Giga-tronics Inc. (NASDAQ: GIGA), Giga-tronics is a publicly held company, traded on the NASDAQ Capital Market under the symbol "GIGA". Giga-tronics produces instruments, subsystems and sophisticated microwave components that have broad applications in defense electronics, aeronautics and wireless telecommunications. Giga-tronics Inc.'s stock more than doubled in premarket trading Tuesday after the announcement of a software licensing deal with Lockheed Martin. Under the terms of the agreement, Giga-tronics will develop and license threat simulation software as a commercial product to be used with its advanced signal generator hardware platform.