IWM Dark Pool Activity
iShares Russell 2000 Index Fund
Data as of Sep 11, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Sep 11, 2026, FINRA reported 10.8M IWM shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 6.1M of those shares (56.0%) were marked short or short-exempt, below IWM's 30-day rolling average of 63.1% (z-score -0.70).
Off-Exchange Volume
10.8M
Short Volume
6.1M
Short Volume Ratio
56.0%
30-Day Average
63.1%
z-score -0.70
IWM dark pool FAQ
- How much IWM off-exchange volume did FINRA report on Sep 11, 2026?
- FINRA's daily short sale volume file reported 10.8M IWM shares in publicly disseminated off-exchange trades on Sep 11, 2026; 6.1M of those shares (56.0%) were marked short or short-exempt.
- Is IWM's dark pool short volume ratio unusual right now?
- As of Sep 11, 2026, IWM's short volume ratio of 56.0% is below IWM's 30-day rolling average of 63.1% (z-score -0.70). 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.