STX Dark Pool Activity
Seagate Technology Holdings Plc
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 3.2M STX shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 1.4M of those shares (42.9%) were marked short or short-exempt, below STX's 30-day rolling average of 46.4% (z-score -0.33). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), STX's off-exchange short volume ratio ranged from 28.1% to 45.6% and averaged 34.9%; the latest reading is above that 10-session average.
Off-Exchange Volume
3.2M
Short Volume
1.4M
Short Volume Ratio
42.9%
30-Day Average
46.4%
z-score -0.33
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 2.3M | 772K | 33.2% |
| Oct 13, 2026 | 3.9M | 1.3M | 32.5% |
| Oct 14, 2026 | 2.7M | 971K | 36.4% |
| Oct 15, 2026 | 3.3M | 977K | 29.3% |
| Oct 16, 2026 | 3.4M | 964K | 28.1% |
| Oct 19, 2026 | 2.4M | 731K | 30.8% |
| Oct 20, 2026 | 2.5M | 971K | 38.9% |
| Oct 21, 2026 | 2.5M | 1.1M | 45.6% |
| Oct 22, 2026 | 3.3M | 1.0M | 30.9% |
| Oct 23, 2026 Latest | 3.2M | 1.4M | 42.9% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
STX dark pool FAQ
- How much STX off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 3.2M STX shares in publicly disseminated off-exchange trades on Oct 23, 2026; 1.4M of those shares (42.9%) were marked short or short-exempt.
- Is STX's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, STX's short volume ratio of 42.9% is below STX's 30-day rolling average of 46.4% (z-score -0.33). 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.