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 MOS…
⚠ 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 12 | 11.0M | $207.1M | 11.0M $207.1M | 1.31× +31% avg 8.4M · $206.4M, Oct 9, 2025 – Oct 9, 2026 |
| Last week 5 sessions | Oct 6 – Oct 12 | 57.0M | $1.11B | 11.4M $222.6M | 1.38× +38% avg 8.3M · $205.0M, Oct 3, 2025 – Oct 5, 2026 |
| Last month 21 sessions | Sep 14 – Oct 12 | 193.2M | $4.31B | 9.2M $205.1M | 1.15× +15% avg 8.0M · $201.6M, Sep 11, 2025 – Sep 11, 2026 |
| Last year 252 sessions | Oct 10, 2025 – Oct 12, 2026 | 2.12B | $52.07B | 8.4M $206.6M | 1.66× +66% avg 5.1M · $150.6M, Oct 8, 2024 – Oct 9, 2025 |