v3.26.3
Document And Entity Information - USD ($)
 12 Months Ended
Jun. 30, 2026
Aug. 31, 2026
Dec. 31, 2025
Document Information Line Items      
Entity Central Index Key 0002066824    
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jun. 30, 2026    
Document Fiscal Year Focus 2026    
Document Transition Report false    
Entity File Number 001-43313    
Entity Registrant Name VANECK BNB ETF    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 33-6988309    
Entity Address, Address Line One 666 Third Avenue    
Entity Address, Address Line Two 9th Floor    
Entity Address, State or Province NY    
Entity Address, City or Town New York    
Entity Address, Postal Zip Code 10017    
City Area Code 212    
Local Phone Number 293-2000    
Title of 12(b) Security Shares    
Trading Symbol VBNB    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Emerging Growth Company true    
Entity Small Business true    
Entity Ex Transition Period true    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 0
Entity Common Stock, Shares Outstanding   90,000  
Auditor Firm ID 925    
Auditor Name COHEN & COMPANY, LTD.    
Auditor Location Towson, Maryland    
Amendment Flag false    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31