John Melloy is a Senior Editor for CNBC.com, covering investing, markets and the economy. He was the executive producer of CNBC's "Fast Money" and the "Fast Money Halftime Report" until October 2013. He was previously chief executive officer of StockTwits.com before returning to CNBC. He began his career at Bloomberg News in 1999 and was team leader of U.S. stock market coverage there before leaving for CNBC in 2006 to help launch "Fast Money."
Morgan Stanley downgrades shares of Snap just 5 months after the firm helped take the once hot media stock public.
The Oracle of Omaha invested in Bank of America when it was struggling in the wake of the financial crisis.
The Fed is raising rates even though part of its dual mandate argues against doing so.
Citigroup's CFO said second-quarter trading revenue will be down by as much as 13 percent.
Mizuho downgraded Apple to neutral from buy Sunday. The Nasdaq 100 dropped more than 1 percent Monday.
Goldman Sachs believes this odd mix of decent economic growth, yet declining interest rates can't last.
Hedge funds on average returned just 3.5 percent this year through May, according to HFR.
When stocks, bonds and gold have moved higher together in a three-month period, stocks kept rising the next three months.
If you applied the same P/E ratio to Apple as the rest of the stock market, the shares would be 19 percent higher.
Bill Ackman gave his first response to CNBC after Herbalife lowered its sales guidance for the current quarter.