OITracker Cboe delayed data

Contract OI history

Back to MOS

Jan 21, 2028 EXPIRATION

MOS $27.50 Call

MOS280121C00027500

Latest saved OI996Oct 23, 2026
Last change+40vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MOS $27.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 9964980 2026-10-02: 937 OI2026-10-05: 934 OI2026-10-06: 933 OI2026-10-07: 933 OI2026-10-08: 933 OI2026-10-09: 958 OI2026-10-13: 958 OI2026-10-14: 959 OI2026-10-15: 959 OI2026-10-16: 952 OI2026-10-21: 956 OI2026-10-23: 996 OI Oct 02, 2026Oct 23, 2026

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

MOS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026996+40
Oct 21, 2026Viewing956+4
Oct 16, 2026952-7
Oct 15, 20269590
Oct 14, 2026959+1
Oct 13, 20269580
Oct 09, 2026958+25
Oct 08, 20269330
Oct 07, 20269330
Oct 06, 2026933-1
Oct 05, 2026934-3
Oct 02, 2026937No prior observation