I’ve been long Byrna Technologies Inc. (NASDAQ: BYRN ) for about 4½ years now , and this will be my tenth article on the company in that time. The road has certainly been rocky, and on a few occasions I’ve announced that I’mI'm a quant investment newsletter writer who marries fundamental analysis with the latest research in momentum. Over the past few years, I’ve developed a piece of software that helps me track the level of optimism and pessimism embedded in stock price. I seek to challenge the assumptions ...