You can't really see it on this chart so you'll have to trust me. If you use Think or Swim trading platform, you can see this gap waiting to be filled on the YTD Daily bar chart. The level is 190.40.
We could get a very healthy bounce off there or we could retest the lows of 181.92. The Federal Reserve and Jackson Hole speak holds the key. The market is becoming increasingly pissed off about the rhetoric. Caution is at a market premium.