IBM · RVOL vs 30-day average · as of 2026-10-15 close
relative volume
1.01×
NORMAL
dollar volume (est.)
$1.31B
⚠ 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.
IBM 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 15 | 5.6M | $1.31B | 5.6M $1.31B | 0.81× −19% avg 6.9M · $1.78B, Oct 14, 2025 – Oct 14, 2026 |
| Last week 5 sessions | Oct 9 – Oct 15 | 20.9M | $4.80B | 4.2M $960.8M | 0.60× −40% avg 6.9M · $1.79B, Oct 8, 2025 – Oct 8, 2026 |
| Last month 21 sessions | Sep 17 – Oct 15 | 119.4M | $27.12B | 5.7M $1.29B | 0.82× −18% avg 6.9M · $1.80B, Sep 16, 2025 – Sep 16, 2026 |
| Last year 252 sessions | Oct 15, 2025 – Oct 15, 2026 | 1.74B | $450.10B | 6.9M $1.79B | 1.50× +50% avg 4.6M · $1.15B, Oct 11, 2024 – Oct 14, 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 15, 2026 (Databento).