The top after-market NYSE losers on Thursday are: Mueller Water Products, CareFusion Corp, LSI Corp, Constellation Brands, CONSOL Energy and Constellation Energy Group.

Mueller Water Products, Inc. (NYSE:MWA) shares declined 4.98 percent to $4.20 in aftermarket trading. In regular trading, the stock rose 4.74 percent to $4.42. The stock surged more than 40 percent in the last three months.

CareFusion Corp (NYSE:CFN) shares declined 2.7 percent to $24.24 in post market trading hours on Thursday. The stock has a 52 week low of $20.63 and 52 week high of $30.08 and has 222.94M outstanding shares.

LSI Corp (NYSE:LSI) shares declined 1.65 percent to $5.96 in aftermarket trading session. The company was recently upgraded at Street Rating to 'Buy' from 'Hold'.

Constellation Brands Inc. (NYSE:STZ) shares declined 1.35 percent to $22.01 in post market trading. The company said on Thursday that it has agreed to sell its Australian and U.K. business to Australia-based Champ Private Equity in a transaction valued at about a $290 million or US$290.81 million.

CONSOL Energy Inc. (NYSE:CNX) shares declined 1.26 percent to $46.16 in post market trading session on Wednesday. The stock has a 52 week low of $31.08 and 52 week high of $58.00 and has 225.84M outstanding shares.

Constellation Energy Group, Inc (NYSE:CEG) shares declined 1.22 percent to $30.71 in aftermarket trading hours on Thursday. On Wednesday, Citigroup upgraded shares of Constellation Energy Group from a “hold” rating to a “buy” rating in a research note to clients and investors.