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Contract OI history

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May 21, 2027 EXPIRATION

FPS $27.50 Put

FPS270521P00027500

Latest saved OI221Oct 23, 2026
Last change+26vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
FPS $27.50 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. 2211100 2026-10-02: 164 OI2026-10-05: 168 OI2026-10-06: 174 OI2026-10-07: 174 OI2026-10-08: 174 OI2026-10-09: 174 OI2026-10-13: 184 OI2026-10-14: 184 OI2026-10-15: 184 OI2026-10-16: 195 OI2026-10-21: 195 OI2026-10-23: 221 OI Oct 02, 2026Oct 23, 2026

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

FPS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing221+26
Oct 21, 20261950
Oct 16, 2026195+11
Oct 15, 20261840
Oct 14, 20261840
Oct 13, 2026184+10
Oct 09, 20261740
Oct 08, 20261740
Oct 07, 20261740
Oct 06, 2026174+6
Oct 05, 2026168+4
Oct 02, 2026164No prior observation