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Contract OI history

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Apr 16, 2027 EXPIRATION

ACT $45.00 Put

ACT270416P00045000

Latest saved OI60Oct 23, 2026
Last change+10vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ACT $45.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 60300 2026-10-08: 50 OI2026-10-09: 50 OI2026-10-13: 50 OI2026-10-14: 50 OI2026-10-16: 50 OI2026-10-20: 50 OI2026-10-23: 60 OI Oct 08, 2026Oct 23, 2026

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

ACT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing60+10
Oct 20, 2026500
Oct 16, 2026500
Oct 14, 2026500
Oct 13, 2026500
Oct 09, 2026500
Oct 08, 202650No prior observation