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 PRT…
⚠ 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 | 33K | $58K | 33K $58K | 0.65× −35% avg 51K · $145K, Oct 8, 2025 – Oct 8, 2026 |
| Last week 5 sessions | Oct 5 – Oct 9 | 181K | $327K | 36K $65K | 0.72× −28% avg 50K · $146K, Oct 2, 2025 – Oct 2, 2026 |
| Last month 21 sessions | Sep 11 – Oct 9 | 676K | $1.3M | 32K $63K | 0.63× −37% avg 51K · $151K, Sep 10, 2025 – Sep 10, 2026 |
| Last year 252 sessions | Oct 9, 2025 – Oct 9, 2026 | 12.8M | $36.5M | 51K $145K | 1.17× +17% avg 43K · $172K, Oct 7, 2024 – Oct 8, 2025 |