Lyft shares dipped 3% after the rideshare company said it expects its revenue to come in at the lower end of its fourth-quarter guidance range, as Covid-19 cases continue to rise. "Based on these recent trends and the reintroduction of restrictive measures designed to curtail the spread of COVID-19 in select cities, Lyft now expects sequential revenue growth will be at the lower end of the 11-15% range in the fourth quarter of 2020," the company reported Wednesday in an 8-K filing. Lyft's rideshare business dropped about 50% year over year in November, which it attributed to rising coronavirus cases, according to the filing. Shares of its competitor, Uber, were also down slightly. Investors have viewed ridesharing companies primarily as travel stocks, putting it among the hardest hit segments due to the virus. Lyft's stock was down nearly 8% year to date. —Jessica Bursztynsky