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Contract OI history

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Sep 17, 2027 EXPIRATION

PCT $4.00 Put

PCT270917P00004000

Latest saved OI408Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PCT $4.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4082040 2026-10-09: 6 OI2026-10-13: 407 OI2026-10-14: 407 OI2026-10-16: 407 OI2026-10-20: 408 OI2026-10-23: 408 OI Oct 09, 2026Oct 23, 2026

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

PCT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4080
Oct 20, 2026408+1
Oct 16, 20264070
Oct 14, 20264070
Oct 13, 2026407+401
Oct 09, 20266No prior observation