(Bloomberg) —Fresh reports on the Trump campaign’s possible involvement with Russia during last year’s election shattered calm on financial markets Tuesday, sending U.S. stocks lower in a brief spurt of late morning selling.

The move proved short-lived, as the S&P 500 Index rebounded from a quick 0.5 percent slide to end the day little changed. Technology shares advanced, while the Bloomberg Dollar Spot Index was down slightly, Treasury yields held near 2.36 percent, gold fluctuated and oil rose.

Assets were jolted after the president’s son Donald Trump Jr. released emails he exchanged ahead of a meeting with a Russian lawyer last year that indicated the Russian government was backing his father’s presidential campaign and trying to damage his opponent. Prior to the revelation, trading this week had been listless as the market awaits testimony from Federal Reserve Chair Janet Yellen and the start of corporate earnings season.

“Until now, the markets have been ignoring political news,” said John Conlon, chief equity strategist at People’s United Wealth Management in Bridgeport, Connecticut, which oversees more than $7 billion. “It surprises me because we’re just beginning earnings season, and in the past that has been a big driver. All this is going to do is push some of this stuff to the background while congress focuses on Russia.

Here’s what investors will be watching:

Federal Reserve Chair Yellen’s testimony before Congress will be in focus later this week as investors look for guidance on when the U.S. central bank could start reducing its balance sheet. The U.K. government is due to publish it’s repeal bill on membership of the European Union this week. The Bank of Canada announces its interest-rate decision tomorrow, with a hike expected by most analysts.These are the main moves in markets:

Stocks

The S&P 500 fell 0.1 percent to 2,425.62 as of 4 p.m. in New York. It had been little changed before the report on Trump Jr. The Dow Jones Industrial Average rose 1.1 points, while the Nasdaq 100 Index climbed 0.3 percent. The Stoxx Europe 600 Index lost 0.7 percent following a 0.4 percent gain Monday.  The MSCI Emerging Market Index jumped 0.9 percent.

Commodities

West Texas Intermediate crude rose 1.5 percent to settle at $45.04 a barrel before U.S. government data forecast to show oil stockpiles extended declines. Gold gained 0.1 percent to $1,215.25 an ounce, adding to its increase on Monday.

Bonds

The yield on 10-year Treasuries declined one basis point to 2.36 percent. The yield on 10-year bunds added one basis point to 0.55 percent. Benchmark gilt yields increased a similar amount, reversing direction after a two-day recovery.

Currencies

The Bloomberg Dollar Spot Index fell 0.2 percent, erasing earlier gains that had the greenback strengthening against most of its G-10 peers. The pound added 0.3 percent to $1.2848, while the euro rose 0.6 percent to 1.1463.Asia

The yen gained 0.1 percent to 113.90 per dollar, following two days of declines. Japan’s Topix Index climbed 0.7 percent. Hong Kong’s Hang Seng Index strengthened 1.6 percent, heading for its first back-to-back gain in three weeks. The Hang Seng China Enterprises Index soared 2.1 percent, its biggest advance since March 16. The Shanghai Composite Index was down 0.3 percent after a short-lived advance mid-afternoon local time. Other indexes on the mainland were also lower.

–With assistance from Agnieszka de Sousa, Eddie van der Walt, Stephen Kirkland and Cecile Gutscher.To contact the reporter on this story: Jeremy Herron in New York at jherron8@bloomberg.net To contact the editors responsible for this story: Samuel Potter at spotter33@bloomberg.net Eric J. Weiner