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 PFE…
⚠ 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 9 | 23.2M | $656.2M | 23.2M $656.2M | 0.50× −50% avg 46.2M · $1.20B, Oct 8, 2025 – Oct 8, 2026 |
| Last week 5 sessions | Oct 5 – Oct 9 | 155.9M | $4.33B | 31.2M $866.7M | 0.67× −33% avg 46.6M · $1.21B, Oct 2, 2025 – Oct 2, 2026 |
| Last month 21 sessions | Sep 11 – Oct 9 | 690.4M | $19.30B | 32.9M $919.0M | 0.68× −32% avg 48.6M · $1.25B, Sep 10, 2025 – Sep 10, 2026 |
| Last year 252 sessions | Oct 9, 2025 – Oct 9, 2026 | 11.61B | $301.11B | 46.1M $1.19B | 1.00× 0% avg 46.0M · $1.16B, Oct 7, 2024 – Oct 8, 2025 |