OITracker Cboe delayed data

Contract OI history

Back to MAS

Nov 20, 2026 EXPIRATION

MAS $70.00 Put

MAS261120P00070000

Latest saved OI349Oct 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 $70.00 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. 3491740 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 110 OI2026-10-14: 111 OI2026-10-15: 111 OI2026-10-16: 111 OI2026-10-21: 349 OI2026-10-23: 349 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, 20263490
Oct 21, 2026Viewing349+238
Oct 16, 20261110
Oct 15, 20261110
Oct 14, 2026111+1
Oct 13, 2026110+110
Oct 09, 202600
Oct 08, 202600
Oct 07, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation