AN Dark Pool Activity
AutoNation, Inc.
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 177K AN shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 105K of those shares (59.5%) were marked short or short-exempt, below AN's 30-day rolling average of 66.4% (z-score -0.65). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), AN's off-exchange short volume ratio ranged from 47.2% to 73.1% and averaged 62.1%; the latest reading is below that 10-session average.
Off-Exchange Volume
177K
Short Volume
105K
Short Volume Ratio
59.5%
30-Day Average
66.4%
z-score -0.65
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 176K | 114K | 64.5% |
| Oct 13, 2026 | 200K | 109K | 54.3% |
| Oct 14, 2026 | 152K | 101K | 66.3% |
| Oct 15, 2026 | 254K | 120K | 47.2% |
| Oct 16, 2026 | 193K | 116K | 60.2% |
| Oct 19, 2026 | 207K | 151K | 73.1% |
| Oct 20, 2026 | 149K | 106K | 71.4% |
| Oct 21, 2026 | 281K | 165K | 58.9% |
| Oct 22, 2026 | 259K | 170K | 65.7% |
| Oct 23, 2026 Latest | 177K | 105K | 59.5% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
AN dark pool FAQ
- How much AN off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 177K AN shares in publicly disseminated off-exchange trades on Oct 23, 2026; 105K of those shares (59.5%) were marked short or short-exempt.
- Is AN's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, AN's short volume ratio of 59.5% is below AN's 30-day rolling average of 66.4% (z-score -0.65). 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.