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Contract OI history

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Nov 06, 2026 EXPIRATION

PFE $27.50 Call

PFE261106C00027500

Latest saved OI445Oct 23, 2026
Last change-7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $27.50 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. 4522260 2026-10-02: 89 OI2026-10-05: 134 OI2026-10-06: 207 OI2026-10-07: 284 OI2026-10-08: 284 OI2026-10-09: 354 OI2026-10-13: 374 OI2026-10-14: 374 OI2026-10-15: 372 OI2026-10-16: 362 OI2026-10-21: 452 OI2026-10-23: 445 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, 2026Viewing445-7
Oct 21, 2026452+90
Oct 16, 2026362-10
Oct 15, 2026372-2
Oct 14, 20263740
Oct 13, 2026374+20
Oct 09, 2026354+70
Oct 08, 20262840
Oct 07, 2026284+77
Oct 06, 2026207+73
Oct 05, 2026134+45
Oct 02, 202689No prior observation