Some curious facts from Deutsche Bank:
Powell has now presided over 24 FOMCs and on average the S&P 500 has been -0.15% (15 out of the 24 were down days) lower on decision day – though this is heavily weighted by his first 7 meetings, which saw equities slip back when the Fed started its small hiking cycle in 2018. In terms of 10 year yields they have been -3.0bps lower on average with a median of -1.6bps (16 out 24 down in yield) on Powell FOMC days. To put this in perspective the S&P 500 is up +49.5% since his tenure begun in February 2018 and 10yr yields are down -108.8bps.