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Contract OI history

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Mar 19, 2027 EXPIRATION

MSFT $430.00 Put

MSFT270319P00430000

Latest saved OI6,065Oct 23, 2026
Last change+441vs 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. 6,0653,0320 2026-10-09: 4,192 OI2026-10-13: 4,209 OI2026-10-14: 4,209 OI2026-10-15: 4,265 OI2026-10-16: 4,268 OI2026-10-21: 5,624 OI2026-10-23: 6,065 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, 2026Viewing6,065+441
Oct 21, 20265,624+1,356
Oct 16, 20264,268+3
Oct 15, 20264,265+56
Oct 14, 20264,2090
Oct 13, 20264,209+17
Oct 09, 20264,192No prior observation