SEG Dark Pool Activity
Seaport Entertainment Group Inc
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 28K SEG shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 15K of those shares (51.7%) were marked short or short-exempt, above SEG's 30-day rolling average of 40.9% (z-score 0.87). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), SEG's off-exchange short volume ratio ranged from 38.5% to 56.4% and averaged 49.6%; the latest reading is above that 10-session average.
Off-Exchange Volume
28K
Short Volume
15K
Short Volume Ratio
51.7%
30-Day Average
40.9%
z-score 0.87
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 31K | 16K | 52.0% |
| Oct 13, 2026 | 20K | 11K | 56.0% |
| Oct 14, 2026 | 88K | 49K | 55.5% |
| Oct 15, 2026 | 34K | 18K | 51.1% |
| Oct 16, 2026 | 14K | 5K | 38.5% |
| Oct 19, 2026 | 24K | 12K | 52.3% |
| Oct 20, 2026 | 16K | 7K | 40.3% |
| Oct 21, 2026 | 19K | 11K | 56.4% |
| Oct 22, 2026 | 15K | 6K | 41.8% |
| Oct 23, 2026 Latest | 28K | 15K | 51.7% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
SEG dark pool FAQ
- How much SEG off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 28K SEG shares in publicly disseminated off-exchange trades on Oct 23, 2026; 15K of those shares (51.7%) were marked short or short-exempt.
- Is SEG's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, SEG's short volume ratio of 51.7% is above SEG's 30-day rolling average of 40.9% (z-score 0.87). 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.