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Contract OI history

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Jun 17, 2027 EXPIRATION

PFE $28.00 Call

PFE270617C00028000

Latest saved OI393Oct 23, 2026
Last change+214vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $28.00 call open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 3931960 2026-10-15: 0 OI2026-10-16: 11 OI2026-10-21: 179 OI2026-10-23: 393 OI Oct 15, 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, 2026Viewing393+214
Oct 21, 2026179+168
Oct 16, 202611+11
Oct 15, 20260No prior observation