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Contract OI history

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Oct 23, 2026 EXPIRATION

FIS $35.00 Put

FIS261023P00035000

Latest saved OI351Oct 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
FIS $35.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3511750 2026-10-02: 21 OI2026-10-05: 21 OI2026-10-06: 21 OI2026-10-07: 21 OI2026-10-08: 21 OI2026-10-09: 21 OI2026-10-13: 23 OI2026-10-14: 23 OI2026-10-15: 23 OI2026-10-16: 23 OI2026-10-21: 344 OI2026-10-23: 351 OI Oct 02, 2026Oct 23, 2026

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

FIS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing351+7
Oct 21, 2026344+321
Oct 16, 2026230
Oct 15, 2026230
Oct 14, 2026230
Oct 13, 202623+2
Oct 09, 2026210
Oct 08, 2026210
Oct 07, 2026210
Oct 06, 2026210
Oct 05, 2026210
Oct 02, 202621No prior observation