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Contract OI history

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Mar 19, 2027 EXPIRATION

ACGL $100.00 Put

ACGL270319P00100000

Latest saved OI87Oct 23, 2026
Last change+55vs 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. 87430 2026-10-09: 18 OI2026-10-13: 18 OI2026-10-14: 18 OI2026-10-15: 18 OI2026-10-16: 18 OI2026-10-21: 32 OI2026-10-23: 87 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, 2026Viewing87+55
Oct 21, 202632+14
Oct 16, 2026180
Oct 15, 2026180
Oct 14, 2026180
Oct 13, 2026180
Oct 09, 202618No prior observation