NEW YORK (GenomeWeb News) – Shares of Affymetrix climbed 30 percent in June after the firm announced early in the month that Frank Witney had rejoined the company, replacing Kevin King as president and CEO.
Affymetrix, which is currently trading at a 52-week high, led all shares in the GenomeWeb Daily News Index.
Two other firms, Exact Sciences (+15 percent) and Caliper Life Sciences (+13 percent), also rose in the double digits in an otherwise down month for many of the stocks in the Index.
Exact's stock climbed in the past two weeks. Wedbush Securities recently initiated coverage on the firm with an "Outperform" rating and a $10 price target.
Rosetta Genomics had the steepest decline among the stocks that lost ground for the month. Rosetta fell around 33 percent in June and is down 69 percent for the year.
Among the other stocks that dropped significantly during the month were Nanosphere (-29 percent), Accelr8 (-24 percent), and Vermillion (-24 percent).
Overall, the GWDN Index was down nearly 2 percent, matching the drop for both the Nasdaq and Nasdaq Biotech Index. The Dow Jones Industrial Average lost 1 percent.