Shares of PDF Solutions Inc. (NASDAQ:PDFS) saw unusually-strong trading volume on Friday . Approximately 319,107 shares changed hands during trading, an increase of 87% from the previous session’s volume of 170,846 shares.The stock last traded at $16.41 and had previously closed at $16.03.

A number of research analysts have commented on PDFS shares. Zacks Investment Research upgraded shares of PDF Solutions from a “hold” rating to a “buy” rating and set a $15.00 price target on the stock in a research report on Thursday, June 30th. Craig Hallum cut shares of PDF Solutions from a “buy” rating to a “hold” rating in a research report on Friday.

The stock has a market cap of $515.39 million and a PE ratio of 60.89. The stock has a 50-day moving average of $14.58 and a 200 day moving average of $12.80.

PDF Solutions (NASDAQ:PDFS) last posted its quarterly earnings data on Thursday, July 28th. The company reported $0.17 earnings per share for the quarter, missing the Zacks’ consensus estimate of $0.18 by $0.01. The firm earned $26.70 million during the quarter, compared to analysts’ expectations of $25.66 million. The firm’s quarterly revenue was up 15.1% on a year-over-year basis. During the same quarter in the prior year, the firm posted $0.18 earnings per share. On average, equities analysts forecast that PDF Solutions Inc. will post $0.77 EPS for the current fiscal year.

In related news, Director R Stephen Heinrichs acquired 6,118 shares of the stock in a transaction dated Friday, May 27th. The shares were purchased at an average cost of $14.24 per share, with a total value of $87,120.32. Following the transaction, the director now directly owns 19,187 shares in the company, valued at $273,222.88. The acquisition was disclosed in a filing with the SEC, which is accessible through the SEC website.

A hedge fund recently raised its stake in PDF Solutions stock. Royce & Associates LLC increased its position in shares of PDF Solutions Inc. (NASDAQ:PDFS) by 108.0% during the fourth quarter, according to its most recent 13F filing with the SEC. The institutional investor owned 457,700 shares of the company’s stock after buying an additional 237,700 shares during the period. Royce & Associates LLC owned about 1.46% of PDF Solutions worth $4,961,000 as of its most recent filing with the SEC.

PDF Solutions, Inc is a provider of infrastructure technologies and services for integrated circuits (IC). The Company’s technologies and services focus on the IC manufacturing process life cycle. It operates in the segment of licensing and implementation of yield improvement solutions for integrated circuit manufacturers.

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