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Contract OI history

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Dec 18, 2026 EXPIRATION

MSFT $480.00 Put

MSFT261218P00480000

Latest saved OI6,719Oct 23, 2026
Last change+155vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $480.00 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. 6,7193,3590 2026-10-09: 6,434 OI2026-10-13: 6,479 OI2026-10-14: 6,479 OI2026-10-15: 6,490 OI2026-10-16: 6,510 OI2026-10-21: 6,564 OI2026-10-23: 6,719 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, 2026Viewing6,719+155
Oct 21, 20266,564+54
Oct 16, 20266,510+20
Oct 15, 20266,490+11
Oct 14, 20266,4790
Oct 13, 20266,479+45
Oct 09, 20266,434No prior observation