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Contract OI history

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Dec 18, 2026 EXPIRATION

BOX $18.00 Put

BOX261218P00018000

Latest saved OI341Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BOX $18.00 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. 3411700 2026-10-02: 341 OI2026-10-05: 341 OI2026-10-06: 341 OI2026-10-07: 341 OI2026-10-08: 341 OI2026-10-13: 341 OI2026-10-14: 341 OI2026-10-15: 341 OI2026-10-16: 341 OI2026-10-20: 341 OI2026-10-23: 341 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, 2026Viewing3410
Oct 20, 20263410
Oct 16, 20263410
Oct 15, 20263410
Oct 14, 20263410
Oct 13, 20263410
Oct 08, 20263410
Oct 07, 20263410
Oct 06, 20263410
Oct 05, 20263410
Oct 02, 2026341No prior observation