OITracker Cboe delayed data

Contract OI history

Back to MAS

Nov 20, 2026 EXPIRATION

MAS $65.00 Put

MAS261120P00065000

Latest saved OI414Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MAS $65.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4142070 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 3 OI2026-10-07: 3 OI2026-10-08: 3 OI2026-10-09: 8 OI2026-10-13: 8 OI2026-10-14: 8 OI2026-10-15: 350 OI2026-10-16: 364 OI2026-10-21: 414 OI2026-10-23: 414 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MAS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20264140
Oct 21, 2026Viewing414+50
Oct 16, 2026364+14
Oct 15, 2026350+342
Oct 14, 202680
Oct 13, 202680
Oct 09, 20268+5
Oct 08, 202630
Oct 07, 202630
Oct 06, 202630
Oct 05, 202630
Oct 02, 20263No prior observation