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Contract OI history

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Apr 16, 2027 EXPIRATION

MSFT $450.00 Put

MSFT270416P00450000

Latest saved OI665Oct 23, 2026
Last change+110vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $450.00 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. 6653320 2026-10-09: 420 OI2026-10-13: 480 OI2026-10-14: 480 OI2026-10-15: 485 OI2026-10-16: 543 OI2026-10-21: 555 OI2026-10-23: 665 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, 2026Viewing665+110
Oct 21, 2026555+12
Oct 16, 2026543+58
Oct 15, 2026485+5
Oct 14, 20264800
Oct 13, 2026480+60
Oct 09, 2026420No prior observation