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Contract OI history

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Nov 20, 2026 EXPIRATION

ACA $150.00 Call

ACA261120C00150000

Latest saved OI358Oct 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
ACA $150.00 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. 3581790 2026-10-02: 150 OI2026-10-05: 150 OI2026-10-06: 150 OI2026-10-07: 208 OI2026-10-08: 208 OI2026-10-09: 208 OI2026-10-13: 347 OI2026-10-14: 357 OI2026-10-16: 357 OI2026-10-20: 357 OI2026-10-23: 358 OI Oct 02, 2026Oct 23, 2026

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

ACA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing358+1
Oct 20, 20263570
Oct 16, 20263570
Oct 14, 2026357+10
Oct 13, 2026347+139
Oct 09, 20262080
Oct 08, 20262080
Oct 07, 2026208+58
Oct 06, 20261500
Oct 05, 20261500
Oct 02, 2026150No prior observation