The market's win streak may be just beginning.
Edward Yardeni, who spent decades on Wall Street running investment strategy for firms such as Prudential and Deutsche Bank, predicts stocks will break out to all-time highs this year.
He's partly building his bull case based on a chart pointing to negative market sentiment.
"At the end of last year the bull-bear ratio, which is something we watch from Investors Intelligence, fell below one," the Yardeni Research president told CNBC's "Trading Nation" on Friday. "It's got an awfully good track record as a contrary indicator."
Each time the index last year spiked to either record or near record highs, Yardeni found the Index entered correction territory. It appears an opposite trend is unfolding right now.
"Bearishness was just so widespread that the market had a technical bounce, and now the fundamentals are going the right way," added Yardeni.
It's a scenario he predicted on "Trading Nation" on Dec. 26 as stocks were staging a historic rebound from the Christmas Eve meltdown. According to Yardeni, investors were too pessimistic about a recession, the Federal Reserve's interest rate policy and the U.S.-China trade war.
"A lot of these things seem to be coming around in the right direction here, and so the markets have done extremely well," he said.
The S&P 500 closed out the third week of January out of correction. The index now on its longest win streak since August — up four weeks in a row on signs U.S.-China trade tensions may be abating and encouraging fourth quarter earnings reports.
Yardeni said those factors are ultimately driving a year-long powerful market rebound. He predicted the S&P 500 will be 15 percent higher from current levels by year's end.
"I'm still sticking with 3100 and feel better about it," said Yardeni, who noted valuation multiples, low interest rates and inflation is setting Wall Street up for a very good year.