OITracker Cboe delayed data

Contract OI history

Back to SO

Dec 18, 2026 EXPIRATION

SO $85.00 Call

SO261218C00085000

Latest saved OI483Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $85.00 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. 5202600 2026-10-02: 270 OI2026-10-05: 378 OI2026-10-06: 494 OI2026-10-07: 520 OI2026-10-08: 492 OI2026-10-09: 502 OI2026-10-13: 502 OI2026-10-14: 502 OI2026-10-15: 500 OI2026-10-16: 499 OI2026-10-21: 485 OI2026-10-23: 483 OI Oct 02, 2026Oct 23, 2026

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

SO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing483-2
Oct 21, 2026485-14
Oct 16, 2026499-1
Oct 15, 2026500-2
Oct 14, 20265020
Oct 13, 20265020
Oct 09, 2026502+10
Oct 08, 2026492-28
Oct 07, 2026520+26
Oct 06, 2026494+116
Oct 05, 2026378+108
Oct 02, 2026270No prior observation