 Vietnam index marks best week since April 10 Ayala Land biggest loser in Philippines Singapore Airlines sees FY net loss By Pranav A K May 8 Reuters - Vietnamese stocks jumped 2 on Friday on news that the Southeast Asian country was on course to revive its economy much sooner than most others, while Philippines was weighed down by telecom companies. Industrial companies Saigon Machinery Spare Parts and Ben Thanh Trading Service jumped about 7 each and led gains in the benchmark. Singapore shares reversed early gains to end nearly flat after index heavyweights, Oversea-Chinese Banking Corp and Singapore Airlines, reported dismal results. 