The group's share price hit a year high of 132.5p in February, but has been on the slide for the past two months.
The current market capitalisation of the business is 148m.
"Their AGM statement [in April] was rather cautious. It was more 'jam tomorrow'," noted one City source. "Communisis has a history of trying to treat normal costs as exceptionals, and exiting those European businesses has involved some tricky costs. I think over the years investors have become a little tired of it. All of that suggests that Communisis is a business that shouldn't command a high rating and now it doesn't."
Exceptional restructuring and disposal costs resulted in Communisis making a 12.8m pre-tax loss on sales of 269.7m last year.
Shares in the group had recovered slightly to 102.5p as PrintWeek went to press.
Investors grow more cautious of Communisis
Shares in Communisis fell to a 52-week low of 100p last week.