RPRX Dark Pool Activity
Royalty Pharma Plc
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 1.3M RPRX shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 707K of those shares (54.2%) were marked short or short-exempt, above RPRX's 30-day rolling average of 43.7% (z-score 1.28). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), RPRX's off-exchange short volume ratio ranged from 32.7% to 55.7% and averaged 48.3%; the latest reading is above that 10-session average.
Off-Exchange Volume
1.3M
Short Volume
707K
Short Volume Ratio
54.2%
30-Day Average
43.7%
z-score 1.28
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 870K | 418K | 48.1% |
| Oct 13, 2026 | 1.1M | 554K | 51.2% |
| Oct 14, 2026 | 1.2M | 403K | 32.7% |
| Oct 15, 2026 | 1.4M | 737K | 52.2% |
| Oct 16, 2026 | 2.0M | 905K | 44.8% |
| Oct 19, 2026 | 969K | 431K | 44.5% |
| Oct 20, 2026 | 1.0M | 566K | 55.7% |
| Oct 21, 2026 | 1.3M | 558K | 44.4% |
| Oct 22, 2026 | 1.1M | 607K | 54.8% |
| Oct 23, 2026 Latest | 1.3M | 707K | 54.2% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
RPRX dark pool FAQ
- How much RPRX off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 1.3M RPRX shares in publicly disseminated off-exchange trades on Oct 23, 2026; 707K of those shares (54.2%) were marked short or short-exempt.
- Is RPRX's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, RPRX's short volume ratio of 54.2% is above RPRX's 30-day rolling average of 43.7% (z-score 1.28). 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.