MTB Dark Pool Activity
M&T Bank Corp
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 323K MTB shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 155K of those shares (48.0%) were marked short or short-exempt, below MTB's 30-day rolling average of 59.1% (z-score -0.89). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), MTB's off-exchange short volume ratio ranged from 35.6% to 78.5% and averaged 60.3%; the latest reading is below that 10-session average.
Off-Exchange Volume
323K
Short Volume
155K
Short Volume Ratio
48.0%
30-Day Average
59.1%
z-score -0.89
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 299K | 234K | 78.5% |
| Oct 13, 2026 | 261K | 186K | 71.3% |
| Oct 14, 2026 | 300K | 157K | 52.5% |
| Oct 15, 2026 | 418K | 263K | 62.9% |
| Oct 16, 2026 | 719K | 497K | 69.2% |
| Oct 19, 2026 | 506K | 313K | 61.8% |
| Oct 20, 2026 | 329K | 204K | 61.9% |
| Oct 21, 2026 | 318K | 195K | 61.3% |
| Oct 22, 2026 | 411K | 146K | 35.6% |
| Oct 23, 2026 Latest | 323K | 155K | 48.0% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
MTB dark pool FAQ
- How much MTB off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 323K MTB shares in publicly disseminated off-exchange trades on Oct 23, 2026; 155K of those shares (48.0%) were marked short or short-exempt.
- Is MTB's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, MTB's short volume ratio of 48.0% is below MTB's 30-day rolling average of 59.1% (z-score -0.89). 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.