The Smart Contract Fund by Grayscale has disclosed its latest altcoin purchases in its portfolio as of March 1, 2025:

Solana ($SOL ): 31.30%

Ethereum ($ETH ): 21.20%

Aave ($AAVE ): 20.25%

Cardano ($ADA ): 11%

Avalanche ($AVAX ): 7.24%

Sui ($SUI ): 6.50%

Polkadot ($DOT ): 2.51%

It seems that Grayscale is making a strong bet on these altcoins, and they have sold a significant portion of their $BTC holdings. This does not mean that Grayscale lacks confidence in Bitcoin, but it appears they sold a large part of their BTC to invest in altcoins.