Top After-Market NASDAQ Movers (Zumiez, Geospace, True Religion, O'Reilly, Akamai, Kforce, Zoltek, Adept, iRobot)

Gainers

Zumiez Inc (NASDAQ:ZUMZ) shares gained 5.24 percent to $23.31 in post-market trading. The specialty retailer of action sports related apparel, footwear, equipment and accessories, announced Wednesday that total net sales for the five-week period ended Feb. 2, 2013 increased 57.9 percent to $50.3 million, compared to $31.8 million for the four-week period ended Jan. 28, 2012. 

Geospace Technologies Corporation (NASDAQ:GEOS) shares climbed 4.44 percent to $97.99 in post-market trading Wednesday as the company reported a profit for the first quarter that more than doubled from last year on strong revenue growth. Both, revenue and earnings per share for the quarter beat analysts' estimates.

Geospace's net income for the first quarter was $22.01 million or $1.70 per share, up from $8.69 million or $0.68 per share in a year ago quarter. Analysts expected the company to report earnings of $1.21 per share for the quarter. 

True Religion Apparel Inc (NASDAQ:TRLG) shares advanced 4.42 percent to $24.80 in post-market trading. The company exceeded its own sales target in the fourth quarter. Sales grew 15 percent to $137 million. In November, the company had targeted earnings per share of 52 cents to 58 cents a share on sales of $128 million to $133 million.

O'Reilly Automotive Inc (NASDAQ:ORLY) shares rose 3.68 percent to $96.00 in post-market trading. The company reported robust sales and earnings for the fourth quarter. Sales for the fourth quarter ended Dec. 31, 2012, increased over $97 million, or 7 percent, to $1.49 billion from $1.39 billion for the same period a year ago. Gross profit for the fourth quarter increased to $750 million (or 50.4 percent of sales) from $695 million (or 49.9 percent of sales) for the same period a year ago, representing an increase of 8 percent.  

Net income for the fourth quarter ended Dec. 31, 2012, increased $10 million or 8% to $133 million from $123 million for the same period a year ago.

Losers

Akamai Technologies Inc (NASDAQ:AKAM) shares declined 15.70 percent to $35.05 in post-market trading.  The company reported fourth quarter normalized net income of $0.54 per share after the close Wednesday, up from $0.45 per share a year ago. The consensus estimate was for EPS of $0.50.

Kforce Inc (NASDAQ: KFRC) shares dropped 13.72 percent to $13.52 in post-market trading. The stock has a 52-week low of $10.34, a 52-week high of $16.47 and $563.41 million in market capitalization.

Zoltek Companies Inc (NASDAQ:ZOLT) shares slumped 11.46 percent to $7.03 in post-market trading. The stock tumbled after the company reported a decline in first quarter profits compared to a year ago period. Zoltek reported a net income of $3.0 million ($0.09 per share) in this year's first quarter, compared to a net income of $9.7 million ($0.28 per share) in the first quarter of fiscal 2012 and $4.3 million ($0.13 per share) in the fourth quarter of fiscal 2012.    

Adept Technology Inc (NASDAQ: ADEP) shares fell 9.47 percent to $3.53 in post-market trading. The company announced financial results for its fiscal 2013 second quarter ended Dec. 29, 2012. Revenue for period under consideration was $10.8 million, below $15.2 million in revenue for the second quarter of fiscal 2012, and slightly below $11.4 million in revenue for the previous first quarter of fiscal 2013.

Adept reported a GAAP net loss of $5.2 million, or $0.49 per share in the second quarter of fiscal 2013, compared to a net loss of $1.2 million, or $0.13 per share in the second quarter of fiscal 2012, and a net loss of $3.1 million, or $0.29 per share in the first quarter of fiscal 2013.

iRobot Corporation (NASDAQ:IRBT) shares declined 9.11 percent to $21.65 in post-market trading. The stock has a 52-week low of $16.25, a 52-week high of $38.33 and $661.15 million in market capitalization.