MYY - ProShares Short MidCap400 declares quarterly distribution of $0.2628 June, 21 2023 12:14 PM ProShares Short MidCap400 2023-06-21 12:14:22 ET ProShares Short MidCap400 ( MYY ) - $0.2628 . Payable Jun 28; for shareholders of record Jun 22; ex-div Jun 21. For further details see: ProShares Short MidCap400 declares quarterly distribution of $0.2628