What Does On-Balance Volume Actually Read on MES 1-minute Charts?
Educational reference. Measured from 89,372 recorded values on Micro E-mini S&P 500 1-minute charts through September 4, 2026.
The middle half of all readings sat between -411,364 and 6,656, with a median of -33,732.
On-Balance Volume measures a running total of volume, added on up bars and subtracted on down bars. This page reports what it actually read on Micro E-mini S&P 500 1-minute charts — not what it is supposed to do, but the distribution of 89,372 recorded values over the last 90 days.
| Series | Median | Middle half | 5th / 95th | Full range |
|---|---|---|---|---|
| On-Balance Volume | -33,732 | -411,364 – 6,656 | -603,718 / 90,680 | -758,329 – 255,190 |
The median is the middle reading, so a single unusual session cannot drag it. The middle half is where On-Balance Volume sat on half of all bars — the range you should expect to see most of the time on this chart.
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How this was measured
Every 1-minute bar of Micro E-mini S&P 500 recorded in the last 90 days was read, and the values grouped without smoothing or filtering. Series with fewer than 400 readings are omitted rather than shown on thin evidence. These are recorded values, not forecasts.