Below are the SPX 30min and 15min PnF charts respectively. Both show the same trading range which turned out to be an accumulation phase leading to a rally to all time highs. That trading range is now our support level to watch. The 30min chart highlights the relatively high volume transacted during the accumulation phase which will determine the strength of the rally. The 15min chart provides a more granular view of the price action after the 1773.1 breakout. A trip back down to this support area doesn't seem out of the question.
Thanks for reading.