Shares of Carvana putting in their worst day since going public five years ago as concerns over bankruptcy mount. Are there other former high-flyers that could also find themselves in similar trouble? Plus oil prices dropping and yields are falling, too. What do these moves say about the state of the markets and the economy?

Stocks dropped to kick off the week as markets digested the latest economic numbers and what they mean for the Fed. So does the recent market action suggest that there won’t be a Santa Claus rally this year? Plus the CEO of Slack announcing he’s leaving parent company Salesforce just days after the software giant said co-CEO Bret Taylor said he was stepping down too. Is this a sign of even more trouble ahead?