AMZN Dark Pool Activity
Amazon.com Inc
Data as of Oct 26, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 26, 2026, FINRA reported 13.5M AMZN shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 5.4M of those shares (39.7%) were marked short or short-exempt, above AMZN's 30-day rolling average of 31.6% (z-score 1.35). Over the last 10 FINRA sessions (Oct 13, 2026 – Oct 26, 2026), AMZN's off-exchange short volume ratio ranged from 27.4% to 48.4% and averaged 34.4%; the latest reading is above that 10-session average.
Off-Exchange Volume
13.5M
Short Volume
5.4M
Short Volume Ratio
39.7%
30-Day Average
31.6%
z-score 1.35
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 13, 2026 | 10.0M | 2.9M | 28.5% |
| Oct 14, 2026 | 13.1M | 4.2M | 32.1% |
| Oct 15, 2026 | 13.7M | 4.0M | 29.3% |
| Oct 16, 2026 | 15.1M | 4.1M | 27.4% |
| Oct 19, 2026 | 24.5M | 8.5M | 34.6% |
| Oct 20, 2026 | 13.1M | 6.3M | 48.4% |
| Oct 21, 2026 | 12.8M | 4.8M | 37.4% |
| Oct 22, 2026 | 20.8M | 7.5M | 36.1% |
| Oct 23, 2026 | 10.7M | 3.2M | 30.4% |
| Oct 26, 2026 Latest | 13.5M | 5.4M | 39.7% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
AMZN dark pool FAQ
- How much AMZN off-exchange volume did FINRA report on Oct 26, 2026?
- FINRA's daily short sale volume file reported 13.5M AMZN shares in publicly disseminated off-exchange trades on Oct 26, 2026; 5.4M of those shares (39.7%) were marked short or short-exempt.
- Is AMZN's dark pool short volume ratio unusual right now?
- As of Oct 26, 2026, AMZN's short volume ratio of 39.7% is above AMZN's 30-day rolling average of 31.6% (z-score 1.35). 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.