Tech weekly gainers: Zygo Corporation (NASDAQ:ZIGO), GrubHub Inc (NYSE:GRUB), WebMD Health Corp. (NASDAQ:WBMD), Splunk Inc (NASDAQ:SPLK)

Securities lawyers at Deans & Lyons announce an investigation of the board of Zygo Corporation (NASDAQ: ZIGO) in connection with a buyout for $19.25 per share. Concerned ZIGO investors are encouraged to contact attorney Hamilton Lindley by clicking here. Zygo Corporation (NASDAQ:ZIGO) shares after opening at $19.23 moved to $19.31 on last trade day and at the end of the day closed at $19.25. Company price to sales ratio in past twelve months was calculated as 2.23 and price to cash ratio as 4.02. Zygo Corporation (NASDAQ:ZIGO) showed a positive weekly performance of 31.13%.

Online food delivery service GrubHub Inc (NYSE:GRUB) settled a probe by the New York state attorney general on Wednesday by agreeing to not to charge fees that would allow it to make money off customers’ tips. GrubHub Inc (NYSE:GRUB) shares fell -4.18% in last trading session and ended the day on $35.95. GRUB return on equity ratio is recorded as 0.70% and its return on assets is 0.50%.

Equities research analysts at William Blair initiated coverage on shares of WebMD Health Corp. (NASDAQ:WBMD) in a research note issued to investors on Thursday, StockRatingsNetwork reports. The firm set an “outperform” rating on the stock. WebMD Health Corp. (NASDAQ:WBMD) shares moved up 0.76% in last trading session and was closed at $44.99, while trading in range of $44.36-$45.60. WebMD Health Corp. (NASDAQ:WBMD) year to date performance is 13.90%.

TheStreet Ratings team rates Splunk Inc (NASDAQ:SPLK) as a Sell with a ratings score of D+. TheStreet Ratings Team has this to say about their recommendation: We rate SPLUNK INC (SPLK) a SELL. This is driven by several weaknesses, which we believe should have a greater impact than any strengths, and could make it more difficult for investors to achieve positive results compared to most of the stocks we cover.Splunk Inc (NASDAQ:SPLK) weekly performance is 12.74%. On last trading day company shares ended up $65.84. Splunk Inc (NASDAQ:SPLK) distance from 50-day simple moving average is -17.67%. Analysts mean target price for the company is $102.15.