ERC · RVOL vs 30-day average · as of 2026-10-19 close
relative volume
1.02×
NORMAL
dollar volume (est.)
$592K
⚠ 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.
ERC volume and dollar volume by period
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 19 | 70K | $592K | 70K $592K | 0.90× −10% avg 78K · $715K, Oct 16, 2025 – Oct 16, 2026 |
| Last week 5 sessions | Oct 13 – Oct 19 | 369K | $3.1M | 74K $626K | 0.95× −5% avg 78K · $719K, Oct 10, 2025 – Oct 12, 2026 |
| Last month 21 sessions | Sep 21 – Oct 19 | 1.6M | $13.6M | 76K $647K | 0.97× −3% avg 79K · $728K, Sep 18, 2025 – Sep 18, 2026 |
| Last year 252 sessions | Oct 17, 2025 – Oct 19, 2026 | 19.6M | $180.0M | 78K $714K | 0.74× −26% avg 105K · $974K, Oct 15, 2024 – Oct 16, 2025 |
- The multiple compares shares a session, so a price move does not count as extra trading. A week is the last 5 sessions, a month 21 and a year 252.
- Dollar volume is estimated: each session’s shares times its close, added up. Daily bars carry no average traded price, so the true value differs a little.
- Volume is the consolidated total across US exchanges, end of day, through Oct 19, 2026 (Databento).