AER Dark Pool Activity
AerCap Holdings N.V.
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 387K AER shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 137K of those shares (35.4%) were marked short or short-exempt, below AER's 30-day rolling average of 48.0% (z-score -1.08). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), AER's off-exchange short volume ratio ranged from 29.0% to 61.1% and averaged 39.7%; the latest reading is below that 10-session average.
Off-Exchange Volume
387K
Short Volume
137K
Short Volume Ratio
35.4%
30-Day Average
48.0%
z-score -1.08
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 268K | 101K | 37.9% |
| Oct 13, 2026 | 248K | 99K | 40.0% |
| Oct 14, 2026 | 330K | 109K | 33.0% |
| Oct 15, 2026 | 263K | 125K | 47.5% |
| Oct 16, 2026 | 222K | 66K | 29.6% |
| Oct 19, 2026 | 206K | 79K | 38.2% |
| Oct 20, 2026 | 256K | 74K | 29.0% |
| Oct 21, 2026 | 472K | 288K | 61.1% |
| Oct 22, 2026 | 559K | 255K | 45.5% |
| Oct 23, 2026 Latest | 387K | 137K | 35.4% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
AER dark pool FAQ
- How much AER off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 387K AER shares in publicly disseminated off-exchange trades on Oct 23, 2026; 137K of those shares (35.4%) were marked short or short-exempt.
- Is AER's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, AER's short volume ratio of 35.4% is below AER's 30-day rolling average of 48.0% (z-score -1.08). 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.