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It’s tempting to assume that as today goes, so goes the year. But history shows that using the year’s first day of stock trading as a premise for an annual view of the market is baseless.
Down 1.6% just after trading opened, the S&P 500 Index was briefly threatening its worst start since 2001 before the decline was erased. Since 1928, gains or losses in any year’s inaugural session have matched the annual direction of US stocks only about half of the time, data compiled by Bloomberg shows.
Last year marked stocks’ first appreciable annual decline since 2008 as economic data from China added to concerns over a global economic slowdown. The S&P 500 fell to the brink of a bear market last month amid lingering US-China trade tensions and continued monetary tightening from the Federal Reserve.
"It sets the tone for the feeling for the market, but as an investor, you have to be prepared to change and try not to extrapolate," said Robert Pavlik, the chief investment strategist at SlateStone Wealth. "It can change on a dime."
The inclination to see the first few trading sessions of the year as a harbinger may trace to 2008, when stocks tumbled 1.4%, 2.5% and 1.8% on the first, third and fifth days. The S&P 500 went on to fall 38% over the next 12 months, the worst annual retreat since 1937.
But one year does not a strategy make. The S&P 500 greeted 1932 and 2001 with a plunge of 6.9% and 2.8%, respectively, and extended declines for the following 12 months. However, the next biggest drops, ranging from 1.6% to 2% in 1949, 1980, and 1983, all came at the start of up years.
