Of the 100 largest publicly traded companies...

Of the 100 largest publicly traded companies in Orange County, 33 gained value Thursday, 34 lost and 33 remained unchanged for the day.

Tues. Percent Company Price Change GAINERS PDA Engineering $6.25 + 8.7 Provena Foods 4.88 +8.4 Medstone Intl. Inc. 4.50 +5.9 Emulex Corp. 5.00 +5.3 AST Research Inc. 20.38 +3.9 LOSERS Helionetics Inc. 3.75 -9.2 Viratek Inc. 3.25 -6.3 Amplicon Industries 9.00 -5.3 Filenet Corp. 13.75 -5.2 U.S. Facilities Corp. 4.63 -5.1

Source: Newport Securities