MCO Dark Pool Activity
Moodys Corp /De/
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 329K MCO shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 270K of those shares (82.1%) were marked short or short-exempt, above MCO's 30-day rolling average of 64.2% (z-score 1.55). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), MCO's off-exchange short volume ratio ranged from 66.2% to 82.1% and averaged 73.9%; the latest reading is above that 10-session average.
Off-Exchange Volume
329K
Short Volume
270K
Short Volume Ratio
82.1%
30-Day Average
64.2%
z-score 1.55
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 195K | 130K | 66.8% |
| Oct 13, 2026 | 242K | 186K | 76.9% |
| Oct 14, 2026 | 343K | 253K | 73.7% |
| Oct 15, 2026 | 457K | 315K | 68.9% |
| Oct 16, 2026 | 275K | 182K | 66.2% |
| Oct 19, 2026 | 227K | 176K | 77.8% |
| Oct 20, 2026 | 641K | 464K | 72.4% |
| Oct 21, 2026 | 614K | 460K | 74.9% |
| Oct 22, 2026 | 453K | 360K | 79.5% |
| Oct 23, 2026 Latest | 329K | 270K | 82.1% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
MCO dark pool FAQ
- How much MCO off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 329K MCO shares in publicly disseminated off-exchange trades on Oct 23, 2026; 270K of those shares (82.1%) were marked short or short-exempt.
- Is MCO's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, MCO's short volume ratio of 82.1% is above MCO's 30-day rolling average of 64.2% (z-score 1.55). 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.