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Contract OI history

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Oct 23, 2026 EXPIRATION

MSFT $530.00 Put

MSFT261023P00530000

Latest saved OI5,142Oct 23, 2026
Last change+1,183vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $530.00 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. 5,1422,5710 2026-10-09: 1,297 OI2026-10-13: 1,521 OI2026-10-14: 1,521 OI2026-10-15: 1,851 OI2026-10-16: 2,392 OI2026-10-21: 3,959 OI2026-10-23: 5,142 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, 2026Viewing5,142+1,183
Oct 21, 20263,959+1,567
Oct 16, 20262,392+541
Oct 15, 20261,851+330
Oct 14, 20261,5210
Oct 13, 20261,521+224
Oct 09, 20261,297No prior observation