Somebody is hammering the close on SPX and price is dumping

Look at the 3 minute chart below because Tradingview doesn't accept posts with a timeframe less than 15 minutes.
It is apparent that people have started to sell the close and there is not enough buying activity at the open or over the course of the day to keep the price up. A lot of traders appear to be exiting their positions at the last 3 minutes of the day. The volume SMA is set to the default of 20, so it when our closing volume of the day is 4.5 or more higher than the last 20 periods and the last hour is the busiest of trading it seems that smart money is selling into whatever strength it can find. On the 15 minute chart the volume for the last candle easily reaches 10x the last 20 periods

To zoom out even further to a dialy chart we see a bearishly engulfing candle that put price action back to where we were a month ago and the On balance Volume is below both the 10 and 20 EMAs. This occurs with the Multiple Time Frame Volatility Stop has flipped to bearish. this is generally a bad situation for the bulls.

I put risk on with SPXU on 9/3 and I intend to hold that till I see SPY out of the monthly bollinger band. If i see the MTF Vstop flip on me first I will re-evaluate.