OTC Markets Group Inc. operator of financial markets for over 11,000 U.S. and global securities, today announced Gage Growth Corp. a vertically integrated, high-quality cannabis brand and operator in Michigan has qualified to trade on the OTCQX® Best Market. Gage Growth Corp. upgraded to OTCQX from the Pink® market. Gage Growth Corp. begins trading today on OTCQX under the symbol "GAEGF." U.S. investors can find ...