比特币测试5.9万美元，ETF流出6.92亿，期权到期在即
Bitcoin Tests $59K as ETFs Shed $692M, Options Expiry Looms
Bitcoin fell to around $59,400 as $691 million fled spot ETFs, the most since May, ahead of Friday's $10.6 billion options expiry.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力