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Contract OI history

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Jun 16, 2028 EXPIRATION

MSFT $390.00 Put

MSFT280616P00390000

Latest saved OI558Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $390.00 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. 5612800 2026-10-09: 472 OI2026-10-13: 497 OI2026-10-14: 497 OI2026-10-15: 556 OI2026-10-16: 556 OI2026-10-21: 561 OI2026-10-23: 558 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, 2026Viewing558-3
Oct 21, 2026561+5
Oct 16, 20265560
Oct 15, 2026556+59
Oct 14, 20264970
Oct 13, 2026497+25
Oct 09, 2026472No prior observation