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Contract OI history

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Dec 18, 2026 EXPIRATION

PFE $28.00 Call

PFE261218C00028000

Latest saved OI15,308Oct 23, 2026
Last change+61vs 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. 15,3087,6540 2026-10-02: 12,887 OI2026-10-05: 13,169 OI2026-10-06: 14,210 OI2026-10-07: 14,042 OI2026-10-08: 14,042 OI2026-10-09: 14,594 OI2026-10-13: 14,944 OI2026-10-14: 14,944 OI2026-10-15: 14,997 OI2026-10-16: 14,998 OI2026-10-21: 15,247 OI2026-10-23: 15,308 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, 2026Viewing15,308+61
Oct 21, 202615,247+249
Oct 16, 202614,998+1
Oct 15, 202614,997+53
Oct 14, 202614,9440
Oct 13, 202614,944+350
Oct 09, 202614,594+552
Oct 08, 202614,0420
Oct 07, 202614,042-168
Oct 06, 202614,210+1,041
Oct 05, 202613,169+282
Oct 02, 202612,887No prior observation