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Contract OI history

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Nov 20, 2026 EXPIRATION

CHPT $9.00 Put

CHPT261120P00009000

Latest saved OI231Oct 23, 2026
Last change-7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CHPT $9.00 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. 2391190 2026-10-02: 194 OI2026-10-05: 179 OI2026-10-06: 181 OI2026-10-07: 177 OI2026-10-08: 177 OI2026-10-09: 195 OI2026-10-13: 206 OI2026-10-14: 206 OI2026-10-15: 236 OI2026-10-16: 239 OI2026-10-21: 238 OI2026-10-23: 231 OI Oct 02, 2026Oct 23, 2026

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

CHPT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing231-7
Oct 21, 2026238-1
Oct 16, 2026239+3
Oct 15, 2026236+30
Oct 14, 20262060
Oct 13, 2026206+11
Oct 09, 2026195+18
Oct 08, 20261770
Oct 07, 2026177-4
Oct 06, 2026181+2
Oct 05, 2026179-15
Oct 02, 2026194No prior observation