v3.26.3
Cover
Sep. 29, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 29, 2026
Entity File Number 001-43131
Entity Registrant Name Grayscale Sui Staking ETF
Entity Central Index Key 0002034012
Entity Tax Identification Number 99-6606736
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One c/o Grayscale Investments Sponsors
Entity Address, Address Line Two LLC290 Harbor Drive
Entity Address, Address Line Three 4th Floor
Entity Address, City or Town Stamford
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06902
City Area Code 212
Local Phone Number 668-1427
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Grayscale Sui Staking ETF Shares
Trading Symbol GSUI
Security Exchange Name NYSE
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false