21Shares has officially submitted a 19b-4 filing to the U.S. Securities and Exchange Commission (SEC), marking the formal beginning of the review process for a spot SUI ETF. The move positions Sui to become one of the first altcoin-based ETFs in the United States following Ethereum, signaling a new chapter in the institutionalization of alternative Layer-1 networks.
The filing comes on the heels of a previous S-1 registration by 21Shares in April, and momentum appears to be building. In a blog post, the Sui Foundation stated, “The 19b-4 filing, now officially posted to the SEC’s public register, marks the formal beginning of the review process.” With more than $300 million already invested in SUI-based ETPs across Euronext Paris and Amsterdam, demand for regulated U.S. exposure is on the rise.
Nasdaq just filed to list the 21Shares SUI ETF — a spot ETF backed by the SUI token.
— Sui (@SuiNetwork) June 10, 2025
From $300M+ in global ETP inflows to a potential U.S. listing, institutional momentum for Sui is very real.
Next stop: institutional adoption. pic.twitter.com/5AGtmXimHs
Sui’s unique technological architecture—featuring object-oriented programming and horizontally scalable infrastructure—has enabled its wide-ranging utility across DeFi, gaming, and real-world asset tokenization. As of June, Sui ranks eighth in total value locked (TVL) with $1.94 billion, while its stablecoin market cap has surged over 190% year-to-date, surpassing $1.1 billion.
Despite facing a $260 million security breach involving the Cetus DEX, the Sui network has rebounded strongly. A $10 million security revamp and renewed commitments to dApp builders have helped restore user confidence. SUI’s price has risen 18% since early June, now trading at $3.47.
Mysten Labs President Kevin Boon praised the ETF milestone as a “powerful moment,” noting Sui’s growing appeal to developers and institutions alike. “We are proud to help 21Shares build towards a world where every investor can access SUI,” he said.
Speculation is growing around a potential “Altcoin ETF Summer,” although Bloomberg’s Eric Balchunas cautions that demand may diminish the further assets deviate from Bitcoin. Nonetheless, the SEC’s delayed decision on a Hedera ETF and Osprey’s aggressive Solana filing indicate that altcoin ETFs are firmly on the regulatory radar.
Also Read: SUI Breaks Out of Consolidation With Bullish Momentum: Can It Hit the $4 Target?
As the 21Shares SUI ETF review process unfolds, all eyes are on whether Sui can carve out a lasting role in mainstream finance.
Disclaimer: The information in this article is for general purposes only and does not constitute financial advice. The author’s views are personal and may not reflect the views of CoinBrief.io. Before making any investment decisions, you should always conduct your own research. Coin Brief is not responsible for any financial losses.
