US spot XRP ETFs have reached $1.53 billion in AUM and 773 million XRP in custody less than six months after the first products launched in late 2025.Goldman Sachs disclosed a $153.8 million position across four XRP ETFs in its Q4 2025 13F filing, making it the largest known institutional holder and accounting for roughly 73% of the top 30 institutions’ combined exposure.Despite the Goldman milestone, 84% of US XRP ETF assets remain retail-held, compared to 48.8% institutional participation in Solana ETF products.