Gatekeepers to the assets overseen by financial advisers — the holy grail in eyes of fund issuers — are being especially choosy when it comes to the pack of freshly launched US-listed spot Bitcoin ETFs.

Carson Group, an Omaha, Nebraska-based registered investment advisory which has $30 billion on its platform, said it has approved just four of the 10 new Bitcoin ETFs. That list includes BlackRock’s $6.6 billion iShares Bitcoin Trust (ticker IBIT) and the $4.8 billion Fidelity Wise Origin Bitcoin Fund (FBTC) — the two products receiving the most investor inflows so far — as well as smaller offerings from Bitwise and Franklin Templeton.