A screen displays the CAC 40 amongst stock tickers displayed at the headquarters of the Pan-European stock exchange Euronext, in La Defense district, near Paris, on March 9, 2020. - The Paris and Frankfurt stock exchanges fell more than 10 percent on March 12 afternoon trading after the European Central Bank unveiled a series of measures to shore up the eurozone economy but did not cut rates. The CAC 40 was down 10.2 percent to 4142.13 around 1340 GMT, while the DAX 30 in Frankfurt had tumbled 10.3 percent to 9,360.58. (Photo by ERIC PIERMONT / AFP)