https://www.reuters.com/article/us-atos-stock-regulator/as-stock-sinks-after-berenberg-error-atos-alerts-french-markets-watchdog-idUSKCN1RE1RX >Atos said on Tuesday it has alerted the French markets regulator after Berenberg withdrew its downgrade of the software company's stock, which briefly wiped almost 450 million euros ($503.42 million) off its market capitalization.