OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

CAT $660.00 Put

CAT270319P00660000

Latest saved OI557Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $660.00 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. 5572780 2026-10-02: 375 OI2026-10-05: 375 OI2026-10-06: 381 OI2026-10-07: 391 OI2026-10-08: 391 OI2026-10-09: 412 OI2026-10-13: 431 OI2026-10-14: 431 OI2026-10-15: 434 OI2026-10-16: 443 OI2026-10-21: 552 OI2026-10-23: 557 OI Oct 02, 2026Oct 23, 2026

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

CAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing557+5
Oct 21, 2026552+109
Oct 16, 2026443+9
Oct 15, 2026434+3
Oct 14, 20264310
Oct 13, 2026431+19
Oct 09, 2026412+21
Oct 08, 20263910
Oct 07, 2026391+10
Oct 06, 2026381+6
Oct 05, 20263750
Oct 02, 2026375No prior observation