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Contract OI history

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Apr 16, 2027 EXPIRATION

CBAT $2.50 Put

CBAT270416P00002500

Latest saved OI31Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CBAT $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. 31150 2026-10-09: 20 OI2026-10-13: 20 OI2026-10-14: 20 OI2026-10-16: 21 OI2026-10-20: 31 OI2026-10-23: 31 OI Oct 09, 2026Oct 23, 2026

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

CBAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing310
Oct 20, 202631+10
Oct 16, 202621+1
Oct 14, 2026200
Oct 13, 2026200
Oct 09, 202620No prior observation