OITracker Cboe delayed data

Contract OI history

Back to SO

Oct 23, 2026 EXPIRATION

SO $75.00 Put

SO261023P00075000

Latest saved OI235Oct 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 $75.00 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. 2541270 2026-10-02: 254 OI2026-10-05: 253 OI2026-10-06: 253 OI2026-10-07: 253 OI2026-10-08: 253 OI2026-10-09: 253 OI2026-10-13: 253 OI2026-10-14: 253 OI2026-10-15: 252 OI2026-10-16: 252 OI2026-10-21: 237 OI2026-10-23: 235 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, 2026Viewing235-2
Oct 21, 2026237-15
Oct 16, 20262520
Oct 15, 2026252-1
Oct 14, 20262530
Oct 13, 20262530
Oct 09, 20262530
Oct 08, 20262530
Oct 07, 20262530
Oct 06, 20262530
Oct 05, 2026253-1
Oct 02, 2026254No prior observation