The company's S-1 lays the groundwork for what is widely expected to be one of the largest initial public offerings of the year, second only to Uber's IPO in May. It's also...Technologyread more
Fraud investigator Harry Markopolos' accusations extended beyond GE's management to actuaries, auditors and analysts who he claims overlooked billions in liabilities.Marketsread more
Trump's tweet comes a day after Apple put out a press release describing the money it spends on U.S.-based suppliers and vendors.Technologyread more
CNBC combed through Wall Street research to see which stocks are still a buy after their earnings reports.Marketsread more
President Donald Trump held a call on Wednesday with the CEOs of three major U.S. banks, according to people with knowledge of the situation.Marketsread more
Despite aggressive strides, Waymo needs one thing before their self-driving cars become a seriously useful transportation system: people. We talked to the ones closest to it.Technologyread more
Scientists say the smoke plumes, filled with megatons of tiny, harmful particles, could travel to other areas of the world and cause serious respiratory problems for people.Weather & Natural Disastersread more
Some Weight Watchers loyalists applaud Kurbo by WW. But nutritionists worry Kurbo promotes an unhealthy relationship with food during an especially impressionable time.Health and Scienceread more
Benefits from what President Trump called "the biggest reform of all time" to the tax code have dwindled to a faint breeze just 20 months after its enactment, writes John...Politicsread more
Epstein, 66, was found in his cell in Manhattan federal lockup Saturday morning and transferred to a nearby hospital, where he was subsequently pronounced dead.Politicsread more
Air travelers faced delays at U.S. airports on Friday afternoon after a computer issue snarled processing of international arrivals.Airlinesread more
So much for the rally. Oil will likely still head as low as $30, analyst John Kilduff told CNBC on Thursday.
"I still believe we're going to go to that $30 to $33 area, which is the low point from the financial crisis in 2008, 2009. What you saw over the past several days was technical in nature, a short squeeze. This volatility is a little crazy and I think that $30 target is a downside target is for technicians that are in this market," the founding partner of Again Capital said in a "Squawk Box" interview.
Read More Oil whipsawed on supply glut
U.S. crude tumbled 9 percent on Wednesday to settle at $48.45, erasing nearly all of its gains in the previous two sessions. The benchmark commodity—West Texas Intermediate—had soared 22 percent from a nearly six-year low of $43.58 last Thursday, ending the day at $53.05 on Tuesday.
The rally's sharp reversal spilled over into the stock market, with energy stocks leading the day's decline in the S&P 500.
Data on Friday that showed exploration and production companies had shut down 90 rigs in the prior week boosted the rally. Kilduff said that the industry had merely gotten rid of "the runts of the litter," noting that U.S. production had not fallen and still stands at 9.1 million barrels a day.
He said speculation that Saudi Arabia, the world's largest oil exporter, would agree to production cuts in order to reach a deal with Russia on the Syrian conflict also sent oil higher.
Read MoreOil pro: This is 'dead cat bounce'
Saudi Arabia's refusal to support cuts at a meeting of the Organization of the Petroleum Exporting Countries in November accelerated the rout. Meanwhile, Russia is facing the twin headwinds of falling oil prices and economic sanctions over its role in the conflict in neighboring Ukraine.
"People want to write off OPEC. You can't do that. They do still matter to a degree. A coordinated cut of some magnitude would stop the price slide," Kilduff said.
Fluctuations in currency markets and central bank action has also fed volatility in the oil markets. A strong U.S. dollar drives down oil prices because the commodity is bought and sold in the currency.
"At this point, FX volatility has become the prime driver in global volatility. You cannot make any investment decisions without actually understanding which way the dollar is basically heading," said David Woo, Bank of America Merrill Lynch's head of global rates and currencies research.
Forex volatility is at its highest level in 20 years for noncrisis periods, research from Bank of America released this week showed.
That volatility could continue as countries around the world engage in a currency war, he said. With nations facing fiscal constraints, the only tool available to central banks to stimulate growth is a weaker currency, he said.
"If everyone's playing this game you have no choice but to play it because otherwise you get left behind. We call it war because it's a zero sum game. Somebody wins, and somebody else loses," Woo said.
There's little the United States can do to stop the dollar from strengthening because the European Central Bank and the Bank of Japan are intent on spurring growth through monetary policy.
But the most important question for oil—and the biggest risk of 2015—is the prospect that China follows suit and moves to depreciate its currency.
"If China decides to play the same game, it will be a disaster because commodity prices are going to crash because China consumes 40 percent of the world's basic commodities," Woo said. "And then you're going to trigger a competitive devaluation around the world. The 10-year yield is going to go to 1.25 percent if China wants to devalue [its currency] 10 percent."