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August has been one of the worst months for the stock market historically. In fact, it has been the worst month on average for the past 10 years, with the S&P 500 Index down an average of 0.78% for that month. Last week’s 3.1% slide for the index certainly fit that pattern, which begs the question whether investors should buckle up for more seasonal losses this month. Despite last week’s losses, 2019 has been a good year for stocks—the S&P 500 is up 17% year to date through August 2 and, excluding any losses Monday, still stands just 3% from its all-time closing high on July 26. Here we summarize August’s lackluster track record and discuss whether this August will fit the pattern.