While the stock market steadied after Thursday’s 10% plummet, Uber and Lyft each fell another 3%-4%. Their declines highlight a reality about the coronavirus-inspired stock selloff. The ride hailing firms have been among the worst hit of any of the tech stocks. Lyft and Uber have each lost 50% of their value in the past few weeks, about twice as much as the overall market. Lyft is now trading...