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Contract OI history

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Dec 18, 2026 EXPIRATION

FPS $17.50 Put

FPS261218P00017500

Latest saved OI141Oct 23, 2026
Last change+115vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
FPS $17.50 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 141700 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 26 OI2026-10-23: 141 OI Oct 15, 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, 2026Viewing141+115
Oct 21, 202626+26
Oct 16, 202600
Oct 15, 20260No prior observation