TDY Dark Pool Activity
Teledyne Technologies Inc
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 148K TDY shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 83K of those shares (56.2%) were marked short or short-exempt, above TDY's 30-day rolling average of 48.2% (z-score 1.32). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), TDY's off-exchange short volume ratio ranged from 42.6% to 57.7% and averaged 52.4%; the latest reading is above that 10-session average.
Off-Exchange Volume
148K
Short Volume
83K
Short Volume Ratio
56.2%
30-Day Average
48.2%
z-score 1.32
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 68K | 36K | 53.4% |
| Oct 13, 2026 | 87K | 49K | 56.1% |
| Oct 14, 2026 | 92K | 50K | 54.3% |
| Oct 15, 2026 | 97K | 56K | 57.7% |
| Oct 16, 2026 | 100K | 57K | 57.1% |
| Oct 19, 2026 | 126K | 69K | 54.6% |
| Oct 20, 2026 | 330K | 157K | 47.7% |
| Oct 21, 2026 | 334K | 149K | 44.7% |
| Oct 22, 2026 | 185K | 79K | 42.6% |
| Oct 23, 2026 Latest | 148K | 83K | 56.2% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
TDY dark pool FAQ
- How much TDY off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 148K TDY shares in publicly disseminated off-exchange trades on Oct 23, 2026; 83K of those shares (56.2%) were marked short or short-exempt.
- Is TDY's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, TDY's short volume ratio of 56.2% is above TDY's 30-day rolling average of 48.2% (z-score 1.32). 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.