Markets rejoiced on the news of a possible vaccine and a now-peaceful transition from Trump to Biden.
At least one firm, TD Ameritrade, suggested its systems may be overwhelmed by the surge in traffic.
Bitcoin is failing its support at $10,000, to which analysts warned of more pull back.
U.S. stock futures dipped Thursday morning: Dow Futures fell 265 points to 27,789, Nasdaq Futures dipped 120 points to 11,148.75 and S&P Futures plunged 37.50 points to 3352.
U.S. stocks rose on Wednesday as private payroll cuts in May were less than expected.
Suriname president's future depends on legislative election
U.S. stocks fell on Monday on worries about the feasibility of reopening the economy.
Italy unveils punishing public debt, deficit forecasts
Carnival, battered by the virus pandemic, is seeking to raise new funds
U.S. stocks were modestly higher at midday on Tuesday.
U.S. stocks plunged at noon on Friday, although U.S. employment figures were impressive
S&P cuts Lebanon debt rating, warns further cut possible
US stocks finished 2019 higher as traders appeared to have poured back into market in final hours.
U.S. stocks traded higher on Friday on continued optimism over the China trade deal and strong retail sales
Brazil's Bolsonaro to walk diplomatic tightrope at BRICS
Hong Kong's leader's decision to withdraw an extradition law and the British Parliament's decision to block a hard exit from the EU sent stocks higher.
Wall Street rallied somewhat Monday but the action now seems to be shifting towards small caps.
The Fed decided not to boost interest rates for the year, causing dismay on Wall Street.
The surge in U.S. stock index futures indicates a higher open for the market on Wednesday.
A lower start is likely for U.S markets as major U.S. stock index futures were slightly down Thursday morning as investor-attention moved to corporate earnings and trade issues.
The same credit rating agencies that propped up grades of mortgage-backed securities prior to the 2008 financial collapse are set to cost predominantly black, low-income municipalities millions.
The U.S. stock market had its worst day since October, fueling worries that American equities are valued at far more than their actual worth.