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Contract OI history

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Dec 17, 2027 EXPIRATION

MSFT $380.00 Put

MSFT271217P00380000

Latest saved OI1,300Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $380.00 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. 1,3006500 2026-10-09: 1,196 OI2026-10-13: 1,245 OI2026-10-14: 1,245 OI2026-10-15: 1,254 OI2026-10-16: 1,253 OI2026-10-21: 1,300 OI2026-10-23: 1,300 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, 2026Viewing1,3000
Oct 21, 20261,300+47
Oct 16, 20261,253-1
Oct 15, 20261,254+9
Oct 14, 20261,2450
Oct 13, 20261,245+49
Oct 09, 20261,196No prior observation