A man takes a photo outside the Nasdaq Market site in New York's Times Square
A man takes a photo outside the Nasdaq Market site in New York's Times Square Reuters

The top after-market NASDAQ gainers Thursday were Penn National Gaming Inc, Ameristar Casinos Inc, Celldex Therapeutics Inc and Aruba Networks Inc.

Penn National Gaming Inc (PENN) shares climbed 25.63 percent to $47.25 in post-market trading. The stock has a 52-week low of $33.62, a 52-week high of $46.55 and $2.87 billion in market capitalization.

Ameristar Casinos Inc (ASCA) shares gained 6.17 percent to $17.89 in post-market trading. The stock has a 52-week low of $15.04, a 52-week high of $23.47 and $552.80 million in market capitalization.

Celldex Therapeutics Inc (CLDX) shares advanced 5.70 percent to $5.38 in post-market trading. The stock has a 52-week low of $2.29, a 52-week high of $6.71 and $315.45 million in market capitalization.

Aruba Networks Inc (ARUN) shares rose 5.34 percent to $20.50 in post-market trading. The stock has a 52-week low of $12.36, a 52-week high of $25 and $2.17 billion in market capitalization.

The top after-market NASDAQ losers Thursday were Sears Holdings Corporation, Sina Corporation, Catamaran Corporation, Supernus Pharmaceuticals Inc and HomeAway Inc.

Sears Holdings Corporation (SHLD) shares declined 7.32 percent to $54.20 in post-market trading. The stock has a 52-week low of $28.89, a 52-week high of $85.90 and $6.23 billion in market capitalization.

Sina Corporation (SINA) shares slumped 6.74 percent to $49.52 in post-market trading. The stock has a 52-week low of $43.12, a 52-week high of $80.80 and $3.52 billion in market capitalization.

Catamaran Corporation (CTRX) shares dropped 5.58 percent to $44.33in post-market trading. The stock has a 52-week low of $25.49, a 52-week high of $53.13 and $9.63 billion in market capitalization.

Supernus Pharmaceuticals Inc (SUPN) shares fell 4.94 percent to $12.03 in post-market trading. The stock has a 52-week low of $4.30, a 52-week high of $16.68 and $310.30 million in market capitalization.

HomeAway Inc (AWAY) shares declined 4.58 percent to $20.17 in post-market trading. The stock has a 52-week low of $19.19, a 52-week high of $32.53 and $1.76 billion in market capitalization.

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