The Dow Jones Industrials screamed higher 534.24 points, or 2.4%, to 23,188.10
The S&P 500 jumped 52.86 points, or 2%, to 2,712.27
The NASDAQ Composite popped 136.56 points, or 1.7%, to 8,023.82.
The major averages hit their session highs after Sanders made his announcement. Some of Sanders’ policy proposals, including Medicare for All, raised concern among several business owners and investors who feared taxes would go up under his presidency.
Wednesday’s news puts former Vice President Joe Biden — who is seen by Wall Street as a more market-friendly candidate — closer to the Democratic nomination.
Stocks pressured by the coronavirus outbreak led the way higher. Carnival, Norwegian Cruise Line and Royal Caribbean all advanced at least 2.6%. MGM Resorts gained 6.5% while Wynn Resorts climbed 5.3%. United led airline stocks higher with a 6.6% jump. American gained
4.5%, and Delta traded higher by 2.7%. In the U.S., the number of daily increases in coronavirus cases has fallen since Friday, according to data from Johns Hopkins University. Daily increases in global cases have also fallen since then.
Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, told the media on Wednesday that the U.S. death count related to the coronavirus is now lower than initially thought, noting there should be a turnaround after this week. He added, however, virus efforts should be intensified.
However, some investors believe equities were getting ahead of the reality where coronavirus shutdowns are likely to weigh on the economy significantly beyond the second quarter. The major averages have rallied about 20% from their March 23 lows.
The Federal Open Market Committee is set to publish its meeting minutes from its March meeting. In an emergency decision ahead of that meeting, the Fed cut interest rates to zero, for the first time since the financial crisis.
Prices for the 10-Year U.S. Treasury lost ground, lifting yields to 0.75% from Tuesday’s 0.73%. Treasury prices and yields move in opposite directions.
Oil prices gained 81 cents to $24.44 U.S. a barrel. Gold prices picked up $5.70 to $1,689.40 U.S. an ounce.