$SPX it's a tennis match between the 10 and 50-day SMA's, with the 10-day SMA now losing the last set.  

10/50 go into a bullish cross on Fri, unless we suddenly sell off 100 points today or in a gap down open tomorrow, taking us back below the 20-day. Like it or not! https://t.co/GCD6YmtsAe