Cover	3 Months Ended
	Mar. 31, 2026 shares
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Period End Date	Mar. 31, 2026
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q1
Entity Information [Line Items]
Entity Registrant Name	Hashdex Nasdaq CME Crypto Index ETF
Entity Central Index Key	0002031069
Entity File Number	001-42511
Entity Tax Identification Number	33-2103856
Entity Incorporation, State or Country Code	DE
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Addresses [Line Items]
Entity Address, Address Line One	19 West 44th Street
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10036
Entity Phone Fax Numbers [Line Items]
City Area Code	(866)
Local Phone Number	403-5272
Entity Listings [Line Items]
Title of 12(b) Security	Shares of Beneficial Interest of Hashdex Nasdaq CME Crypto Index ETF
Trading Symbol	NCIQ
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding	5,690,000