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Contract OI history

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Nov 20, 2026 EXPIRATION

PRCH $17.50 Put

PRCH261120P00017500

Latest saved OI5,407Oct 23, 2026
Last change+74vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PRCH $17.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 5,4072,7030 2026-10-08: 5,317 OI2026-10-09: 5,317 OI2026-10-12: 5,317 OI2026-10-14: 5,321 OI2026-10-16: 5,327 OI2026-10-20: 5,333 OI2026-10-23: 5,407 OI Oct 08, 2026Oct 23, 2026

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

PRCH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5,407+74
Oct 20, 20265,333+6
Oct 16, 20265,327+6
Oct 14, 20265,321+4
Oct 12, 20265,3170
Oct 09, 20265,3170
Oct 08, 20265,317No prior observation