The pattern from the close before the election on SPX was a rising channel that broke down with a possible double top setup that had a higher risk that usual of developing into a bull flag because the second high was lower. With the intraday low today a perfect triangle has been established that in this context would normally be a bull pennant looking for a retest of the rally high. If bears can't break triangle support and deliver the 30% option, that's very likely exactly what this is. If we do see that rally high retest I'd be looking for that on Monday and would be expecting that to likely be the second high of a double top.
I'd note that on a break down, this setup is also a passable looking H&S that would target the 2123 area on a sustained break below 2153 SPX, but until we see that the break up is the higher probability outcome short term. SPX 5min chart:
Everyone have a great weekend :-)