M Dark Pool Activity
Macy's Inc
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 1.7M M shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 1.1M of those shares (65.8%) were marked short or short-exempt, above M's 30-day rolling average of 54.2% (z-score 1.26). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), M's off-exchange short volume ratio ranged from 49.9% to 84.3% and averaged 61.1%; the latest reading is above that 10-session average.
Off-Exchange Volume
1.7M
Short Volume
1.1M
Short Volume Ratio
65.8%
30-Day Average
54.2%
z-score 1.26
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 2.1M | 1.1M | 50.6% |
| Oct 13, 2026 | 1.8M | 1.1M | 60.5% |
| Oct 14, 2026 | 3.3M | 2.1M | 63.5% |
| Oct 15, 2026 | 4.1M | 2.2M | 54.8% |
| Oct 16, 2026 | 3.1M | 2.2M | 68.9% |
| Oct 19, 2026 | 5.6M | 4.7M | 84.3% |
| Oct 20, 2026 | 1.8M | 953K | 54.1% |
| Oct 21, 2026 | 1.9M | 1.1M | 58.6% |
| Oct 22, 2026 | 2.2M | 1.1M | 49.9% |
| Oct 23, 2026 Latest | 1.7M | 1.1M | 65.8% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
M dark pool FAQ
- How much M off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 1.7M M shares in publicly disseminated off-exchange trades on Oct 23, 2026; 1.1M of those shares (65.8%) were marked short or short-exempt.
- Is M's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, M's short volume ratio of 65.8% is above M's 30-day rolling average of 54.2% (z-score 1.26). 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.