Calamos Convertible and High Income Fund (NASDAQ:CHY – Get Free Report) was the recipient of a large increase in short interest during the month of July. Get Calamos Convertible and High Income Fund alerts:Calamos Convertible and High Income Fund Stock Down 2.9%Shares of CHY opened at $12.13 on Thursday. Calamos Convertible and High Income Fund Announces DividendCalamos Convertible and High Income Fund Company ProfileThe firm also recently announced a monthly dividend, which was paid on Tuesday, July 21st. (Get Free Report)The Calamos Convertible and High Income Fund (NASDAQ: CHY) is a closed-end investment company managed by Calamos Investments. See AlsoReceive News & Ratings for Calamos Convertible and High Income Fund Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Calamos Convertible and High Income Fund and related companies with MarketBeat.com's FREE daily email newsletter.