The top aftermarket NYSE losers Wednesday were: Sandridge Energy, Materion Corp, Endeavor International, McDermott International, OMNOVA Solutions, MEMC Electronic Materials, General Cable Corp, W.R. Berkley Corp, Ciber and Fair Isaac Corp.

Sandridge Energy Inc. (SD) shares slumped 6.9 percent to $7.29 in post market trading session. The company announced that it had entered into an agreement to acquire Dynamic Offshore Resources LLC $1.28 billion in cash and stock. The purchase will made using $680 in cash and approximately 74 million shares of SandRidge common stock valued at $8.02 per share.

 Materion Corp. (MTRN) shares plunged 6.16 percent to $29.41 in post market trading session. The company stock surged nearly 7 percent in regular trading session.

Endeavor International Corp. (END) shares plunged 6.04 percent to $10.58 in aftermarket trading session. The stock has a 52-week low of $5.80, a 52-week high of $16.43 and $424.09 million in market capitalization.

McDermott International, Inc. (MDR) shares declined 5.81 percent to $12.16 in post market trading session.

OMNOVA Solutions Inc. (OMN) shares declined 5.7 percent to $4.96 in aftermarket trading session. The company stock gained more than 6 percent in regular trading session.

MEMC Electronic Materials, Inc. (WFR) shares declined 5.58 percent to $4.57 in post market trading session. The stock has a 52-week low of $3.65, a 52-week high of $15.04 and $1.12 billion in market capitalization.

General Cable Corp. (BGC) shares declined 5.4 percent to $30.86 in post market trading session. The company stock surged more than 5 percent in regular trading session.

W.R. Berkley Corp. (WRB) shares declined 5.25 percent to $34.27 in post market trading session.

Ciber, Inc. (CBR) shares declined 5.02 percent to $4.35 in aftermarket trading session. The company stock surged more than 5 percent in regular trading session.

Fair Isaac Corp. (FICO) shares declined 4.83 percent to $36.24 in aftermarket trading session.