OITracker Cboe delayed data

Contract OI history

Back to BXSL

Jan 15, 2027 EXPIRATION

BXSL $21.00 Put

BXSL270115P00021000

Latest saved OI192Oct 23, 2026
Last change+5vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BXSL $21.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 192960 2026-10-02: 167 OI2026-10-05: 167 OI2026-10-06: 167 OI2026-10-07: 167 OI2026-10-08: 187 OI2026-10-13: 187 OI2026-10-14: 187 OI2026-10-16: 187 OI2026-10-20: 187 OI2026-10-23: 192 OI Oct 02, 2026Oct 23, 2026

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

BXSL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing192+5
Oct 20, 20261870
Oct 16, 20261870
Oct 14, 20261870
Oct 13, 20261870
Oct 08, 2026187+20
Oct 07, 20261670
Oct 06, 20261670
Oct 05, 20261670
Oct 02, 2026167No prior observation