OITracker Cboe delayed data

Contract OI history

Back to CSBR

Nov 20, 2026 EXPIRATION

CSBR $2.50 Put

CSBR261120P00002500

Latest saved OI34Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSBR $2.50 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 34170 2026-10-09: 34 OI2026-10-13: 34 OI2026-10-14: 34 OI2026-10-16: 34 OI2026-10-20: 34 OI2026-10-23: 34 OI Oct 09, 2026Oct 23, 2026

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

CSBR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing340
Oct 20, 2026340
Oct 16, 2026340
Oct 14, 2026340
Oct 13, 2026340
Oct 09, 202634No prior observation