The stock market fell another 3% on Tuesday, following Monday’s sell-off. Bond yields touched record lows.

The big picture: Stocks continued to fall as the CDC said it expects the coronavirus to spread in the U.S. The Dow and S&P are more than 7% below the record highs seen earlier this month.

Bernie Sanders is poised to become an economic scapegoat for both the White House and Corporate America, assuming that Sanders comes through Super Tuesday unscathed.

The big picture: If the U.S. economy remains strong, President Trump and CEOs will claim credit (as they've been doing for three years). If it turns sour, they'll blame Bernie (even though it's a largely baseless charge).

Shares of the newly-combined ViacomCBS dropped a startling 15% last week, after the company announced plans for a new streaming service during its first earnings report as a combined entity.

Why it matters: The company is now worth far less combined ($17 billion in market capitalization) than the two companies were worth separately (around $30 billion) prior to their merger.

As someone has certainly told you by now, the Dow fell by more than 1,000 points yesterday, its worst day in more than two years, erasing all of 2020's gains. Most news headlines assert that the stock market's momentum was finally broken by "coronavirus fears," but that's not the full story.

What's happening: The novel coronavirus has been infecting and killing scores of people for close to a month and, depending on the day, the market has sold off or risen to record highs.

Wall Street had its worst day in two years on Monday, following a spike in coronavirus cases in South Korea and Italy. The S&P 500 fell 3.3%, the Nasdaq Composite fell 3.7% and the Dow Jones Industrial Average sunk 1,030 points (3.5%).

The big picture: This is the U.S. stock market's biggest reaction thus far to the coronavirus, largely shrugging it off as a threat to the global economy (though the bond market has not). While the S&P is down from record highs — which it notched last week — the index is still above lows touched earlier this year.

U.S. private equity returns fell just below S&P 500 returns for the 10-year period ending last June, according to a report released Monday morning by Bain & Company.

Why it matters: Private equity markets itself as beating public markets over long-term time horizons, and usually providing an illiquidity premium to boot. These new performance figures not only dent such claims, but provide fresh ammunition to critics of public pension investment in private equity funds.

Trading volume at online and discount brokers like TD Ameritrade and the recently acquired E*Trade has exploded over the past year, Bloomberg reports, with TD Ameritrade alone having seen million-trade days multiplying at a "record pace."

What's happening: So-called mom and pop retail investors are chasing the U.S. bull market via online brokerages, thanks largely to top brokerage firms cutting trading fees to zero.

New cases of the novel coronavirus have rocked asset prices in Japan, South Korea and Italy, as those nations and others have ratcheted up emergency efforts to contain the outbreak.

What's happening: Asian stock markets continued to tank overnight, as South Korea's Kospi dropped nearly 4%, Australia's ASX fell by 2.3% and Hong Kong's Hang Seng declined by 1.8%. MSCI’s index of Asia-Pacific stocks outside Japan touched its lowest since early February.

Warren Buffett released his annual letter to Berkshire Hathaway shareholders on Saturday morning, sharing investment reflections and eyeing the future of the Omaha, Nebraska-based holding company and the market at large.

Details, via Axios' Courtenay Brown: Buffett turns 90 this year, though there’s no indication he plans to step aside, there is speculation about Buffett’s successor. Berkshire also notably exited the newspaper business last month.

While many tech companies are still apprehensive about going public and all the scrutiny that comes with that, ex-Glu Mobile CEO Niccolo de Masi just listed a special purpose acquisition corporation (SPAC) on the New York Stock Exchange, raising $200 million.

What’s next: De Masi, along with co-sponsor and former EMC executive Harry You, wants to create the next great mobile app-focused public company via this vehicle, he tells Axios. Think of it as Match Group, but for a different app category.