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Contract OI history

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Dec 18, 2026 EXPIRATION

MSFT $430.00 Put

MSFT261218P00430000

Latest saved OI1,710Oct 23, 2026
Last change+8vs 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. 1,9839910 2026-10-09: 1,983 OI2026-10-13: 1,767 OI2026-10-14: 1,767 OI2026-10-15: 1,756 OI2026-10-16: 1,668 OI2026-10-21: 1,702 OI2026-10-23: 1,710 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, 2026Viewing1,710+8
Oct 21, 20261,702+34
Oct 16, 20261,668-88
Oct 15, 20261,756-11
Oct 14, 20261,7670
Oct 13, 20261,767-216
Oct 09, 20261,983No prior observation