【 美股涨幅大幅收窄，数字货币大跌 】 美联储理事库克可能在“特朗普罢免她”的官司中胜诉。纳指100一度全部回吐早盘约1.4%涨幅，以太坊盘中跌超4%，白银跌。

Group 1 - The core viewpoint of the article highlights a significant narrowing of gains in the U.S. stock market, with the Nasdaq index reversing an early morning increase of approximately 1.4% [1] - Ethereum experienced a notable decline, dropping over 4% during intraday trading, indicating volatility in the cryptocurrency market [1] - Silver prices also fell, reflecting broader trends in precious metals amidst market fluctuations [1]