MSFT Dark Pool Activity
MICROSOFT CORP
Data as of Oct 26, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 26, 2026, FINRA reported 6.4M MSFT shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 2.3M of those shares (36.3%) were marked short or short-exempt, below MSFT's 30-day rolling average of 40.7% (z-score -0.83). Over the last 10 FINRA sessions (Oct 13, 2026 – Oct 26, 2026), MSFT's off-exchange short volume ratio ranged from 36.3% to 47.2% and averaged 40.5%; the latest reading is below that 10-session average.
Off-Exchange Volume
6.4M
Short Volume
2.3M
Short Volume Ratio
36.3%
30-Day Average
40.7%
z-score -0.83
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 13, 2026 | 9.1M | 3.9M | 42.9% |
| Oct 14, 2026 | 7.2M | 2.8M | 38.3% |
| Oct 15, 2026 | 7.9M | 3.0M | 37.4% |
| Oct 16, 2026 | 10.1M | 4.2M | 41.5% |
| Oct 19, 2026 | 6.0M | 2.7M | 44.4% |
| Oct 20, 2026 | 5.2M | 2.4M | 47.2% |
| Oct 21, 2026 | 4.5M | 1.8M | 40.8% |
| Oct 22, 2026 | 6.9M | 2.7M | 38.3% |
| Oct 23, 2026 | 5.1M | 2.0M | 38.3% |
| Oct 26, 2026 Latest | 6.4M | 2.3M | 36.3% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
MSFT dark pool FAQ
- How much MSFT off-exchange volume did FINRA report on Oct 26, 2026?
- FINRA's daily short sale volume file reported 6.4M MSFT shares in publicly disseminated off-exchange trades on Oct 26, 2026; 2.3M of those shares (36.3%) were marked short or short-exempt.
- Is MSFT's dark pool short volume ratio unusual right now?
- As of Oct 26, 2026, MSFT's short volume ratio of 36.3% is below MSFT's 30-day rolling average of 40.7% (z-score -0.83). 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.