PFE
Pfizer Inc.
stockNYSE
Market OpenOct 7, 2026 10:59:18 AM EDT
28.02USD+1.909%(+0.52)6,020,594
28.02Bid28.03Ask0.01SpreadPre-marketOct 7, 2026 9:28:30 AM EDT
27.58USD+0.291%(+0.08)
As of 2026-09-15, there were 155,202,257 shares short with a short interest of 2.73%.
PFE Short Interest - Official
Short Interest
PFE Short Position Change - Official
Short Position Change
PFE Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 2.73 | 155,202,257 | 4.90 | +3,664,367 | +2.42 | 5,699,673,589 | 5,691,808,039 |
| 2026-08-31 | 2.66 | 151,537,890 | 4.33 | +2,266,758 | +1.52 | 5,699,673,589 | 5,691,808,039 |
| 2026-08-14 | 2.62 | 149,271,132 | 3.53 | -12,207,095 | -7.56 | 5,699,673,589 | 5,691,808,039 |
| 2026-07-31 | 2.84 | 161,478,227 | 4.18 | -2,342,212 | -1.43 | 5,699,444,169 | 5,691,578,936 |
| 2026-07-15 | 2.88 | 163,820,439 | 3.83 | +242,322 | +0.15 | 5,699,444,169 | 5,691,578,936 |
| 2026-06-30 | 2.87 | 163,578,117 | 2.69 | +1,502,394 | +0.93 | 5,699,444,169 | 5,691,692,925 |
| 2026-06-15 | 2.85 | 162,075,723 | 4.60 | +4,616,139 | +2.93 | 5,699,444,169 | 5,691,692,925 |
| 2026-05-15 | 2.77 | 157,459,584 | 4.12 | +17,142,999 | +12.22 | 5,699,444,169 | 5,691,749,919 |
| 2026-04-30 | 2.47 | 140,316,585 | 4.01 | +6,902,533 | +5.17 | 5,688,356,129 | 5,675,928,135 |
| 2026-04-15 | 2.35 | 133,414,052 | 3.99 | +948,355 | +0.72 | 5,688,356,129 | 5,675,928,135 |
| 2026-03-31 | 2.33 | 132,465,697 | 3.08 | +1,055,815 | +0.80 | 5,688,356,129 | 5,675,928,135 |
| 2026-03-13 | 2.32 | 131,409,882 | 3.25 | -11,436,781 | -8.01 | 5,686,267,431 | 5,675,928,135 |
| 2026-02-27 | 2.52 | 142,846,663 | 4.07 | -3,532,384 | -2.41 | 5,685,707,552 | 5,675,928,135 |
| 2026-02-13 | 2.58 | 146,379,047 | 2.52 | +3,342,985 | +2.34 | 5,685,707,552 | 5,675,928,135 |
| 2026-01-30 | 2.52 | 143,036,062 | 2.78 | +13,234,469 | +10.20 | 5,685,707,552 | 5,675,928,135 |
| 2026-01-15 | 2.29 | 129,801,593 | 2.73 | -218,731 | -0.17 | 5,685,707,552 | 5,675,928,135 |
| 2025-12-31 | 2.29 | 130,020,324 | 2.74 | -9,465,769 | -6.79 | 5,685,707,552 | 5,675,928,135 |
| 2025-12-15 | 2.46 | 139,486,093 | 2.97 | +413,466 | +0.30 | 5,685,707,552 | 5,675,928,135 |
| 2025-11-28 | 2.45 | 139,072,627 | 2.50 | +8,412,264 | +6.44 | 5,685,707,552 | 5,675,928,135 |
| 2025-11-14 | 2.30 | 130,660,363 | 1.04 | +4,072,613 | +3.22 | 5,685,707,552 | 5,676,098,706 |
| 2025-10-31 | 2.23 | 126,587,750 | 2.13 | +9,772,179 | +8.37 | 5,685,550,500 | 5,675,828,209 |
| 2025-10-15 | 2.06 | 116,815,571 | 1.84 | +2,861,227 | +2.51 | 5,685,550,500 | 5,675,828,209 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.