Billionaire investor Ron Baron told CNBC's "Squawk Box" why he thinks Penn National's investment in Barstool Sports will be a success.

Twitter surged after a big quarterly increase in users, but history shows the social media stock's rallies don't last.

Ark Invest's Cathie Wood said on "Squawk Box" that demand in China and falling battery costs will continue to boost Tesla's stock.

Cramer said he did not understand the market's enthusiasm for Virgin Galactic, which has more than tripled in the past three months.

"If you are a long-term investor, I would wait," economist Mohamed El-Erian said. "If you're a short-term tactical investor, there's a lot of opportunities out there."

"I would start to nip away at it on these kind of down days that we have," the Leuthold chief investment strategist said Wednesday.

The stock market just experienced one of its worst five-day drops ever, but the Dow is back up thousands of points in two days. History says that shouldn't be a surprise to investors.

Sen. Ted Cruz said a group of nine senators recently ripped into the Saudi ambassador to the United States in a conference call over its oil price war with Russia.

Since 1990, the Dow Jones Industrial Average and S&P 500 Index have bounced back in quarters that directly follow quarters when the S&P declined by 10% or more, according to market history.

It takes the market time to digest shocks. How investors reacted in months after the Lehman Brothers bankruptcy in 2008 offers a window onto why some remain reluctant to buy stocks.

The S&P 500 surged 12% last week, but the market has been up and down since. That is not a surprise based on recent crisis-era trading history for both the S&P and Dow Jones Industrial Average.

The chief investment officer of one of the country's biggest public pension funds said the government response to the coronavirus should be focused on supporting unemployed workers.

NBCUniversal's Peacock launches for Comcast subscribers on Wednesday. With more people staying at home streaming content, one analyst says the environment is primed for Peacock's rollout.

The #AllInChallenge from Fanatics founder Michael Rubin has enlisted celebrities and sports stars including Leonardo DiCaprio, ARod and Mark Cuban to fight COVID-19 food insecurity.

"The damage that is being done every day is enormous," Expedia and IAC Chairman Barry Diller told CNBC on Thursday.

The crazy action in crude oil futures was not the only recent extreme energy trade. The XLE was up over 10% last Friday. Here is how the Dow and S&P do one month after similar rallies since 2000.

Barrick Gold CEO Mark Bristow joins Squawk Box after the company reports earnings, to speak about the spike in demand for gold during the coronavirus crisis.

International investors believe coronavirus is truly a global phenomenon, and the entire global stock market has been taken down.

Despite enormous volumes, the U.S. trading system is holding up well, says the Securities and Exchange Commission's Brett Redfearn.

Should the virus spread in the U.S. as it is spreading in Italy, U.S. earnings could see similar declines.

The New York Stock Exchange is prepared for the possibility that someone working on its trading floor may contract coronavirus.

Companies have been slow to withdraw their earnings guidance, which makes estimating earnings for the S&P 500 nearly impossible.

Robert Whaley, who created the original VIX in 1992, says the most important thing for markets is to reduce the uncertainty around the coronavirus crisis.

George Milling-Stanley, who helped create the SPDR Gold Trust, says the precious metal is not just a hedge against inflation but against the unexpected.

Macy's won't be the last company kicked out of the S&P 500. Judged solely by market capitalization, many companies in the index appear in danger of being kicked out.

Accounting woes at Luckin Coffee led to a 75% decline in the Chinese company's stock on Thursday.

As companies deal with declining cash flow amid the coronavirus pandemic, they are likely to cut or even suspend dividends.

The United States Oil Fund, which invests in oil futures contracts, was guaranteed to be a losing bet over time, but retail investors piled into the exchange-traded fund, perhaps believing it was a bet on the spot price of oil.

Stocks were down slightly on Tuesday, but beneath the surface lies the continuation of a powerful rally.

Most companies are not giving earnings guidance, leaving investors and analysts in the dark, yet the market is still rewarding better-than-expected results.

The old saw, 'sell in May and go away' might not apply this year if the U.S. economy reopens smoothly.

At a time of short-term market panic about the coronavirus, Warren Buffett offers a new lesson on how to identify long-term stock winners. The key: a focus on corporate reinvestment.

"I hope it's not that bad, but we should assume it will be until we know otherwise," Gates wrote in an article published Friday in The New England Journal of Medicine.

The U.S. stock market appears primed for upside that could last longer than recent bounces, says Miller Tabak chief market strategist Matt Maley.

Susie Buffett sat next to someone who had just returned from a trip to Spain and subsequently rested positive for COVID-19, the Omaha World-Herald reported.

"Our death toll curve is now worse than when China was at the same stage," Haven CEO Dr. Atul Gawande tells CNBC.

Berkshire's phone has not been ringing with executives asking for rescue capital amid the coronavirus outbreak, Charlie Munger told The Wall Street Journal.

Instead, it will be Greg Abel, Berkshire's vice chairman of non-insurance operations, taking previously submitted questions with Warren Buffett.

Berkshire's cash pile has left investors wondering whether Warren Buffett has found some attractive investments after the market's record plunge.

Buffett made a lot of news at Berkshire's first virtual annual meeting on Saturday, including revealing that he sold all his airline stocks.

Warren Buffett said he is optimistic that the U.S. economy will re-emerge even after being dealt a body blow by the coronavirus pandemic.

Warren Buffett said Berkshire Hathaway is still sitting on its massive cash hoard because the conglomerate hasn't found a company to buy at an attractive price.

Warren Buffett has again ditched the airline sector as coronavirus threatens to be a challenge too big for him to stomach.

"My own sense is the Fed went too far in going into the high-yield market," the Allianz economic advisor told CNBC on Monday. "You get people who shouldn't be borrowing raising money."

Buffett praised the Fed for its actions to blunt the effects of the coronavirus but said he worries about the repercussions.

The momentum in the biggest U.S. technology shares supported the broader market.

As airline stocks tumble, investors in the U.S. Global Jets ETF (JETS) seem to betting on a further bailout for the group, says market researcher Dave Nadig.

Copper cools off. Is the red metal showing cracks? With CNBC's Seema Mody and the Futures Now traders, Brian Stutland from the CME and Anthony Grisanti at the NYMEX.

Blackstone's Joe Zidle on what to expect from the Fed. Crude gets crushed. And is copper showing cracks? With CNBC's Seema Mody and the Futures Now traders, Brian Stutland from the CME and Anthony Grisanti at the NYMEX.

Blackstone chief investment strategist Joseph Zidle predicts the Federal Reserve won't ease as much as Wall Street wants.