WCC Dark Pool Activity
WESCO International, Inc.
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 263K WCC shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 142K of those shares (54.1%) were marked short or short-exempt, above WCC's 30-day rolling average of 43.8% (z-score 1.03). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), WCC's off-exchange short volume ratio ranged from 39.5% to 61.6% and averaged 49.9%; the latest reading is above that 10-session average.
Off-Exchange Volume
263K
Short Volume
142K
Short Volume Ratio
54.1%
30-Day Average
43.8%
z-score 1.03
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 167K | 86K | 51.4% |
| Oct 13, 2026 | 356K | 150K | 42.2% |
| Oct 14, 2026 | 355K | 177K | 49.9% |
| Oct 15, 2026 | 411K | 202K | 49.2% |
| Oct 16, 2026 | 223K | 137K | 61.6% |
| Oct 19, 2026 | 164K | 75K | 45.7% |
| Oct 20, 2026 | 190K | 111K | 58.3% |
| Oct 21, 2026 | 175K | 83K | 47.4% |
| Oct 22, 2026 | 586K | 231K | 39.5% |
| Oct 23, 2026 Latest | 263K | 142K | 54.1% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
WCC dark pool FAQ
- How much WCC off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 263K WCC shares in publicly disseminated off-exchange trades on Oct 23, 2026; 142K of those shares (54.1%) were marked short or short-exempt.
- Is WCC's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, WCC's short volume ratio of 54.1% is above WCC's 30-day rolling average of 43.8% (z-score 1.03). 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.