Sutro Biopharma (NASDAQ: STRO - Get Free Report) and Cardio Diagnostics (NASDAQ: CDIO - Get Free Report) are both small-cap healthcare companies, but which is the superior investment? We will compare the two businesses based on the strength of their earnings, analyst recommendations, dividends, institutional ownership, valuation, risk and profitability. Profitability This table compares Sutro Biopharma and