The Dow Jones industrial average rose 50.68 at 5,889.20, finishing just shy of 5,900, but notching its second straight record close after a nearly four-month drought.
The famed barometer of 30 big U.S. companies has now soared by more than 280 points, or 5 percent, in just seven sessions amid recent indications of stable inflation and interest rates.
Advancers led decliners today by a 7-to-5 margin on the New York Stock Exchange, with 1,417 up, 1,008 down and 191 unchanged. NYSE volume was 430.08 million shares, vs. 487.51 million Friday.
Broader measures were positive too, with the market's renewed vigor proving hard to resist for many investors skeptical about the quick rebound from July's bruising selloff.
The NYSE's composite rose 1.72 to 365.42, and the Standard & Poor's 500-stock index was 3.44 higher at 683.98, padding Friday's record close. The Nasdaq index rose 5.28 to 1,193.95, and the American Stock Exchange index climbed 0.68 to 570.94.
"There's buying power coming in," said Robert Stovall, president of Stovall/Twenty-First Advisers. "People who were very concerned about the market having seen its high for the year are now in the 'Dow at 6000 by year-end' mode. That chorus had been stilled until we had all of last week's positive economic news."