据美国纽约联储数据，上个交易日（7月21日）担保隔夜融资利率（SOFR）报4.28%，之前一天报4.30%。当天，SOFR期权出现三笔大宗交易，交易员押注美联储年内降息力度不会像之前预料的那么大。上个交易日有效的联邦基金利率报4.33%，之前一天报4.33%。

Group 1 - The secured overnight financing rate (SOFR) reported at 4.28% on July 21, down from 4.30% the previous day [1] - Large trades in SOFR options indicate traders are betting that the Federal Reserve will not cut interest rates as much as previously expected this year [1] - The effective federal funds rate remained unchanged at 4.33% on the same day [1]