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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $525.00 Put

MSFT261120P00525000

Latest saved OI1,520Oct 23, 2026
Last change-73vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $525.00 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. 1,5937960 2026-10-09: 1,209 OI2026-10-13: 1,335 OI2026-10-14: 1,335 OI2026-10-15: 1,412 OI2026-10-16: 1,498 OI2026-10-21: 1,593 OI2026-10-23: 1,520 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, 2026Viewing1,520-73
Oct 21, 20261,593+95
Oct 16, 20261,498+86
Oct 15, 20261,412+77
Oct 14, 20261,3350
Oct 13, 20261,335+126
Oct 09, 20261,209No prior observation