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Contract OI history

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Dec 18, 2026 EXPIRATION

MSFT $415.00 Put

MSFT261218P00415000

Latest saved OI1,676Oct 23, 2026
Last change+19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $415.00 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. 1,6768380 2026-10-09: 1,640 OI2026-10-13: 1,638 OI2026-10-14: 1,638 OI2026-10-15: 1,593 OI2026-10-16: 1,591 OI2026-10-21: 1,657 OI2026-10-23: 1,676 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, 2026Viewing1,676+19
Oct 21, 20261,657+66
Oct 16, 20261,591-2
Oct 15, 20261,593-45
Oct 14, 20261,6380
Oct 13, 20261,638-2
Oct 09, 20261,640No prior observation