Worst-performing tech stocks of 2015: Wave Systems Corp (NASDAQ:WAVX), Leap Frog Enterprises Inc (NYSE:LF), True Car Inc (NASDAQ:TRUE) http://www.wsobserver.com/worst-performing-tech-stocks-of-2015-wave-systems-corp-nasdaqwavx-leap-frog-enterprises-inc-nyself-true-car-inc-nasdaqtrue/7225768/