Relative volume compares how much a stock is trading now vs its usual pace. High RVOL means it’s “in play” — the fuel small-cap movers run on. Enter a ticker to see its volume and dollar volume for the last session, week, month and year, each against an average session.
Checking volume for SPY…
⚠ End-of-day data — this compares the last full session’s volume to the trailing average, not live intraday RVOL. Real-time intraday relative volume is on the roadmap. RVOL ≥ 2-3× often flags a stock in play; ≥ 5× is extreme.
Each period’s average session against the average session in the 252 sessions (one trading year) before it, so a period is never compared with itself. The year row is compared with the year before it.
| Period | Sessions | Shares | Dollar volume (est.) | Per session | vs average session before |
|---|---|---|---|---|---|
| Latest session 1 session | Oct 27 | 28.6M | $22.04B | 28.6M $22.04B | 0.44× −56% avg 64.4M · $45.41B, Oct 24, 2025 – Oct 26, 2026 |
| Last week 5 sessions | Oct 21 – Oct 27 | 179.9M | $137.77B | 36.0M $27.55B | 0.56× −44% avg 64.8M · $45.65B, Oct 20, 2025 – Oct 20, 2026 |
| Last month 21 sessions | Sep 29 – Oct 27 | 829.5M | $637.93B | 39.5M $30.38B | 0.59× −41% avg 67.4M · $47.09B, Sep 26, 2025 – Sep 28, 2026 |
| Last year 252 sessions | Oct 27, 2025 – Oct 27, 2026 | 16.18B | $11.41T | 64.2M $45.29B | 0.97× −3% avg 66.2M · $39.83B, Oct 23, 2024 – Oct 24, 2025 |