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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $365.00 Put

MSFT261120P00365000

Latest saved OI2,827Oct 23, 2026
Last change+157vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $365.00 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. 2,8271,4130 2026-10-09: 2,680 OI2026-10-13: 2,652 OI2026-10-14: 2,652 OI2026-10-15: 2,651 OI2026-10-16: 2,651 OI2026-10-21: 2,670 OI2026-10-23: 2,827 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, 2026Viewing2,827+157
Oct 21, 20262,670+19
Oct 16, 20262,6510
Oct 15, 20262,651-1
Oct 14, 20262,6520
Oct 13, 20262,652-28
Oct 09, 20262,680No prior observation