OITracker Cboe delayed data

Contract OI history

Back to SO

Dec 18, 2026 EXPIRATION

SO $70.00 Put

SO261218P00070000

Latest saved OI1,677Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SO $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. 1,6778380 2026-10-02: 1,660 OI2026-10-05: 1,660 OI2026-10-06: 1,660 OI2026-10-07: 1,677 OI2026-10-08: 1,677 OI2026-10-09: 1,677 OI2026-10-13: 1,677 OI2026-10-14: 1,677 OI2026-10-15: 1,677 OI2026-10-16: 1,677 OI2026-10-21: 1,677 OI2026-10-23: 1,677 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, 2026Viewing1,6770
Oct 21, 20261,6770
Oct 16, 20261,6770
Oct 15, 20261,6770
Oct 14, 20261,6770
Oct 13, 20261,6770
Oct 09, 20261,6770
Oct 08, 20261,6770
Oct 07, 20261,677+17
Oct 06, 20261,6600
Oct 05, 20261,6600
Oct 02, 20261,660No prior observation