Internet Security Systems (ISSX) was up 16.3% in late morning after the e-business security company said it was reaffirming third-quarter guidance due to speculation over the effect of the Sept. 11 attacks.
Internet Security said it remains confident about the estimates and was most comfortable with the low end of its previously stated range.
In July, the company said pro forma earnings would be 1 to 3 cents a share, on revenue of about $52 million to $55 million.
The pro forma results include all severance and other costs associated with staff cuts during the third quarter and exclude acquisition-related charges. The company will post results on Oct. 17.