Better-than-expected earnings reports in a few big-cap tech stocks Friday fueled a Nasdaq rally, which in turn helped propel some other growth stocks to new highs. Amazon.com (AMZN) and Alphabet (GOOGL) were the stars of the day, gapping out of bases and trading at new highs. Both issued cheery quarterly reports after the close Thursday. Amazon rose 35.12 to close at 599.03. Alphabet gained 38.19 to close at 719.33.