REX-Osprey Solana Staking ETF Debuts with $12M Inflows, Signaling New Era for Crypto Investments
July 03, 2025

The U.S. financial markets witnessed a historic day on Wednesday with the inaugural launch of the REX-Osprey Solana Staking ETF (ticker: SSK), the very first U.S. exchange-traded fund that will offer direct exposure to Solana (SOL) with staking income.
In its Cboe BZX Exchange market opener, the fund attracted $12 million in flows and reached a trading volume of $33 million in its auspicious market entry.
Innovative Structure and Regulatory Navigation
SSK ETF is special in that it brings the price appreciation potential that is offered with Solana, but with the added advantage of staking returns. Through a special structure that allocates at least 40% of the assets to foreign Solana ETFs, the fund is able to distribute staking rewards to the shareholders.
To evade the intricate process of regulation, REX Shares created the ETF under the Investment Company Act of 1940 and evaded the standard 19b-4 filing process required for spot crypto ETFs. This allowed the fund to reach the market before other filings that were underway and cleared the way for later crypto-themed ETFs.
Market Reception and Analyst Perspectives
The launch was a healthy start to trading, said Bloomberg ETF analyst James Seyffart, as the fund saw $8 million in volume within the first 20 minutes.
Eric Balchunas, another analyst at Bloomberg, followed up with the remark that the day-one volume “blows away” that seen previously during the day one of the Solana and XRP futures ETFs, but is lower than the volumes seen during the launch days of the spot Bitcoin and Ether ETFs.
Anchorage Digital CEO and co-founder Nathan McCauley, whose Anchorage is the staking and custody partner for the ETF, called the launch a big step toward full access to the crypto economy: “The launch of crypto staking ETFs is a win for the consumer and a big step toward full access to the crypto economy.”
The success of the Solana Staking ETF could be followed by a new set of crypto investment products that combine digital assets with income-generating features such as staking. The eventual outcome could be increased institutional interest in cryptocurrencies other than Bitcoin and Ether, which could enlarge the scope of assets eligible for inclusion in an ETF.
Some analysts do sound a note of caution, however, pointing out that the relatively high expense ratio of the fund at 1.4% and its emphasis upon a somewhat lesser-known cryptocurrency may deter its uptake against more conventional crypto ETFs. Much will also depend upon ongoing investor demand and regulatory trends over the longer term.
Market Impact and Future Outlook
Following the ETF’s launch, Solana’s price experienced a modest uptick, trading around $153, a 3.6% increase over the past 24 hours. While this reflects positive market sentiment, the token remains down approximately 48% from its peak in January.
The introduction of the REX-Osprey Solana Staking ETF is an important moment in the history of crypto investment products that allows investors to access a novel means of gaining exposure to digital assets while participating in staking rewards.
The future success of such unique products will have an impact on the course that future crypto ETFs will take and the further integration of digital assets into conventional investment portfolios.