OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BOX $40.00 Put

BOX270115P00040000

Latest saved OI469Oct 23, 2026
Last change+349vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BOX $40.00 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. 4692340 2026-10-02: 1 OI2026-10-05: 1 OI2026-10-06: 1 OI2026-10-07: 1 OI2026-10-08: 1 OI2026-10-13: 1 OI2026-10-14: 1 OI2026-10-15: 2 OI2026-10-16: 32 OI2026-10-20: 120 OI2026-10-23: 469 OI Oct 02, 2026Oct 23, 2026

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

BOX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing469+349
Oct 20, 2026120+88
Oct 16, 202632+30
Oct 15, 20262+1
Oct 14, 202610
Oct 13, 202610
Oct 08, 202610
Oct 07, 202610
Oct 06, 202610
Oct 05, 202610
Oct 02, 20261No prior observation