- The S&P 500's return on equity increased by 2.37 percentage points to 18.6 percent last year, its highest level since 2000, according to Goldman Sachs.
- "The boost from lower tax rates is likely behind us," Goldman's chief U.S. equity strategist wrote. "We recommend investors focus on companies that are best-equipped to withstand cost pressures in 2019."
Stock profits will be harder to come by in 2019 as corporations will no longer get a boost from lower corporate tax rates, according to Goldman Sachs.
David Kostin, the bank's chief U.S. equity strategist, said in a note Friday that an increase in the 's return on equity "appears unlikely" this year. Return on equity, usually abbreviated as "ROE," is a measure of profitability that is calculated by dividing net income by shareholders' equity. Kostin added the S&P 500's ROE increased by 2.37 percentage points to 18.6 percent last year, its highest level since 2000.
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"Lower tax rates accounted for two thirds of the improvement in ROE but fundamentals were strong even excluding tax reform," Kostin said. "High tax rate stocks rallied in 2018. However, consensus expects corporate tax rates will actually rise in 2019, driving some of the weakness in the 2019 profitability outlook."
S&P 500 earnings grew by at least 25 percent in the first three quarters of 2018 and by more than 13 percent in the fourth quarter, FactSet data show.
The expansion was driven in large part by a massive tax bill signed by President Donald Trump in late 2017 that slashed the federal corporate tax rate to 21 percent from 35 percent. Trump's signing of the tax bill was widely anticipated as investors pushed the S&P 500 higher by nearly 20 percent in 2017.
However, corporate taxes are expected to rise in some sectors, especially in the communications services group which includes Netflix and Disney. This could put pressure on corporate profits in 2019, Kostin said.
Another headwind for companies this year could be rising wages, the strategist added. "Surveys suggest that wages and other costs are rising faster than companies are raising prices. Historically, this pattern has presaged declines in EBIT margins." He said S&P 500 margins should remain flat through 2020 with risks "tilted to the downside."
"The boost from lower tax rates is likely behind us," Kostin said. "We recommend investors focus on companies that are best-equipped to withstand cost pressures in 2019."
The Goldman strategist highlighted a basket of 50 stocks he expects will have strong return on equity this year. The basket includes TripAdvisor, Cisco Systems, Cabot Oil and Under Armour. Goldman estimates return on equity for TripAdvisor and Cisco will grow by 16 percent and 40 percent, respectively. The bank also sees Cabot's ROE expanding by 35 percent and Under Armour's by 44 percent.
So far, the basket has outperformed the S&P 500 by 5 percentage points in 2019 and 72 percent of its members have also outpaced the broad index. The S&P 500 is up 12.6 percent this year through Friday's close.