The approval of spot Bitcoin exchange-traded funds (ETFs) in the US has significantly boosted demand and altered market dynamics. Experts predict the success of these ETFs will lead to more approvals in the future. The Bitcoin ETFs quickly became one of the most successful launches in history, attracting billions in capital inflows and demonstrating institutional investors' appetite for Bitcoin. While a spot Ether ETF is expected to start trading soon, analysts believe it won't match Bitcoin's success. However, it could still boost Ether's popularity among institutional investors.