XYZ Dark Pool Activity
Block, Inc.
Data as of Oct 26, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 26, 2026, FINRA reported 1.9M XYZ shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 745K of those shares (39.9%) were marked short or short-exempt, below XYZ's 30-day rolling average of 50.9% (z-score -1.25). Over the last 10 FINRA sessions (Oct 13, 2026 – Oct 26, 2026), XYZ's off-exchange short volume ratio ranged from 32.4% to 60.1% and averaged 46.0%; the latest reading is below that 10-session average.
Off-Exchange Volume
1.9M
Short Volume
745K
Short Volume Ratio
39.9%
30-Day Average
50.9%
z-score -1.25
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 13, 2026 | 1.7M | 545K | 32.4% |
| Oct 14, 2026 | 1.8M | 668K | 36.3% |
| Oct 15, 2026 | 1.9M | 948K | 50.3% |
| Oct 16, 2026 | 1.7M | 817K | 48.0% |
| Oct 19, 2026 | 1.2M | 553K | 46.6% |
| Oct 20, 2026 | 1.3M | 806K | 60.1% |
| Oct 21, 2026 | 897K | 475K | 53.0% |
| Oct 22, 2026 | 1.3M | 682K | 52.0% |
| Oct 23, 2026 | 1.9M | 789K | 41.4% |
| Oct 26, 2026 Latest | 1.9M | 745K | 39.9% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
XYZ dark pool FAQ
- How much XYZ off-exchange volume did FINRA report on Oct 26, 2026?
- FINRA's daily short sale volume file reported 1.9M XYZ shares in publicly disseminated off-exchange trades on Oct 26, 2026; 745K of those shares (39.9%) were marked short or short-exempt.
- Is XYZ's dark pool short volume ratio unusual right now?
- As of Oct 26, 2026, XYZ's short volume ratio of 39.9% is below XYZ's 30-day rolling average of 50.9% (z-score -1.25). 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.