Exfo Inc (EXFO) falls 1.33% Posted on May 07, 2021 By News Team Exfo Inc (NASDAQ: EXFO) shares fell -1.33% to end trading Thursday at $3.72 per share – a net change of $-0.05. Shares traded between $3.80 and $3.70 throughout the day. 6719 shares of Exfo Inc exchanged hands.