MSA Dark Pool Activity
MSA Safety Incorporated
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 110K MSA shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 90K of those shares (81.4%) were marked short or short-exempt, above MSA's 30-day rolling average of 69.5% (z-score 1.41). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), MSA's off-exchange short volume ratio ranged from 56.1% to 88.7% and averaged 71.9%; the latest reading is above that 10-session average.
Off-Exchange Volume
110K
Short Volume
90K
Short Volume Ratio
81.4%
30-Day Average
69.5%
z-score 1.41
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 113K | 100K | 88.7% |
| Oct 13, 2026 | 56K | 46K | 82.7% |
| Oct 14, 2026 | 65K | 49K | 74.8% |
| Oct 15, 2026 | 84K | 55K | 65.6% |
| Oct 16, 2026 | 73K | 41K | 56.1% |
| Oct 19, 2026 | 60K | 38K | 63.1% |
| Oct 20, 2026 | 57K | 41K | 71.7% |
| Oct 21, 2026 | 63K | 43K | 67.3% |
| Oct 22, 2026 | 95K | 64K | 67.3% |
| Oct 23, 2026 Latest | 110K | 90K | 81.4% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
MSA dark pool FAQ
- How much MSA off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 110K MSA shares in publicly disseminated off-exchange trades on Oct 23, 2026; 90K of those shares (81.4%) were marked short or short-exempt.
- Is MSA's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, MSA's short volume ratio of 81.4% is above MSA's 30-day rolling average of 69.5% (z-score 1.41). 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.