MAR Dark Pool Activity
Marriott International Inc /Md/
Data as of Oct 26, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 26, 2026, FINRA reported 397K MAR shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 236K of those shares (59.5%) were marked short or short-exempt, above MAR's 30-day rolling average of 59.2% (z-score 0.03). Over the last 10 FINRA sessions (Oct 13, 2026 – Oct 26, 2026), MAR's off-exchange short volume ratio ranged from 40.6% to 61.3% and averaged 54.4%; the latest reading is above that 10-session average.
Off-Exchange Volume
397K
Short Volume
236K
Short Volume Ratio
59.5%
30-Day Average
59.2%
z-score 0.03
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 13, 2026 | 249K | 130K | 52.2% |
| Oct 14, 2026 | 414K | 217K | 52.4% |
| Oct 15, 2026 | 713K | 437K | 61.3% |
| Oct 16, 2026 | 622K | 373K | 59.9% |
| Oct 19, 2026 | 478K | 268K | 56.0% |
| Oct 20, 2026 | 629K | 351K | 55.8% |
| Oct 21, 2026 | 696K | 320K | 46.0% |
| Oct 22, 2026 | 1.1M | 427K | 40.6% |
| Oct 23, 2026 | 508K | 307K | 60.5% |
| Oct 26, 2026 Latest | 397K | 236K | 59.5% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
MAR dark pool FAQ
- How much MAR off-exchange volume did FINRA report on Oct 26, 2026?
- FINRA's daily short sale volume file reported 397K MAR shares in publicly disseminated off-exchange trades on Oct 26, 2026; 236K of those shares (59.5%) were marked short or short-exempt.
- Is MAR's dark pool short volume ratio unusual right now?
- As of Oct 26, 2026, MAR's short volume ratio of 59.5% is above MAR's 30-day rolling average of 59.2% (z-score 0.03). 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.