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Contract OI history

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Nov 20, 2026 EXPIRATION

MA $555.00 Put

MA261120P00555000

Latest saved OI363Oct 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 $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. 3871930 2026-10-02: 246 OI2026-10-05: 325 OI2026-10-06: 325 OI2026-10-07: 344 OI2026-10-08: 344 OI2026-10-09: 383 OI2026-10-13: 387 OI2026-10-14: 387 OI2026-10-15: 385 OI2026-10-16: 352 OI2026-10-21: 362 OI2026-10-23: 363 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, 2026Viewing363+1
Oct 21, 2026362+10
Oct 16, 2026352-33
Oct 15, 2026385-2
Oct 14, 20263870
Oct 13, 2026387+4
Oct 09, 2026383+39
Oct 08, 20263440
Oct 07, 2026344+19
Oct 06, 20263250
Oct 05, 2026325+79
Oct 02, 2026246No prior observation