In 1991, Enix registered its stock with the Japan Securities Dealers Association, later known as JASDAQ. Enix soon began publishing manga from its shonen magazine "Monthly Shōnen Gangan". The company established ties with more video game developers and would go on to publish several games for fourth, fifth, and sixth generation game consoles. Despite the announcement that Enix's long-time competitor Square Co., Ltd. would develop exclusively for Sony PlayStation, Enix announced in January 1997 that it would release games for both Nintendo and Sony consoles. This caused a significant rise in stock for both Enix and Sony. By November 1999, Enix was listed in the Tokyo Stock Exchange's 1st section, indicating it as a "large company."