TMUS Dark Pool Activity
TARGET CORP
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 3.6M TMUS shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 1.5M of those shares (41.6%) were marked short or short-exempt, above TMUS's 30-day rolling average of 36.6% (z-score 0.60). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), TMUS's off-exchange short volume ratio ranged from 26.4% to 49.9% and averaged 35.6%; the latest reading is above that 10-session average.
Off-Exchange Volume
3.6M
Short Volume
1.5M
Short Volume Ratio
41.6%
30-Day Average
36.6%
z-score 0.60
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 3.5M | 930K | 26.4% |
| Oct 13, 2026 | 2.2M | 589K | 27.2% |
| Oct 14, 2026 | 2.1M | 754K | 36.1% |
| Oct 15, 2026 | 2.4M | 852K | 35.4% |
| Oct 16, 2026 | 2.1M | 703K | 33.3% |
| Oct 19, 2026 | 1.4M | 512K | 35.7% |
| Oct 20, 2026 | 2.4M | 793K | 33.6% |
| Oct 21, 2026 | 1.9M | 725K | 37.2% |
| Oct 22, 2026 | 2.0M | 976K | 49.9% |
| Oct 23, 2026 Latest | 3.6M | 1.5M | 41.6% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
TMUS dark pool FAQ
- How much TMUS off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 3.6M TMUS shares in publicly disseminated off-exchange trades on Oct 23, 2026; 1.5M of those shares (41.6%) were marked short or short-exempt.
- Is TMUS's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, TMUS's short volume ratio of 41.6% is above TMUS's 30-day rolling average of 36.6% (z-score 0.60). 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.