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Contract OI history

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Jan 15, 2027 EXPIRATION

CI $220.00 Put

CI270115P00220000

Latest saved OI236Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CI $220.00 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. 2381190 2026-10-02: 237 OI2026-10-05: 237 OI2026-10-06: 237 OI2026-10-07: 237 OI2026-10-08: 237 OI2026-10-09: 238 OI2026-10-13: 229 OI2026-10-14: 229 OI2026-10-15: 235 OI2026-10-16: 233 OI2026-10-21: 237 OI2026-10-23: 236 OI Oct 02, 2026Oct 23, 2026

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

CI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing236-1
Oct 21, 2026237+4
Oct 16, 2026233-2
Oct 15, 2026235+6
Oct 14, 20262290
Oct 13, 2026229-9
Oct 09, 2026238+1
Oct 08, 20262370
Oct 07, 20262370
Oct 06, 20262370
Oct 05, 20262370
Oct 02, 2026237No prior observation