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 MSI…
⚠ 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 30 | 1.2M | $609.9M | 1.2M $609.9M | 1.09× +9% avg 1.1M · $480.5M, Oct 29, 2025 – Oct 29, 2026 |
| Last week 5 sessions | Oct 26 – Oct 30 | 5.0M | $2.42B | 993K $484.6M | 0.87× −13% avg 1.1M · $478.4M, Oct 23, 2025 – Oct 23, 2026 |
| Last month 21 sessions | Oct 2 – Oct 30 | 18.6M | $8.70B | 888K $414.4M | 0.79× −21% avg 1.1M · $472.4M, Oct 1, 2025 – Oct 1, 2026 |
| Last year 252 sessions | Oct 30, 2025 – Oct 30, 2026 | 288.1M | $121.38B | 1.1M $481.7M | 1.29× +29% avg 887K · $394.7M, Oct 28, 2024 – Oct 29, 2025 |