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Contract OI history

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Jun 16, 2028 EXPIRATION

MSFT $520.00 Put

MSFT280616P00520000

Latest saved OI724Oct 23, 2026
Last change+100vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $520.00 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. 7243620 2026-10-09: 624 OI2026-10-13: 624 OI2026-10-14: 624 OI2026-10-15: 624 OI2026-10-16: 624 OI2026-10-21: 624 OI2026-10-23: 724 OI Oct 09, 2026Oct 23, 2026

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

MSFT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing724+100
Oct 21, 20266240
Oct 16, 20266240
Oct 15, 20266240
Oct 14, 20266240
Oct 13, 20266240
Oct 09, 2026624No prior observation