Cabot Microelectronics

(CCMP) - Get Report

was down 18.3% in early afternoon. After the close Monday, the company warned that second-quarter revenue would fall short of first-quarter revenue by 15% to 20%. But the semiconductor supply company said revenue would still exceed the year-earlier figure by 40% to 45%.

Goldman Sachs

cut its 2001 earnings estimate to $1.80 a share from $2.05 and cut its 2002 outlook to $2.70 from $2.95.

Columnist Adam Lashinsky discussed Cabot in February.