Wall Street stocks jumped in early trading Monday as a positive announcement about a trial on a coronavirus vaccine added to hopes for a reopening of the US economy.
About 15 minutes into trading, the Dow Jones Industrial Average stood at 24,462.19, up around 775 points, or 3.3 percent. The broad-based S&P 500 gained 2.8 percent to 2,942.61, while the tech-rich Nasdaq Composite Index advanced 2.1 percent to 9,202.57.
Investors greeted an announcement from US biotech firm Moderna, which reported "positive interim" results in the first clinical tests of its vaccine against the new coronavirus performed on a small number of volunteers.