In recent days, financial markets were hopeful progress toward a Covid-19 vaccine and another round of economic stimulus from Congress would boost the US economy
Stocks were higher before the remarks, but reversed course after Trump made the comments on Twitter
Tech shares weighed heaviest on the indexes, but the blue-chip Dow's losses were mitigated by gains in economically sensitive cyclical stocks
Amazon.com, Facebook and Netflix were among companies that saw block trades of call contracts Thursday, representing speculation on movements in their shares through the first months of next year
Financial planners recommend setting aside 5 to 10 per cent of one's portfolio in international funds
White House negotiators on Tuesday vowed to work "around the clock" with congressional Democrats to try to reach a deal on the package by the end of this week
The Dow Jones Industrial Average rose 152.27 points, or 0.57%, at the open to 26,833.14, and the S&P 500 opened higher by 16.68 points, or 0.51%, at 3,268.52.
US drugmaker Pfizer and German biotech firm BioNTech reported additional data from their experimental Covid-19 vaccine that showed it was safe and induced an immune response in patients
The Dow Jones Industrial Average rose 39.91 points, or 0.15%, at the open to 26,774.62.
Trading powerhouses Morgan Stanley and Goldman Sachs performed better than Main Street rivals JPMorgan Chase, Bank of America and Citigroup
The US biotech firm's breakthrough is one of the most promising developments yet in the race to develop a vaccine against the virus that has paralysed the world's economy.
For many stocks to go up at the same time, the most important parts of the economy - construction, auto, finance, basic materials, consumer products - have to enjoy tailwinds
The Dow Jones Industrial Average rose 136.90 points, or 0.55%, to 25,152.45 at the open.
The Dow Jones Industrial Average rose 531.25 points, or 2.11%, at the open to 25,659.42.
The unemployment rate for April was 14.7 per cent, which was the highest since 1948. With the addition of 2.5 million jobs, the monthly rate dropped to 13.3 per cent for May
The Indian economy and markets, for instance, tend to be hit hard by high oil prices
The banking subsector declined 5.2%, falling for the third straight day
The scariest aspect of the crash is that, for once, it's about something real
US stock futures plunged 4.8% to hit their downlimit before daybreak in Singapore. The dollar sank more than 2% against the yen
Hollywood has postponed the release of several movies and movie theaters around the world have been closed over the health crisis