Of the 100 largest publicly traded companies...

Of the 100 largest publicly traded companies in Orange County, 18 gained value Thursday, 34 lost and 48 remained unchanged for the day. The following chart shows the five biggest percentage winners and losers among county companies’ stocks.

Thurs. Percent Company Price Change GAINERS Ceradyne Inc. $3.25 +8.3 Amplicon Industries 9.63 +7.0 Filenet Corp. 12.50 +6.4 Hycor Biomedical 5.38 +4.9 Diceon Electronics 5.50 +4.8 Thurs. Percent Company Price Change LOSERS MAI Basic 4 3.25 -10.5 Clothestime 4.38 -10.3 Gradco Systems 8.25 -9.6 DVI Financial 3.88 -8.7 SPI Pharmaceuticals 8.38 -6.9 Source: Newport Securities