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Contract OI history

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Nov 20, 2026 EXPIRATION

ACGL $100.00 Put

ACGL261120P00100000

Latest saved OI125Oct 23, 2026
Last change-19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ACGL $100.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 149740 2026-10-09: 146 OI2026-10-13: 149 OI2026-10-14: 149 OI2026-10-15: 146 OI2026-10-16: 146 OI2026-10-21: 144 OI2026-10-23: 125 OI Oct 09, 2026Oct 23, 2026

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

ACGL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing125-19
Oct 21, 2026144-2
Oct 16, 20261460
Oct 15, 2026146-3
Oct 14, 20261490
Oct 13, 2026149+3
Oct 09, 2026146No prior observation