Morgan Stanley ETFs Bring Staking to Ether and Solana

On July 14, 2026, Morgan Stanley Investment Management filed its third round of amendments with the U.S. Securities and Exchange Commission for two proposed spot cryptocurrency ETFs: the Morgan Stanley Ethereum Trust and the Morgan Stanley Solana Trust. The updated S-1 filings reveal a structure that goes beyond simple price exposure, incorporating staking provisions, dual custodians, and a fee structure designed to undercut competitors. If approved, the funds would trade on NYSE Arca under the tickers MSSE and MSOL, offering institutional investors regulated access to Ether and Solana with built-in yield generation.

The filing arrives at a pivotal moment. BlackRock launched its staked Ethereum ETF (ETHB) to strong demand, the Ethereum Foundation completed its 70,000 ETH staking commitment, and ETH surged 6.2% following the latest CPI print, outperforming Bitcoin's 3.8% gain. Morgan Stanley's move signals that Wall Street is no longer treating crypto as a speculative side bet but as a core asset class requiring infrastructure-grade products with staking, custody, and institutional-grade compliance baked in.

What the Amended S-1 Filings Reveal

The Ethereum Trust, filed under registration number 333-292593, and the Solana Trust, filed under 333-292587, share a nearly identical structure. Both name BNY Mellon and Coinbase Custody Trust Company as joint digital-asset custodians. BNY Mellon, chartered as a New York state limited liability trust company, provides traditional custody services, while Coinbase Custody handles digital-asset custody and trade execution. This dual-custodian model addresses one of the SEC's longstanding concerns: that a single crypto-native custodian could create counterparty risk for investors.

CoinDesk Indices supplies the pricing benchmark for both trusts, with each fund carrying a sponsor fee of 0.14% annualized on net asset value. That fee is among the lowest in the crypto ETF market, positioning Morgan Stanley competitively against BlackRock's iShares Ethereum ETF and Fidelity's Ethereum Fund. The low fee also reflects a broader trend: as crypto ETFs mature, sponsors are competing on cost rather than novelty.

The funds will not use leverage, derivatives, or active trading strategies. Instead, they will hold spot Ether or Solana directly, with the delegated sponsor, Morgan Stanley Investment Management Inc., managing staking allocations through approved third-party staking services providers.

Staking: The Infrastructure Shift

The most significant detail in the amended filings is the staking framework. The Delegated Sponsor intends to cause each Trust to engage in staking from the commencement of the offering. For the Ethereum Trust, the Ether Custodians may enter into written agreements with third-party staking services providers, which may be affiliates of the custodians or independent approved providers. The same structure applies to the Solana Trust, where SOL custodians designate a Staking Services Provider as the validator for a specified amount of staked assets.

This is a meaningful departure from the first generation of spot Bitcoin ETFs, which were purely passive exposure vehicles. By embedding staking into the fund structure, Morgan Stanley is acknowledging that proof-of-stake assets like Ether and Solana generate yield natively, and that institutional investors expect to capture that yield. Staking rewards will accrue to the trust, potentially increasing the net asset value over time and creating a compounding effect that pure price-exposure ETFs cannot match.

The staking provisions also reflect regulatory progress. The SEC's clarification on staking within ETF structures, combined with the GENIUS Act's stablecoin framework, has given traditional finance the confidence to build yield-generating crypto products. The Ethereum Foundation's own staking program, which reached its 70,000 ETH target in April 2026, demonstrated that institutional-scale staking can be executed securely and transparently.

Dual Custody and Institutional Risk Management

The decision to split custody between BNY Mellon and Coinbase reflects a pragmatic approach to risk. BNY Mellon brings centuries of institutional trust and regulatory familiarity, while Coinbase provides the technical infrastructure for secure digital-asset storage and execution. For the SEC, the arrangement addresses concerns about key management, insurance coverage, and operational resilience that have dogged single-custodian crypto products.

For Solana specifically, the custody arrangement is notable because it represents one of the first instances of a major Wall Street bank providing custody services for SOL. BNY Mellon's involvement signals that institutional custodians are expanding beyond Bitcoin and Ether to support Layer-1 assets with different consensus mechanisms and risk profiles.

The Competitive Landscape: What This Means for the Market

Morgan Stanley's filing intensifies the institutional crypto ETF race. BlackRock's ETHB already demonstrated that staking-enabled Ethereum ETFs can attract significant inflows. Fidelity, Franklin Templeton, and other asset managers have filed or are expected to file similar products. The 0.14% sponsor fee suggests that Morgan Stanley is willing to sacrifice margin for market share, a strategy that could pressure competitors to lower their fees further.

The inclusion of Solana alongside Ether is also strategically significant. While Ethereum dominates the institutional narrative, Solana's high throughput and low transaction costs have attracted developers and users. A regulated Solana ETF with staking would give institutional investors exposure to a high-growth Layer-1 without the operational complexity of direct custody.

If you are building staking infrastructure, custody solutions, or institutional-grade DeFi products, the convergence of Wall Street demand and regulatory clarity is creating real opportunities. thirdweb offers developer plans that scale with your project, whether you are building staking dashboards, validator management tools, or institutional DeFi integrations.

What Builders Should Watch

The Morgan Stanley filing highlights several areas where developer activity will matter. First, staking infrastructure needs to scale. As more institutional capital flows into staking-enabled ETFs, the demand for robust validator management, slashing protection, and reward distribution systems will grow. Builders who can provide enterprise-grade staking APIs and dashboards will find willing customers among ETF sponsors and their custodians.

Second, cross-chain custody is becoming a real need. Morgan Stanley's dual-custodian model for both Ether and Solana suggests that future ETF products may span multiple chains. Infrastructure that supports multi-asset custody, reconciliation, and reporting across different blockchain protocols will be essential.

Third, compliance tooling is an underserved market. The SEC's requirements for ETF sponsors include detailed reporting on staking activities, custodian operations, and asset valuation. Developers who build compliance dashboards, audit trails, and real-time monitoring tools for staking operations will be well-positioned as more traditional finance firms enter the space.

The Bigger Picture: Ethereum as a Yield Asset

The Morgan Stanley filing, combined with ETH's 6.2% post-CPI surge and the Ethereum Foundation's completed staking program, reinforces a broader narrative: Ethereum is increasingly being treated as a yield-generating asset rather than a speculative technology bet. Analysts have begun arguing that ETH should be evaluated alongside currencies and reserve assets rather than tech stocks, a framing that could reshape how institutional portfolios allocate to digital assets.

With network staking now nearing one-third of total ETH supply, the staking yield has become a meaningful economic variable. Institutional products that capture this yield, like the proposed Morgan Stanley trusts, bridge the gap between traditional finance's need for regulated exposure and Ethereum's native yield mechanics.

Looking Ahead

The SEC has not yet set a deadline for ruling on the Morgan Stanley trusts. However, the filing's thoroughness, the dual-custodian model, and the inclusion of staking provisions suggest that Morgan Stanley is responding to feedback from regulators and positioning for approval. If the ETFs launch, they would join a growing roster of institutional crypto products that treat staking not as an afterthought but as a core feature.

For the broader ecosystem, the message is clear. Wall Street is building infrastructure for crypto that goes beyond price speculation. Staking, custody, compliance, and multi-chain support are the new battlegrounds. Developers and builders who can deliver institutional-grade tooling in these areas will find themselves at the center of the next phase of crypto adoption.