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Contract OI history

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Oct 23, 2026 EXPIRATION

MSFT $495.00 Put

MSFT261023P00495000

Latest saved OI2,936Oct 23, 2026
Last change+1,235vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $495.00 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. 2,9361,4680 2026-10-09: 452 OI2026-10-13: 449 OI2026-10-14: 449 OI2026-10-15: 440 OI2026-10-16: 453 OI2026-10-21: 1,701 OI2026-10-23: 2,936 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, 2026Viewing2,936+1,235
Oct 21, 20261,701+1,248
Oct 16, 2026453+13
Oct 15, 2026440-9
Oct 14, 20264490
Oct 13, 2026449-3
Oct 09, 2026452No prior observation