© Reuters.
Investing.com — Dolby Laboratories (NYSE:) surged in Friday trading after S&P Dow Jones Indices said it was adding the stock to its MidCap 400 index.
Dolby shares rose 10% as of midday. They are up 20% so far this year.
The audio technology company is replacing STAAR Surgical Company (NASDAQ:), S&P said. Staar’s stock was up 3.8%.
At the same time, Staar Surgical will replace Urstadt Biddle Properties (NYSE:) in the S&P SmallCap 600 index, all effective prior to the opening of trading on Aug. 22.
S&P said Regency Centers (NASDAQ:) will acquire Urstadt Biddle Properties in a transaction expected to close soon. “Staar Surgical is more representative of the small-cap market space,” the index company said.
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