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Contract OI history

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Dec 17, 2027 EXPIRATION

MSFT $430.00 Put

MSFT271217P00430000

Latest saved OI1,376Oct 23, 2026
Last change+4vs 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. 1,3766880 2026-10-09: 1,337 OI2026-10-13: 1,336 OI2026-10-14: 1,336 OI2026-10-15: 1,336 OI2026-10-16: 1,335 OI2026-10-21: 1,372 OI2026-10-23: 1,376 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, 2026Viewing1,376+4
Oct 21, 20261,372+37
Oct 16, 20261,335-1
Oct 15, 20261,3360
Oct 14, 20261,3360
Oct 13, 20261,336-1
Oct 09, 20261,337No prior observation