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Contract OI history

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Nov 27, 2026 EXPIRATION

MSFT $500.00 Put

MSFT261127P00500000

Latest saved OI311Oct 23, 2026
Last change+37vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $500.00 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. 3111550 2026-10-09: 9 OI2026-10-13: 43 OI2026-10-14: 43 OI2026-10-15: 86 OI2026-10-16: 156 OI2026-10-21: 274 OI2026-10-23: 311 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, 2026Viewing311+37
Oct 21, 2026274+118
Oct 16, 2026156+70
Oct 15, 202686+43
Oct 14, 2026430
Oct 13, 202643+34
Oct 09, 20269No prior observation