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 OS…
⚠ 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 | Mar 31 | 2.7M | $65.3M | 2.7M $65.3M | 1.20× +20% avg 2.3M · $51.5M, Mar 28, 2025 – Mar 30, 2026 |
| Last week 5 sessions | Mar 25 – Mar 31 | 18.4M | $439.8M | 3.7M $88.0M | 1.65× +65% avg 2.2M · $50.4M, Mar 24, 2025 – Mar 24, 2026 |
| Last month 21 sessions | Mar 3 – Mar 31 | 48.2M | $1.15B | 2.3M $54.6M | 1.04× +4% avg 2.2M · $49.8M, Feb 28, 2025 – Mar 2, 2026 |
| Last year 252 sessions | Comparing needs at least 252 sessions before the period; we hold 423 sessions since 2024-07-24. | ||||