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Contract OI history

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Jan 21, 2028 EXPIRATION

MA $390.00 Put

MA280121P00390000

Latest saved OI147Oct 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 $390.00 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. 147730 2026-10-02: 144 OI2026-10-05: 144 OI2026-10-06: 144 OI2026-10-07: 144 OI2026-10-08: 144 OI2026-10-09: 145 OI2026-10-13: 146 OI2026-10-14: 146 OI2026-10-15: 146 OI2026-10-16: 146 OI2026-10-21: 146 OI2026-10-23: 147 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, 2026Viewing147+1
Oct 21, 20261460
Oct 16, 20261460
Oct 15, 20261460
Oct 14, 20261460
Oct 13, 2026146+1
Oct 09, 2026145+1
Oct 08, 20261440
Oct 07, 20261440
Oct 06, 20261440
Oct 05, 20261440
Oct 02, 2026144No prior observation