IBRX Dark Pool Activity
Immunitybio, Inc.
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 3.0M IBRX shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 1.7M of those shares (58.4%) were marked short or short-exempt, above IBRX's 30-day rolling average of 56.6% (z-score 0.20). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), IBRX's off-exchange short volume ratio ranged from 58.1% to 67.2% and averaged 62.2%; the latest reading is below that 10-session average.
Off-Exchange Volume
3.0M
Short Volume
1.7M
Short Volume Ratio
58.4%
30-Day Average
56.6%
z-score 0.20
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 5.6M | 3.5M | 62.3% |
| Oct 13, 2026 | 6.0M | 3.9M | 65.2% |
| Oct 14, 2026 | 15.2M | 10.2M | 67.2% |
| Oct 15, 2026 | 9.7M | 6.1M | 63.2% |
| Oct 16, 2026 | 10.7M | 6.7M | 63.1% |
| Oct 19, 2026 | 9.8M | 5.7M | 58.1% |
| Oct 20, 2026 | 6.2M | 3.9M | 62.1% |
| Oct 21, 2026 | 6.0M | 3.6M | 60.0% |
| Oct 22, 2026 | 6.6M | 4.1M | 62.3% |
| Oct 23, 2026 Latest | 3.0M | 1.7M | 58.4% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
IBRX dark pool FAQ
- How much IBRX off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 3.0M IBRX shares in publicly disseminated off-exchange trades on Oct 23, 2026; 1.7M of those shares (58.4%) were marked short or short-exempt.
- Is IBRX's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, IBRX's short volume ratio of 58.4% is above IBRX's 30-day rolling average of 56.6% (z-score 0.20). Meridian's dark pool model does not flag this reading as an anomaly.
- What does the dark pool short volume ratio measure?
- FINRA publishes daily short sale volume for trades reported off-exchange to its trade reporting facilities, which include dark pools and other off-exchange venues. The ratio divides FINRA's ShortVolume figure, which counts both short and short-exempt sales, by the total off-exchange shares reported for that day. It is not short interest and not a directional signal: market-maker hedging and reporting mechanics can raise it, so it is context for other signals.