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Contract OI history

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Nov 13, 2026 EXPIRATION

PFE $28.00 Call

PFE261113C00028000

Latest saved OI454Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $28.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4562280 2026-10-02: 2 OI2026-10-05: 21 OI2026-10-06: 127 OI2026-10-07: 188 OI2026-10-08: 188 OI2026-10-09: 199 OI2026-10-13: 201 OI2026-10-14: 201 OI2026-10-15: 147 OI2026-10-16: 215 OI2026-10-21: 456 OI2026-10-23: 454 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

PFE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing454-2
Oct 21, 2026456+241
Oct 16, 2026215+68
Oct 15, 2026147-54
Oct 14, 20262010
Oct 13, 2026201+2
Oct 09, 2026199+11
Oct 08, 20261880
Oct 07, 2026188+61
Oct 06, 2026127+106
Oct 05, 202621+19
Oct 02, 20262No prior observation