A sharp shift in momentum hit the crypto ETF landscape on Dec. 31. While Bitcoin and Ethereum continued to face heavy selling pressure, a few altcoins quietly moved in the opposite direction.

Bitcoin spot ETFs saw $348M in net outflows, with none of the 12 listed funds recording any inflows. Ethereum followed a similar pattern, posting $72.06M in net outflows across all nine ETFs, again with zero inflows reported.

In contrast, capital flowed toward select alternatives: Solana spot ETFs gained $2.29M in net inflows, while XRP spot ETFs attracted $5.58M.

Overall, the data signals risk rotating out of BTC and ETH ETFs, while targeted investor interest remains focused on specific altcoin products.