Equities have defied dour predictions made August when they were on a downswing.
In midmorning trading Monday, the Dow Jones industrial average added 95.28 points, 0.91 percent, to 10,555.40. The Standard & Poor's 500 index rose 1.15 percent, 12.71, to 1,122.26. The Nasdaq composite index added 1.52 percent, 33.11, to 2,276.59.
The benchmark 10-year Treasury note gained 2/32 to yield 2.788 percent.
The euro rose to $1.2835 compared to Friday's $1.2711. Against the yen, the dollar fell to 83.92 yen from Friday's 84.20 yen.
In Japan, the Nikkei 225 index rose 0.89 percent, 82.65, to 9,321.82.
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