21Shares’ Bold SEI Move: Is This the Altcoin ETF Game-Changer Investors Can’t Afford to Miss?
Ever wondered if altcoins are finally stepping out of Bitcoin’s shadow to claim their own spot in the ETF spotlight? Well, 21Shares is betting big on that with its recent S-1 filing for a SEI ETF—a move that could stir up the altcoin ETF landscape in a major way. The new fund is designed to track the CF SEI-Dollar Reference Rate and might even throw staking into the mix, all while entrusting custody to Coinbase. This isn’t just another crypto product; it’s a strategic play in the growing battle for altcoin ETF dominance. With SEI tokens trading modestly yet promisingly around $0.29, the question is: will 21Shares’ new arrival shake things up or just add to the noise? Let’s dive into what this means for investors and the crypto market at large. LEARN MORE.
The proposed 21Shares SEI ETF would track the CF SEI-Dollar Reference Rate and may include staking, with custody handled by Coinbase

Key Takeaways
- 21Shares filed an S-1 with the SEC for a SEI ETF, designed as a passive vehicle to track SEI performance.
- The ETF will custody assets with Coinbase and may engage in staking, while SEI traded at $0.29 at press time.
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21Shares has filed a registration statement (S-1) with the SEC for a SEI exchange-traded fund (ETF), expanding its lineup of single-asset crypto investment products.
The planned 21Shares SEI ETF would track the CF SEI-Dollar Reference Rate in US dollars. The product is structured as a passive fund holding SEI in custody with Coinbase Trust, without using leverage or derivatives.
The fund could also stake part of its SEI holdings to earn rewards, but 21Shares said it has not yet decided whether to pursue that option.
The Sei Network is a Layer 1 blockchain built for high-speed trading and exchange-focused apps. Its native token, SEI, is used for fees, governance, and staking.
21Shares’ filing comes amid a wave of altcoin ETF applications. VanEck, Bitwise, and Grayscale have submitted S-1s for Solana, while other issuers are pursuing products tied to XRP, Cardano, Dogecoin, HBAR, and Litecoin. Bloomberg analysts see approval odds above 90% for many of these funds.
The company also joins the SEI race after Canary Capital filed the first S-1 for a SEI ETF and Cboe later submitted a 19b-4 for a staked version. At press time, SEI was trading at $0.29, according to CoinGecko data.
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