Benzinga’s Volume Movers (STST, QLGC, AMAG, SORL, XRTX)

ARGON ST Inc (NASDAQ: STST) shares rose 3.30% to $24.76. The volume of STST shares traded was 401% higher than normal. STST is considering strategic options, including a potential sale of the company, a merger or an acquisition.

QLogic Corporation (NASDAQ: QLGC) shares jumped 8.47% to $20.50. The volume of QLGC shares traded was 379% higher than normal, after BMO Capital Markets forecasted a recovery in server sales in the current year and upgraded the stock.

AMAG Pharmaceuticals Inc (NASDAQ: AMAG) shares gained 5.33% to $50.94. The volume of AMAG shares traded was 368% higher than normal, following the upgrade by Citigroup from “hold” to “buy.”

SORL Auto Parts Inc (NASDAQ: SORL) shares climbed 7.14% to $11.70. The volume of SORL shares traded was 352% higher than normal. SORL’s subsidiary, Ruili Group Ruian Auto Parts Co Ltd, has been awarded the "High-Tech Enterprise" designation by the Chinese government.

Xyratex Ltd (NASDAQ: XRTX) shares moved up 4.23% to $15.02. The volume of XRTX shares traded was 269% higher than normal after BMO Capital Markets upgraded XRTX from “market perform” to “outperform.”