The spread between yields on U.S. two-year and 10-year notes, a closely watched metric, is likely to invert for the first time since 2007. That would follow the inversion of another part of the yield curve earlier in the year. Here is what that means. The yield curve is a plot of the yields on all Treasury maturities - debt sold by the federal government - ranging from 1-month bills to 30-year bonds. In normal circumstances, it has an arcing, upward slope because bond investors expect to be compensated more for taking on the added risk of owning bonds with longer maturities. When yields further out on the curve are ... (full story)