Nate Geraci, president of the ETF Store, stated that the Grayscale ETF serves as a test case for future altcoin ETF approvals, since XRP, Solana and Cardano comprise less than 10% of the fund’s holdings

Quotes that support claims

Side benefit for SEC in approving GDLC is that it would provide nice “test run” for addn’l crypto assets in ETF wrapper

Side benefit for SEC in approving GDLC is that it would provide nice 'test run' for addn’l crypto assets in ETF wrapper…xrp, sol, & ada represent < 10% combined of GDLC’s holdings," Geraci said in the post on X. "Easy way to slowly step into other assets