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Dolby stock rises on upcoming move to S&P MidCap 400

Shares of Dolby Laboratories Inc. (DLB) were up 4.8% after hours on Thursday after S&P Dow Jones Indices said the audio-tech company would replace Staar Surgical Co. (STAA) in the S&P MidCap 400. Staar Surgical will replace Urstadt Biddle Properties Inc. (UBP) in the S&P SmallCap 600. The moves take hold before the opening of trading on Aug. 22. "S&P 500 constituent Regency Centers Corp. (REG) will acquire Urstadt Biddle Properties in a transaction expected to close soon pending final closing conditions. Staar Surgical is more representative of the small-cap market space," S&P Dow Jones Indices said in a statement.

-Bill Peters

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08-17-23 1746ET

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