MRK short interest
Merck & Co. Inc. · Healthcare · Drug Manufacturers - General · settlement date 2026-09-30
| Shares short | 28,271,750 |
|---|---|
| Change vs prior report | -6,158,962 (-17.9%) |
| Change over six months | +2.0% |
| Days to cover | 2.53 (sector: 3.78) |
| Average daily volume | 11,188,097 |
| Rank in Healthcare | #674 of 922 by days to cover |
MRK short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 28,271,750 | -17.9% | 2.53 | 11,188,097 |
| 2026-09-15 | 34,430,712 | +13.7% | 4.23 | 8,139,823 |
| 2026-08-31 | 30,287,347 | +23.6% | 2.23 | 13,556,043 |
| 2026-08-14 | 24,506,520 | -13.3% | 2.84 | 8,643,326 |
| 2026-07-31 | 28,281,375 | -3.7% | 3.25 | 8,695,853 |
| 2026-07-15 | 29,359,028 | -6.4% | 3.42 | 8,575,599 |
| 2026-06-30 | 31,381,267 | +3.7% | 2.30 | 13,647,853 |
| 2026-06-15 | 30,267,292 | -0.9% | 2.57 | 11,784,643 |
| 2026-05-29 | 30,545,853 | +5.1% | 3.06 | 9,991,704 |
| 2026-05-15 | 29,060,187 | +10.9% | 3.63 | 8,011,358 |
| 2026-04-30 | 26,205,868 | -4.7% | 2.55 | 10,261,130 |
| 2026-04-15 | 27,495,690 | -0.8% | 3.31 | 8,313,273 |
| 2026-03-31 | 27,720,957 | -4.9% | 2.53 | 10,965,147 |
| 2026-03-13 | 29,144,880 | -6.3% | 3.06 | 9,522,427 |
| 2026-02-27 | 31,115,811 | +10.6% | 3.00 | 10,360,814 |
| 2026-02-13 | 28,130,031 | -2.1% | 1.70 | 16,529,127 |
| 2026-01-30 | 28,729,402 | -14.6% | 2.38 | 12,072,510 |
| 2026-01-15 | 33,654,686 | +3.3% | 2.55 | 13,172,764 |
| 2025-12-31 | 32,573,724 | -12.3% | 2.33 | 13,965,417 |
| 2025-12-15 | 37,162,304 | +16.3% | 2.63 | 14,121,374 |
| 2025-11-28 | 31,943,311 | +15.6% | 1.77 | 18,022,575 |
| 2025-11-14 | 27,626,151 | +7.0% | 2.15 | 12,867,044 |
| 2025-10-31 | 25,815,354 | -3.3% | 2.52 | 10,250,522 |
| 2025-10-15 | 26,700,419 | +6.1% | 2.11 | 12,669,726 |
| 2025-09-30 | 25,174,694 | -9.2% | 1.76 | 14,294,134 |
import finzdata as yf
yf.Ticker("MRK").short_interest # every report since 2017
yf.Client().short_interest(["MRK"], start="2018-01-01")Healthcare short interest · MRK price history · Who owns MRK · All short interest