Tech Stocks Unusual Volume: Criteo (NASDAQ:CRTO), Rudolph Technologies (NYSE:RTEC), SK Telecom Co. (NYSE:SKM), Mantech International (NASDAQ:MANT)

Criteo SA (ADR) (NASDAQ:CRTO) announced that it had closed its public offering of 5,250,000 American Depository Shares, or ADSs, each representing one of Criteo’s ordinary shares, at a price to the public of $45.00 per American Depositary Share. Criteo sold an aggregate of 525,000 ordinary shares in the form of ADSs and certain existing shareholders of Criteo sold an aggregate of 4,725,000 ordinary shares in the form of ADSs. Criteo did not receive any proceeds from the sale of ordinary shares by its existing shareholders. Criteo SA (ADR) (NASDAQ:CRTO) shares after opening at $39.20 moved to $39.38 on last trade day and at the end of the day closed at $36.18. Company price to sales ratio in past twelve months was calculated as 3.41 and price to cash ratio as 34.82. Criteo SA (ADR) (NASDAQ:CRTO) showed a negative weekly performance of -10.78%.

On Feb 24,2014 Rudolph Technologies Inc (NYSE:RTEC) announced completion of record installations in Q4 2013 of its fab-wide yield management software (YMS) products, Discover Enterprise ™ and Genesis Enterprise ™, which are used by semiconductor manufacturers to obtain valuable process yield and equipment productivity information. In addition to traditional semiconductor manufacturing, Discover Enterprise Software was installed at a multi-billion dollar OEM in multiple labs, replacing the incumbent technology. Rudolph attributes the rise in adoption to the industry’s growing need for productivity data as it seeks to increase the yields of new, increasingly complex manufacturing processes. Rudolph Technologies Inc (NYSE:RTEC) shares fell -1.54% in last trading session and ended the day on $10.89. RTEC return on equity ratio is recorded as 1.30% and its return on assets is 1.00%. Rudolph Technologies Inc (NYSE:RTEC) yearly performance is -5.22%.

Sk Telecom Corporati (NYSE:SKM) was upgraded by Zacks from a “neutral” rating to an “outperform” rating in a research note issued on Thursday, StockRatingsNetwork reports. The firm currently has a $26.00 target price on the stock. Zacks‘s target price points to a potential upside of 21.38% from the company’s current price.SK Telecom Co., Ltd. (ADR) (NYSE:SKM) shares moved down -3.44% in last trading session and was closed at $20.76, while trading in range of $20.64-$21.03. SK Telecom Co., Ltd. (ADR) (NYSE:SKM) year to date performance is -15.68%.

Mantech International Corp (NASDAQ:MANT) saw a big move last session, as the company’s shares fell by over 6% on the day. The move came on pretty good volume too with far more shares changing hands than in a normal session. This breaks the recent trend of the company, as the stock is now trading below the volatile price range of $29.09 to $30.45 in the past one-month time frame. Mantech International Corp (NASDAQ:MANT) weekly performance is -2.92%. On last trading day company shares ended up $28.55. Mantech International Corp (NASDAQ:MANT) distance from 50-day simple moving average is -2.92%. Analysts mean target price for the company is $25.75.