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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $540.00 Put

MSFT261120P00540000

Latest saved OI1,982Oct 23, 2026
Last change+43vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $540.00 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. 1,9829910 2026-10-09: 631 OI2026-10-13: 1,785 OI2026-10-14: 1,785 OI2026-10-15: 1,856 OI2026-10-16: 1,834 OI2026-10-21: 1,939 OI2026-10-23: 1,982 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, 2026Viewing1,982+43
Oct 21, 20261,939+105
Oct 16, 20261,834-22
Oct 15, 20261,856+71
Oct 14, 20261,7850
Oct 13, 20261,785+1,154
Oct 09, 2026631No prior observation