Wednesday July 23, 6:55 am ET * Second quarter revenues of $89.5 million down 3%; diluted EPS of $0.30 increased 15%. * Second quarter operating margin up 230 basis points year-over-year to 14.9%. * Full year 2008 guidance ranges, as updated on July 14, 2008: -- Revenues: $375-$400 million. -- Diluted EPS: $1.25-$1.40. DANBURY, Conn., July 23, 2008 (PRIME NEWSWIRE) -- ATMI, Inc. (NasdaqGS:ATMI - News ) today...
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