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Contract OI history

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Jun 17, 2027 EXPIRATION

MA $550.00 Put

MA270617P00550000

Latest saved OI391Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MA $550.00 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. 3931960 2026-10-02: 379 OI2026-10-05: 389 OI2026-10-06: 393 OI2026-10-07: 392 OI2026-10-08: 392 OI2026-10-09: 391 OI2026-10-13: 393 OI2026-10-14: 393 OI2026-10-15: 393 OI2026-10-16: 393 OI2026-10-21: 392 OI2026-10-23: 391 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, 2026Viewing391-1
Oct 21, 2026392-1
Oct 16, 20263930
Oct 15, 20263930
Oct 14, 20263930
Oct 13, 2026393+2
Oct 09, 2026391-1
Oct 08, 20263920
Oct 07, 2026392-1
Oct 06, 2026393+4
Oct 05, 2026389+10
Oct 02, 2026379No prior observation