Mateon Therapeutics (OTCMKTS:MATN – Get Free Report) and Bayer Aktiengesellschaft (OTCMKTS:BAYRY – Get Free Report) are both medical companies, but which is the superior stock? We will contrast the two companies based on the strength of their valuation, analyst recommendations, risk, dividends, institutional ownership, earnings and profitability. Volatility and Risk Mateon Therapeutics has a beta […]