OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CLS $300.00 Put

CLS270115P00300000

Latest saved OI423Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CLS $300.00 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. 4232110 2026-10-02: 395 OI2026-10-05: 393 OI2026-10-06: 397 OI2026-10-07: 399 OI2026-10-08: 407 OI2026-10-09: 408 OI2026-10-13: 415 OI2026-10-14: 415 OI2026-10-15: 420 OI2026-10-16: 420 OI2026-10-21: 410 OI2026-10-23: 423 OI Oct 02, 2026Oct 23, 2026

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

CLS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing423+13
Oct 21, 2026410-10
Oct 16, 20264200
Oct 15, 2026420+5
Oct 14, 20264150
Oct 13, 2026415+7
Oct 09, 2026408+1
Oct 08, 2026407+8
Oct 07, 2026399+2
Oct 06, 2026397+4
Oct 05, 2026393-2
Oct 02, 2026395No prior observation