OITracker Cboe delayed data

Contract OI history

Back to MSFT

Dec 17, 2027 EXPIRATION

MSFT $535.00 Put

MSFT271217P00535000

Latest saved OI187Oct 23, 2026
Last change+14vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $535.00 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. 187930 2026-10-09: 180 OI2026-10-13: 150 OI2026-10-14: 150 OI2026-10-15: 150 OI2026-10-16: 157 OI2026-10-21: 173 OI2026-10-23: 187 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, 2026Viewing187+14
Oct 21, 2026173+16
Oct 16, 2026157+7
Oct 15, 20261500
Oct 14, 20261500
Oct 13, 2026150-30
Oct 09, 2026180No prior observation