 NanoString Technologies NASDAQ:NSTG and Champions Oncology NASDAQ:CSBR are both small-cap medical companies, but which is the superior business? We will compare the two companies based on the strength of their profitability, valuation, earnings, institutional ownership, analyst recommendations, risk and dividends. Insider Institutional Ownership 49.6 of Champions Oncology shares are held by institutional investors. 5.1 ... 