US equity markets closed out a turbulent week on mixed note, leaving both the Dow and S&P500 nursing their worst weekly performance sine 2020 - Dow eased -38-points or -0.13% to 29,888.78 after sliding below 1%. The small capitalisation Russell 2000 gained +0.96%. Friday (17 June) was a “quadruple witching” session, the simultaneous expiration of stock index futures, single-stock futures, stock options and stock index options.