CART Dark Pool Activity
Maplebear Inc.
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 5.5M CART shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 3.3M of those shares (60.6%) were marked short or short-exempt, below CART's 30-day rolling average of 64.6% (z-score -0.41). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), CART's off-exchange short volume ratio ranged from 54.5% to 76.7% and averaged 66.0%; the latest reading is below that 10-session average.
Off-Exchange Volume
5.5M
Short Volume
3.3M
Short Volume Ratio
60.6%
30-Day Average
64.6%
z-score -0.41
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 764K | 587K | 76.7% |
| Oct 13, 2026 | 1.3M | 841K | 63.8% |
| Oct 14, 2026 | 1.2M | 640K | 54.5% |
| Oct 15, 2026 | 1.5M | 973K | 62.8% |
| Oct 16, 2026 | 1.3M | 869K | 68.2% |
| Oct 19, 2026 | 833K | 625K | 75.0% |
| Oct 20, 2026 | 995K | 580K | 58.3% |
| Oct 21, 2026 | 1.1M | 800K | 74.7% |
| Oct 22, 2026 | 1.2M | 752K | 64.9% |
| Oct 23, 2026 Latest | 5.5M | 3.3M | 60.6% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
CART dark pool FAQ
- How much CART off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 5.5M CART shares in publicly disseminated off-exchange trades on Oct 23, 2026; 3.3M of those shares (60.6%) were marked short or short-exempt.
- Is CART's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, CART's short volume ratio of 60.6% is below CART's 30-day rolling average of 64.6% (z-score -0.41). 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.