ABT Dark Pool Activity
Abbott Laboratories
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 4.2M ABT shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 1.5M of those shares (36.5%) were marked short or short-exempt, below ABT's 30-day rolling average of 43.7% (z-score -0.77). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), ABT's off-exchange short volume ratio ranged from 27.9% to 54.0% and averaged 41.0%; the latest reading is below that 10-session average.
Off-Exchange Volume
4.2M
Short Volume
1.5M
Short Volume Ratio
36.5%
30-Day Average
43.7%
z-score -0.77
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 2.4M | 1.0M | 43.0% |
| Oct 13, 2026 | 3.8M | 1.3M | 34.7% |
| Oct 14, 2026 | 2.5M | 987K | 40.1% |
| Oct 15, 2026 | 3.8M | 1.5M | 40.3% |
| Oct 16, 2026 | 3.3M | 1.2M | 34.8% |
| Oct 19, 2026 | 3.3M | 929K | 27.9% |
| Oct 20, 2026 | 5.1M | 2.7M | 54.0% |
| Oct 21, 2026 | 8.9M | 4.5M | 50.3% |
| Oct 22, 2026 | 4.4M | 2.1M | 48.4% |
| Oct 23, 2026 Latest | 4.2M | 1.5M | 36.5% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
ABT dark pool FAQ
- How much ABT off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 4.2M ABT shares in publicly disseminated off-exchange trades on Oct 23, 2026; 1.5M of those shares (36.5%) were marked short or short-exempt.
- Is ABT's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, ABT's short volume ratio of 36.5% is below ABT's 30-day rolling average of 43.7% (z-score -0.77). 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.