BEAM Dark Pool Activity
Beam Therapeutics Inc.
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 611K BEAM shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 395K of those shares (64.8%) were marked short or short-exempt, below BEAM's 30-day rolling average of 67.5% (z-score -0.31). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), BEAM's off-exchange short volume ratio ranged from 44.2% to 70.3% and averaged 60.5%; the latest reading is above that 10-session average.
Off-Exchange Volume
611K
Short Volume
395K
Short Volume Ratio
64.8%
30-Day Average
67.5%
z-score -0.31
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 568K | 326K | 57.3% |
| Oct 13, 2026 | 666K | 415K | 62.4% |
| Oct 14, 2026 | 648K | 358K | 55.2% |
| Oct 15, 2026 | 785K | 470K | 59.8% |
| Oct 16, 2026 | 705K | 477K | 67.7% |
| Oct 19, 2026 | 465K | 303K | 65.1% |
| Oct 20, 2026 | 501K | 293K | 58.4% |
| Oct 21, 2026 | 443K | 196K | 44.2% |
| Oct 22, 2026 | 527K | 371K | 70.3% |
| Oct 23, 2026 Latest | 611K | 395K | 64.8% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
BEAM dark pool FAQ
- How much BEAM off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 611K BEAM shares in publicly disseminated off-exchange trades on Oct 23, 2026; 395K of those shares (64.8%) were marked short or short-exempt.
- Is BEAM's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, BEAM's short volume ratio of 64.8% is below BEAM's 30-day rolling average of 67.5% (z-score -0.31). 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.