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Contract OI history

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Dec 18, 2026 EXPIRATION

MA $555.00 Put

MA261218P00555000

Latest saved OI89Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MA $555.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 89440 2026-10-02: 28 OI2026-10-05: 78 OI2026-10-06: 79 OI2026-10-07: 80 OI2026-10-08: 80 OI2026-10-09: 80 OI2026-10-13: 82 OI2026-10-14: 82 OI2026-10-15: 83 OI2026-10-16: 84 OI2026-10-21: 87 OI2026-10-23: 89 OI Oct 02, 2026Oct 23, 2026

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

MA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing89+2
Oct 21, 202687+3
Oct 16, 202684+1
Oct 15, 202683+1
Oct 14, 2026820
Oct 13, 202682+2
Oct 09, 2026800
Oct 08, 2026800
Oct 07, 202680+1
Oct 06, 202679+1
Oct 05, 202678+50
Oct 02, 202628No prior observation