 Shares of Vroom Inc. VRM, -1.94 fell more than 5 in the extended session Monday after the online used-car retailer reported mixed fourth-quarter results, posting a wider-than-expected loss and sales that were above expectations, and called for lower-than-expected sales in the current quarter. Vroom said it lost 130 million, or 95 cents a share, in the quarter, compared with a loss of 61 million, or 44 cents a share, in the year-ago quarter. 