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Contract OI history

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Mar 19, 2027 EXPIRATION

MSFT $530.00 Put

MSFT270319P00530000

Latest saved OI1,087Oct 23, 2026
Last change+126vs 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. 1,0875430 2026-10-09: 813 OI2026-10-13: 1,005 OI2026-10-14: 1,005 OI2026-10-15: 1,005 OI2026-10-16: 994 OI2026-10-21: 961 OI2026-10-23: 1,087 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, 2026Viewing1,087+126
Oct 21, 2026961-33
Oct 16, 2026994-11
Oct 15, 20261,0050
Oct 14, 20261,0050
Oct 13, 20261,005+192
Oct 09, 2026813No prior observation