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Contract OI history

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Nov 20, 2026 EXPIRATION

BLDP $4.00 Put

BLDP261120P00004000

Latest saved OI460Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BLDP $4.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 4672330 2026-10-08: 467 OI2026-10-09: 467 OI2026-10-13: 458 OI2026-10-14: 458 OI2026-10-16: 458 OI2026-10-20: 460 OI2026-10-23: 460 OI Oct 08, 2026Oct 23, 2026

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

BLDP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4600
Oct 20, 2026460+2
Oct 16, 20264580
Oct 14, 20264580
Oct 13, 2026458-9
Oct 09, 20264670
Oct 08, 2026467No prior observation