq: SIRI) bought and sold 33.2 million shares Thursday, making it a volume leader, but shy of its daily average of 52.1 million. Prices jumped 1.5% to $1.71.

Golden Star Resources Inc. (AMEX: GSS) prices capitulated 14.8% to $3.34 Thursday, on share volume of 10.7 million or three times its normal average, after announcing Wednesday full-year gold revenues of $432.7 million, up 8% over 2009, and a net loss of $8.3 million or $0.032 per share.