The swing high may be in, and price has a couple of decisions to make early this week to show us whether that is now the case. All charts were done either yesterday (RTH charts) or before the open this morning (futures charts) for subscribers at theartofchart.net.
SPX is on an hourly RSI 14 sell signal, and short term rising wedge support was tested twice and held as support on Friday. That has broken this morning, and subject to any short term topping process the next big trendline target is larger rising wedge support, currently in the 2455 area. SPX 60min chart:
