Holding on during stock market roller-coaster was key to success, experts say Business Related Government policy In this photo provided by the New York Stock Exchange, traders work on the floor, Monday Feb. 22, 2021. THE CANADIAN PRESS/AP-(Courtney Crow/New York Stock Exchange via AP TORONTO – When the bottom fell out of North American stock markets a year ago, few investors would have imagined how unsettled the world would remain a year later, even after a massive financial rebound. People were in panic mode back in February and March of 2020, recalls Candice Bangsund, portfolio manager for Fiera Capital. “Investors were liquidating their portfolios aggressively in response to the uncertainty and the unprecedented nature of the pandemic,” she said in an interview. “As a result, a lot of investors likely missed the corresponding upturn that ensued.”