Salesforce CEO Marc Benioff said it was Rhode Island Gov. Gina Raimondo's idea to couple contact tracing with coronavirus testing as the software maker sought to launch Work.com.

"Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.

"These rules are safe and healthy for the customer, which is great, but there's simply no way most restaurants can possibly obey them without going right out of business," the "Mad Money" host said.

"[A]s the country gradually reopens, there are some industries that should do much, much better," the "Mad Money" host said.

"Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.

"We view this as a massive opportunity for us to drive trial and win consumers over into our segment," Beyond Meat CEO Ethan Brown said in a "Mad Money" interview.

"With this latest quarter, they've pretty much become the only game in town," the "Mad Money" host said.

"The staples and the retailers should be moving in opposite directions" meaning "somebody's wrong here," the "Mad Money" host said.

"Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.

Investing in a 401(k) is vital for us to make sure we are set for the future but here are some things you may have not known about your 401(k). CNBC's Landon Dowdy zeros in on what you need to know.

The economy is not that strong, says Jeffrey Hirsch, Stock Trader's Almanac, discussing market volatility and tracking movements in the Dow transports for signs of bear activity.

The outlook for U.S. restaurants in the near term is bleak, dominated by massive unemployment and closures, but Asia may provide a path forward.

The plan, entitled "Diplomacy Strong," includes policies on travel, telework, face coverings, as well as social distancing requirements for common spaces such as cafeterias.

The U.S. Federal Reserve is trying to keep the coronavirus crisis from becoming an extended financial crisis. And the Fed's measures go beyond anything the central bank did during the Great Recession of 2009.

Nordstrom announced earlier this week it will be permanently closing 16 of its department stores, after assessing each state that it operates in and the hit it is taking because of the coronavirus pandemic.

Both markets are responding, each in its own way, to the same accommodative Fed.

While some jobs won't be coming back after the lockdown, most, at least for now, will.

Amazon has been combating coronavirus-related issues on multiple fronts for the past several months.

Tesla shares hit $500 for the first time, and the trading history of Elon Musk's electric vehicle maker over the past five years shows the rally can continue.

Alphabet hit a $1 trillion market valuation, an elite status only Apple, Microsoft and Amazon previously touched. Gains for the Google parent are not about to stop, history says.

Utilities is now the stock market's best-performing sector this year, as the coronavirus sends investors into a defensive position. History says gains can continue.

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.

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

In periods leading up to Super Tuesday primaries that span a dozen states, stocks tends to sell off. That's not good news for a market already being tested by the coronavirus.

"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."

CNBC Beijing Bureau Chief Eunice Yoon reflects, as both a reporter and a Beijing resident, on what daily life has been like during the COVID-19 outbreak in China.

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.

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 Omega Family Office chairman and CEO said on CNBC's "Squawk Box" that taxes will need to go up regardless of who wins the upcoming presidential election.

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.

Closing the stock market amid the coronavirus pandemic might only amplify investors' anxieties.

Blaming short sellers is misguided. European countries have banned short selling but their markets continue to fall.

With the floor of the New York Stock Exchange closed as of Monday, trading will resume electronically.

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

Trading firms had two main concerns about traders working from home: Would the technology work and would traders be able to effectively interact with each other and their clients. So far, traders are adapting.

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.

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

A growing number of companies has nixed earnings guidance amid the coronavirus pandemic, and some in the corporate world say they should be dropped permanently.

"Know what you own" is an old adage when investing, but it is especially important when owning investments that hold futures contracts.

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.