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Contract OI history

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Jan 21, 2028 EXPIRATION

MA $520.00 Put

MA280121P00520000

Latest saved OI138Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MA $520.00 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. 138690 2026-10-02: 62 OI2026-10-05: 62 OI2026-10-06: 62 OI2026-10-07: 62 OI2026-10-08: 62 OI2026-10-09: 138 OI2026-10-13: 138 OI2026-10-14: 138 OI2026-10-15: 138 OI2026-10-16: 138 OI2026-10-21: 138 OI2026-10-23: 138 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, 2026Viewing1380
Oct 21, 20261380
Oct 16, 20261380
Oct 15, 20261380
Oct 14, 20261380
Oct 13, 20261380
Oct 09, 2026138+76
Oct 08, 2026620
Oct 07, 2026620
Oct 06, 2026620
Oct 05, 2026620
Oct 02, 202662No prior observation