SPX and SPY, 1 September 2026. Every turn of this day happened at one of four boundaries, and each was made of something different. Click a shaded zone on the chart — or a button — to see what built that border and what it cost.
Data. The price path is drawn from SPY 5-minute regular-hours bars for 1 Sep 2026 (AlphaVantage, delayed feed) — the same session as the SPX chart, with SPX levels quoted from the chart itself. SPY prices convert to SPX at roughly 10.02×, which is why SPY's 09:30 low of 761.17 and the chart's opening-range low of 7627.88 are the same line. Volumes are the SPY 5-minute bars printed into each border.