Among 24 of the largest San Gabriel...

Among 24 of the largest San Gabriel Valley-based companies traded on the New York and American stock exchanges and NASDAQ, eight gained value, 11 lost and five remained unchanged Tuesday compared with the same day last week. Here’s how six fared over the past week.

Company Tue. Price Point Change GAINERS Jacobs Engineering Group $20.50 +2 1/4 Countrywide Credit 18.50 +1 1/2 Avery Dennison Corp. 30.38 +1 3/8 LOSERS Conversion Industries Inc. 5.50 -1 1/4 Tetra Tech Inc. 19.25 -1 Optical Radiation Corp. 21.00 -1

Source: Joe Lamas of Merrill Lynch, Pierce, Fenner & Smith Inc., Pasadena