MRK US Equity
Merck & Co., Inc.Health Care · Pharmaceutical Preparations · CIK 310158 · FY ends Dec 31$152.55
+3.56 (+2.39%)
USD · as of 2026-08-21 · marketstack
Short interest· FINRA consolidated · settlement 2026-07-31
6 settlement cycles| Shares short | 28.3M |
| % of shares out | 1.1% |
| Days to cover | 3.3 |
| Δ vs 2026-07-15 | -3.7% |
bars = shares short · line = days to cover (own scale)
| Settlement | Shares short | Δ vs prior | Avg daily volume | Days to cover |
|---|
| 2026-07-31 | 28,281,375 | -3.7% | 8,695,853 | 3.3 |
| 2026-07-15 | 29,359,028 | -6.4% | 8,575,599 | 3.4 |
| 2026-06-30 | 31,381,267 | +3.7% | 13,647,853 | 2.3 |
| 2026-06-15 | 30,267,292 | -0.9% | 11,784,643 | 2.6 |
| 2026-05-29 | 30,545,853 | +5.1% | 9,991,704 | 3.1 |
| 2026-05-15 | 29,060,187 | +10.9% | 8,011,358 | 3.6 |
FINRA Rule 4560 · twice monthly, published ~a week later.
Output of a disclosed model — assumptions may be wrong. Research, not investment advice. See the Disclaimer.
