 Aradigm OTCMKTS:ARDMQ and IRIDEX NASDAQ:IRIX are both small-cap medical companies, but which is the better business? We will contrast the two companies based on the strength of their risk, analyst recommendations, earnings, institutional ownership, valuation, dividends and profitability. Risk Volatility Aradigm has a beta of 3.11, meaning that its share price is 211 more ... 