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Contract OI history

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Nov 20, 2026 EXPIRATION

ACB $4.00 Put

ACB261120P00004000

Latest saved OI359Oct 20, 2026
Last change+12vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ACB $4.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 3591790 2026-10-09: 232 OI2026-10-13: 270 OI2026-10-14: 283 OI2026-10-15: 345 OI2026-10-16: 347 OI2026-10-20: 359 OI Oct 09, 2026Oct 20, 2026

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

ACB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing359+12
Oct 16, 2026347+2
Oct 15, 2026345+62
Oct 14, 2026283+13
Oct 13, 2026270+38
Oct 09, 2026232No prior observation