Brookdale Senior Living Inc. (NYSE: BKD) shares gained 9% to $25.55, on share volume of 1.8 million, or twice its average, a day after the operator of assisted-living housing reported a narrower fourth-quarter loss. Earlier Thursday, the company announced an agreement for an expanded corporate line of credit.

Sprint Nextel Corp. (Nasdaq: S) traded Thursday in 56.8 million shares, surpassing its daily average of 52.3 million. Prices added 1.8% to $4.28, after taking the wraps off its HTC Arrive smart phone.

Alanco Technologies Inc. (Nasdaq: ALAN) subsided 13.3% to $1.04 Thursday, on share volume of 113,000, more than six times its daily average.