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 MST…
⚠ 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 23 | 108K | $1.4M | 108K $1.4M | 0.43× −57% avg 251K · $2.2M, Oct 22, 2025 – Oct 22, 2026 |
| Last week 5 sessions | Oct 19 – Oct 23 | 1.0M | $13.8M | 209K $2.8M | 0.84× −16% avg 249K · $2.2M, Oct 16, 2025 – Oct 16, 2026 |
| Last month 21 sessions | Sep 25 – Oct 23 | 2.5M | $35.4M | 121K $1.7M | 0.48× −52% avg 253K · $2.5M, Sep 24, 2025 – Sep 24, 2026 |
| Last year 252 sessions | Comparing needs at least 252 sessions before the period; we hold 372 sessions since 2025-05-02. | ||||