【CME比特币期货溢价收窄，基差降至约4%，或接近2017年走势】金色财经报道，本周现货比特币ETF再度大量流出，分析认为核心原因在于CME比特币期货溢价收窄（基差降至约4%），削弱了“现金套利”策略的吸引力，尤其是在当前10年期美债提供约4.3%无风险收益的情况下，套利资金更倾向于转向更安全的投资。有其他因素影响了市场情绪，但本质上专业交易员的套利策略调整是资金流出的关键。比特币30日已实现盈亏比（Realized Profit/Loss Ratio）并未跌破趋势线，暗示牛市应仍在延续，当前走势或许最为接近2017年。
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