Adobe, Blackberry, H-P head up tech gains By: MarketWatch March 20, 2013 at 10:16 AM EDT Software company gets lift on upbeat earnings, while smartphone maker benefits from Morgan Stanley upgrade and H-P rises ahead of its shareholders’ meeting. Read More >> Related Stocks: Adobe Systems Apple Hewlett-Packard Model N Inc PHLX Semiconductor Sector Index Yahoo Zynga Inc Cl A