ES (S&P 500 E-mini Futures) 15 Minute Std Dev Prediction Accuracy

E-mini S&P 500 — how LiveCharts.AI predictions for Std Dev on the 15 minute chart have measured up.

These are measured outcomes, not estimates. Position accuracy of 57.4% reflects how closely the projected path tracked what Std Dev actually did; directional accuracy of 93.3% reflects how often the projected direction was right.

EXAMPLE SCREENSHOT · August 2026

LiveCharts.AI projecting Std Dev and price forward on a live chart.

What this reading is

Standard deviation measures how widely price has been scattered around its own average, so it describes volatility rather than direction. On directional accuracy this ranks 9 of 16 readings on this chart, in line with the median of 93.3%.

Why the timeframe changes the read

The same prediction reads differently depending on the chart you act on. A slower frame sets context; a faster one decides timing. E-mini S&P 500 on the 15 minute chart is one view of Std Dev, and comparing it against the other frames below is usually more useful than any single number.

How the prediction is produced

Rather than only plotting what has already happened, LiveCharts.AI projects the next 30 bars forward — for price and for each indicator you have enabled. The projected path and the live direction are generated inside the platform for whichever chart you have open.

See live predictions on LiveCharts.AI →

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