OPEN Dark Pool Activity
Opendoor Technologies Inc.
Data as of Oct 26, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 26, 2026, FINRA reported 22.0M OPEN shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 12.0M of those shares (54.4%) were marked short or short-exempt, above OPEN's 30-day rolling average of 52.0% (z-score 0.32). Over the last 10 FINRA sessions (Oct 13, 2026 – Oct 26, 2026), OPEN's off-exchange short volume ratio ranged from 36.9% to 56.6% and averaged 46.0%; the latest reading is above that 10-session average.
Off-Exchange Volume
22.0M
Short Volume
12.0M
Short Volume Ratio
54.4%
30-Day Average
52.0%
z-score 0.32
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 13, 2026 | 15.4M | 7.9M | 51.4% |
| Oct 14, 2026 | 23.9M | 13.5M | 56.6% |
| Oct 15, 2026 | 33.4M | 16.7M | 49.9% |
| Oct 16, 2026 | 32.9M | 12.7M | 38.6% |
| Oct 19, 2026 | 10.6M | 5.1M | 47.8% |
| Oct 20, 2026 | 12.1M | 4.5M | 36.9% |
| Oct 21, 2026 | 16.6M | 6.5M | 38.8% |
| Oct 22, 2026 | 19.3M | 7.6M | 39.2% |
| Oct 23, 2026 | 12.3M | 5.7M | 46.0% |
| Oct 26, 2026 Latest | 22.0M | 12.0M | 54.4% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
OPEN dark pool FAQ
- How much OPEN off-exchange volume did FINRA report on Oct 26, 2026?
- FINRA's daily short sale volume file reported 22.0M OPEN shares in publicly disseminated off-exchange trades on Oct 26, 2026; 12.0M of those shares (54.4%) were marked short or short-exempt.
- Is OPEN's dark pool short volume ratio unusual right now?
- As of Oct 26, 2026, OPEN's short volume ratio of 54.4% is above OPEN's 30-day rolling average of 52.0% (z-score 0.32). 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.