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 TRN…
⚠ 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 28 | 1.2M | $29.8M | 1.2M $29.8M | 1.61× +61% avg 723K · $22.1M, Oct 27, 2025 – Oct 27, 2026 |
| Last week 5 sessions | Oct 22 – Oct 28 | 4.3M | $110.0M | 859K $22.0M | 1.20× +20% avg 716K · $21.9M, Oct 21, 2025 – Oct 21, 2026 |
| Last month 21 sessions | Sep 30 – Oct 28 | 16.7M | $429.5M | 796K $20.5M | 1.15× +15% avg 690K · $21.3M, Sep 29, 2025 – Sep 29, 2026 |
| Last year 252 sessions | Oct 28, 2025 – Oct 28, 2026 | 183.1M | $5.58B | 727K $22.2M | 1.26× +26% avg 575K · $17.2M, Oct 24, 2024 – Oct 27, 2025 |