CoinDesk
Morgan Stanley's Denny Galindo, writing in this week's Crypto Long & Short newsletter, argues that Solana has historically acted as a better portfolio diversifier than ether, despite running hotter on volatility. The read is anchored in correlation math across the four years through April 2026: bitcoin's correlation with ether came in at 0.78, while SOL's correlation with bitcoin sat at 0.72. The narrower gap that mattered more was with traditional assets. SOL's correlation with the S&P 500 was slightly lower than both bitcoin's and ether's, meaning when SOL diverged from BTC, it was also less likely to move in lockstep with US equities.
Since the start of 2026, ether and SOL have carried volatility roughly 35% and 44% higher than bitcoin respectively, so adding either crypto beyond BTC by definition lifts portfolio variance. The diversification question then turns on whether that extra volatility points in a different direction from the rest of the book. Galindo's framing: investors treating crypto as digital gold should stay BTC-only, those betting on blockchain adoption can hold all three, and investors prioritising diversification specifically may want to consider a BTC and SOL combination over one that leans on ether.
Why it matters
The analysis lands at a moment when US investors can actually act on it. Spot bitcoin ETPs have pulled in more than $55 billion since launching in January 2024, and the subsequent rollout of ether and SOL ETPs has turned what used to be a single-asset allocation question into a three-asset one. Correlation-driven portfolio construction, the kind of work that has historically lived in fixed income and equities sleeves, is starting to be applied to crypto with the same rigor, and Morgan Stanley putting numbers on it for wealth-management clients is a signal that the institutional tooling is catching up to the asset class.
Market impact
The piece also lands alongside a heavier week of structural news. Circle secured final OCC approval for a federally regulated trust bank, Swift is preparing live blockchain-ledger tests with 17 banks including Citi, HSBC, UBS and Wells Fargo, and the SEC is preparing a broad crypto rule proposal that could ease fundraising for tokenised securities. Strategy broke its HODL precedent with a roughly $216 million BTC sale to fund preferred-stock dividends, and Robinhood Chain's Arbitrum-based L2 hit roughly $690 million in average daily DEX volume in its first week, with Uniswap taking 99.5% of the share.
Frequently asked questions
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What did Morgan Stanley say about SOL vs ETH as a diversifier?
Denny Galindo, writing in Morgan Stanley's Crypto Long & Short newsletter, argued that Solana has historically acted as a better portfolio diversifier than ether. Over the four years through April 2026, SOL's correlation with BTC was 0.72 versus ETH's 0.78, and SOL also tracked the S&P 500 slightly less than either…
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How much more volatile are ETH and SOL than BTC since 2026?
Since the start of 2026, ether has carried volatility roughly 35% higher than bitcoin, and SOL about 44% higher. That extra variance is the cost of holding either asset beyond a BTC sleeve, and the diversification case depends on whether that volatility points in a different direction from the rest of the portfolio.
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Does Morgan Stanley recommend a specific crypto allocation?
No. The note says it makes no recommendation to buy, sell or hold BTC, ETH, SOL or any other asset, and that past diversification characteristics are not indicators of future results. It frames three investor profiles: BTC-only for digital-gold believers, BTC plus ETH plus SOL for blockchain-adoption bulls, and a BTC…
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Why does this analysis matter now?
Spot bitcoin ETPs have attracted more than $55 billion since launching in January 2024, and the subsequent launches of ether and SOL ETPs have turned a single-asset allocation choice into a three-asset one. Wealth-management frameworks like Morgan Stanley's are now applying the same correlation-driven construction…
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What other institutional crypto news landed alongside the piece?
Circle received final OCC approval for a federally regulated trust bank, Swift is preparing live blockchain-ledger tests with 17 banks including Citi, HSBC, UBS and Wells Fargo, the SEC is preparing a broad crypto rule proposal to ease fundraising, and Strategy sold roughly $216 million of BTC to fund preferred-stock…
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