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Contract OI history

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Oct 23, 2026 EXPIRATION

MSFT $430.00 Put

MSFT261023P00430000

Latest saved OI282Oct 23, 2026
Last change-20vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $430.00 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. 3021510 2026-10-09: 281 OI2026-10-13: 276 OI2026-10-14: 276 OI2026-10-15: 270 OI2026-10-16: 290 OI2026-10-21: 302 OI2026-10-23: 282 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, 2026Viewing282-20
Oct 21, 2026302+12
Oct 16, 2026290+20
Oct 15, 2026270-6
Oct 14, 20262760
Oct 13, 2026276-5
Oct 09, 2026281No prior observation