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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $480.00 Put

MSFT261120P00480000

Latest saved OI4,137Oct 23, 2026
Last change+143vs 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. 4,1372,0680 2026-10-09: 3,512 OI2026-10-13: 3,915 OI2026-10-14: 3,915 OI2026-10-15: 3,840 OI2026-10-16: 3,823 OI2026-10-21: 3,994 OI2026-10-23: 4,137 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, 2026Viewing4,137+143
Oct 21, 20263,994+171
Oct 16, 20263,823-17
Oct 15, 20263,840-75
Oct 14, 20263,9150
Oct 13, 20263,915+403
Oct 09, 20263,512No prior observation