Despite some early-week strength, stocks finished the week with severe losses. The stock market fell on Thursday afternoon, and the selling accelerated on Friday with the announcement of higher-than-expected May consumer price index (CPI) data. Trading volumes were small at the start of the week, and volatility as assessed by the Chicago Board Options Exchange (CBOE) Volatility Index, known as the VIX, was relatively low, but volatility spiked near the end of the week.