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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $385.00 Put

MSFT261120P00385000

Latest saved OI1,411Oct 23, 2026
Last change+64vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $385.00 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. 1,4117050 2026-10-09: 1,348 OI2026-10-13: 1,344 OI2026-10-14: 1,344 OI2026-10-15: 1,344 OI2026-10-16: 1,343 OI2026-10-21: 1,347 OI2026-10-23: 1,411 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, 2026Viewing1,411+64
Oct 21, 20261,347+4
Oct 16, 20261,343-1
Oct 15, 20261,3440
Oct 14, 20261,3440
Oct 13, 20261,344-4
Oct 09, 20261,348No prior observation