C Dark Pool Activity
CITIGROUP INC
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 2.9M C shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 1.0M of those shares (36.3%) were marked short or short-exempt, above C's 30-day rolling average of 32.3% (z-score 0.48). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), C's off-exchange short volume ratio ranged from 28.6% to 40.3% and averaged 36.4%; the latest reading is below that 10-session average.
Off-Exchange Volume
2.9M
Short Volume
1.0M
Short Volume Ratio
36.3%
30-Day Average
32.3%
z-score 0.48
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 3.6M | 1.0M | 28.6% |
| Oct 13, 2026 | 8.6M | 3.2M | 37.3% |
| Oct 14, 2026 | 5.2M | 2.1M | 40.3% |
| Oct 15, 2026 | 4.2M | 1.5M | 36.0% |
| Oct 16, 2026 | 4.2M | 1.7M | 39.8% |
| Oct 19, 2026 | 2.8M | 1.1M | 38.7% |
| Oct 20, 2026 | 2.9M | 1.0M | 35.0% |
| Oct 21, 2026 | 2.0M | 700K | 34.8% |
| Oct 22, 2026 | 2.8M | 1.1M | 37.5% |
| Oct 23, 2026 Latest | 2.9M | 1.0M | 36.3% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
C dark pool FAQ
- How much C off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 2.9M C shares in publicly disseminated off-exchange trades on Oct 23, 2026; 1.0M of those shares (36.3%) were marked short or short-exempt.
- Is C's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, C's short volume ratio of 36.3% is above C's 30-day rolling average of 32.3% (z-score 0.48). 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.