NEW YORK, Aug. 17, 2023 /PRNewswire/ -- Dolby Laboratories Inc. (NYSE:DLB) will replace Staar Surgical Co. (NASD:STAA) in the S&P MidCap 400 and Staar Surgical will replace Urstadt Biddle Properties Inc. (NYSE:UBA) in the S&P SmallCap 600 effective prior to the opening of trading on Tuesday, August 22. S&P 500 constituent Regency Centers Corp. (NASD: 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. 

Following is a summary of the changes that will take place prior to the open of trading on the effective date: 

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