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Contract OI history

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Oct 30, 2026 EXPIRATION

F $13.50 Put

F261030P00013500

Latest saved OI251Oct 23, 2026
Last change+66vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
F $13.50 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. 2611300 2026-10-02: 257 OI2026-10-05: 261 OI2026-10-06: 230 OI2026-10-07: 233 OI2026-10-08: 233 OI2026-10-09: 236 OI2026-10-13: 235 OI2026-10-14: 235 OI2026-10-15: 218 OI2026-10-16: 216 OI2026-10-21: 185 OI2026-10-23: 251 OI Oct 02, 2026Oct 23, 2026

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

F contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing251+66
Oct 21, 2026185-31
Oct 16, 2026216-2
Oct 15, 2026218-17
Oct 14, 20262350
Oct 13, 2026235-1
Oct 09, 2026236+3
Oct 08, 20262330
Oct 07, 2026233+3
Oct 06, 2026230-31
Oct 05, 2026261+4
Oct 02, 2026257No prior observation