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Contract OI history

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Jan 21, 2028 EXPIRATION

MSTR $400.00 Put

MSTR280121P00400000

Latest saved OI600Oct 23, 2026
Last change+218vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSTR $400.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6003000 2026-10-09: 381 OI2026-10-13: 381 OI2026-10-14: 381 OI2026-10-15: 381 OI2026-10-16: 381 OI2026-10-21: 382 OI2026-10-23: 600 OI Oct 09, 2026Oct 23, 2026

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

MSTR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing600+218
Oct 21, 2026382+1
Oct 16, 20263810
Oct 15, 20263810
Oct 14, 20263810
Oct 13, 20263810
Oct 09, 2026381No prior observation