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And don't miss Stephen Gandel on the wane of a crucial market tailwind: "Stock buybacks, after years of steadily increasing, are on the retreat. According to S&P Dow Jones Indices, companies in the S&P 500 spent roughly $120 billion on stock repurchases in the second three months of 2017. It's not a huge decrease from a year ago, but it's the fifth consecutive quarter in which the trailing 12-month figure for buybacks has dropped, the first time that's happened since the market meltdown in the Great Recession."
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