Viewlogic, which produces computer aided engineering software, saw its stock close at 9-7/8, down 1-5/8 from the previous day.
The stock recovered somewhat by the market's close, after falling 20.6 percent to 9-1/8 during the day.
The company said it will post revenue of $34 million and earn between 14 to 18 cents a share. Wall Street analysts had been expecting the company to earn 23 cents a share, based on Zacks Investment Research.
Viewlogic during the second quarter had reported earnings of $2 million, or 12 cents a year, compared with $1.5 million, or 9 cents per share, a year earlier.
The company had posted revenues of $32.5 million for the quarter, up from $29.1 million a year ago.