Today's Bell Ringer, June 21, 2107

9:19 AM ET Wed, 21 June 2017

Today's bell ringers are Sebastien Lieblich, MSCI Inc. managing director, celebrating the tenth anniversary of G.I.M. methodology, and Jim Hawkings, Natus Medical president and CEO, and Jonathan Kennedy, Natus Medical executive vice president and CFO, at the Nasdaq.