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Contract OI history

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Dec 18, 2026 EXPIRATION

BOX $40.00 Call

BOX261218C00040000

Latest saved OI191Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BOX $40.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 191950 2026-10-02: 50 OI2026-10-05: 51 OI2026-10-06: 58 OI2026-10-07: 58 OI2026-10-08: 63 OI2026-10-13: 68 OI2026-10-14: 77 OI2026-10-15: 77 OI2026-10-16: 77 OI2026-10-20: 190 OI2026-10-23: 191 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, 2026Viewing191+1
Oct 20, 2026190+113
Oct 16, 2026770
Oct 15, 2026770
Oct 14, 202677+9
Oct 13, 202668+5
Oct 08, 202663+5
Oct 07, 2026580
Oct 06, 202658+7
Oct 05, 202651+1
Oct 02, 202650No prior observation