FintechFintech

A daily public ledger of what the U.S. market charges for risk: a century of the S&P 500, half a century of the Nasdaq, 22 sector leaders, plus two home-grown daily gauges, the KAPX Index and the Fear-Price Index.每个美股交易日记录市场为风险开出的价钱：标普 500 的一个世纪、纳斯达克的半个世纪、22 个板块龙头，外加两个自制日更指标：K 指数与恐惧的标价指数。