NEW YORK ( TheStreet) -- Shares of Affymetrix (Nasdaq: AFFX) were gapping down Thursday morning with an open price 17.5% lower than Wednesday's closing price. The stock closed at $8 Wednesday and opened today's trading at $6.60.

The average volume for Affymetrix has been 1.6 million shares per day over the past 30 days. Affymetrix has a market cap of $556.3 million and is part of the technology sector and electronics industry. Shares are up 59% year to date as of the close of trading on Wednesday.

Affymetrix, Inc. engages in the development, manufacture, sale, and servicing of consumables and systems for genetic analysis in the life sciences and clinical healthcare markets.

TheStreet Ratings rates Affymetrix as a hold. The company's strengths can be seen in multiple areas, such as its solid stock price performance, compelling growth in net income and largely solid financial position with reasonable debt levels by most measures. However, as a counter to these strengths, we find that revenues have generally been declining. You can view the full Affymetrix Ratings Report.

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