OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

CNK $50.00 Put

CNK280121P00050000

Latest saved OI207Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CNK $50.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2071030 2026-10-02: 194 OI2026-10-05: 194 OI2026-10-06: 194 OI2026-10-07: 194 OI2026-10-08: 194 OI2026-10-09: 194 OI2026-10-13: 194 OI2026-10-14: 194 OI2026-10-16: 194 OI2026-10-20: 207 OI2026-10-23: 207 OI Oct 02, 2026Oct 23, 2026

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

CNK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2070
Oct 20, 2026207+13
Oct 16, 20261940
Oct 14, 20261940
Oct 13, 20261940
Oct 09, 20261940
Oct 08, 20261940
Oct 07, 20261940
Oct 06, 20261940
Oct 05, 20261940
Oct 02, 2026194No prior observation