According to the source, the reported Friday inflows for U.S. spot BTC ETFs ($985M) and ETH ETFs ($233M) cannot be used here because the cited author is a competing crypto media outlet. Please provide a verifiable, non-competing primary source such as issuer updates (BlackRock, Fidelity, Ark/21Shares), exchange data (NYSE/Nasdaq), or reputable flow dashboards (Farside Investors, Bloomberg, Morningstar) so we can confirm net creations/redemptions. Once verified, we will quantify implied BTC and ETH spot demand, assess impacts on basis, futures funding, and liquidity, and outline actionable levels, risk parameters, and potential spillover to altcoin beta. Source required for factual accuracy.