GameStop reported better-than-expected profit, helped by sales of new releases such as "Mortal Kombat X" and "Evolve" and an increase in downloads.
A high-frequency trader has been charged with illegal market manipulation called "layering," contributing to the May 2010 flash crash.
Genesis Trading, which claims to be the first broker-dealer specializing in digital currencies, launched Thursday.
The Nasdaq Options Market resolved "system issues" that hit orders on some of its functions Tuesday afternoon.
Deutsche Bank Alternative Asset survey on top hedge fund investment strategies
According to Kensho, sports-related companies outperform the market in the first trading day after MIT's Sports Analytics Conference.
Activist Investor Carl Icahn thinks Apple is already worth over $1 trillion but others on Wall Street think it will take a few more years for the iPhone maker's stock value to get there.
Data from NYSE trading volumes show that there is no Super Bowl hangover, it's a myth, not reality.
Harley-Davidson's earnings slipped as a stronger U.S. dollar hurt the motorcycle maker's bottom line, which still topped analyst expectations.
ConocoPhillips on Thursday reported a fourth-quarter loss of $39 million, after reporting a profit in the same period a year earlier.
International Paper on Wednesday reported fourth-quarter earnings of $134 million.
3M on Tuesday reported fourth-quarter profit of $1.18 billion.
Rockwell Collins on Friday reported fiscal first-quarter net income of $167 million.
Kansas City Southern on Friday reported fourth-quarter earnings of $141 million.
Union Pacific on Thursday reported fourth-quarter profit of $1.41 billion.
Northern Trust on Wednesday reported fourth-quarter profit of $244 million.
UnitedHealth, the largest U.S. health insurer, reported a better-than-expected fourth-quarter profit as premium income rose.
Regions Financial on Tuesday reported fourth-quarter profit dropped by almost 4 percent to $211 million.
Historically, stocks go up in January as people start buying again. But is the January Effect still real?
U.S. drugstore chain operator Walgreen reported a 16 percent rise in quarterly profit, helped by a record number of prescriptions filled.