Senior figures from CoinShares, Calamos, ProShares and Flow Traders flagged Coinbase-heavy custody concentration, modest advisor uptake and creation-flow inefficiency as being among the next set of problems to solve.PROČITAJ VIŠE... https://www.coindesk.com/business/2026/05/06/spot-bitcoin-etfs-solved-access-but-custody-advisors-and-plumbing-still-lag-panelists-say