STOCK WATCH

Among 23 of the largest San Gabriel Valley-based companies traded on the New York and American stock exchanges and NASDAQ, six gained value, 15 lost and two remained unchanged Tuesday compared with the same day last week. Here is how six fared over the past week.

GAINERS

Tue. Point Company Price Change Avery Dennison Corp. 33.37 +1 5/8 Southern Cal. Edison 15.00 +1 1/8 Wesco Financial Corp. 117.00 +2 1/4

LOSERS

Tue. Point Company Price Change Jacobs Engineering 17.50 -1 3/8 Staar Surgical Co. 9.75 - 7/8 Marshall Industries 23.87 -1 1/4

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