The top aftermarket NYSE losers Friday were: Mistras Group, Federated Investors, Neustar, ITT Educational Services, Vishay Intertechnology, RPC and RealD Inc.

Mistras Group Inc. (NYSE:MG) shares plunged 4.63 percent to $22.88 in aftermarket trading sessions. The stock has a 52-week low of $13.36, a 52-week high of $26.24 and $664.82 million in market capitalization.

Federated Investors, Inc. (NYSE:FII) shares plunged 4.11 percent to $16.42 in aftermarket trading sessions. Barclays Capital lowered price target on shares of FII to $16.00 from $18.00.

Neustar, Inc. (NYSE:NSR) shares declined 2.54 percent to $34.21 in post-market trading sessions. The stock has a 52-week low of $22.24, a 52-week high of $35.43 and $2.55 billion in market capitalization.

ITT Educational Services, Inc. (NYSE:ESI) shares declined 2.28 percent to $62.39 in post-market trading sessions. Piper Jaffray lowered price target on shares of ESI to $64.00.

Vishay Intertechnology, Inc. (NYSE:VSH) shares declined 2.25 percent to $9.55 in aftermarket trading sessions.

RPC, Inc. (NYSE:RES) shares declined 2.19 percent to $19.96 in post-market trading sessions. The stock has a 52-week low of $14.21, a 52-week high of $29.05 and $2.96 billion in market capitalization.

RealD Inc. (NYSE:RLD) shares declined 1.77 percent to $8.20 in post-market trading sessions. The company stock gained more than 2 percent in regular trading session after Gabelli initiated coverage on RLD with a “buy” rating.