The unique features of Sorrento are an expected EUA for their highly accurate Covid test as well as a being a company that is significantly shorted. The stock price is volatile moving from $7 to $12 within the course of six months. Sorrento, a San Diego company, also has an extensive pipeline and new patents that are nearly impossible to track for the average retail investor. The complexity of Sorrento and their negative profits, makes it more difficult to value than many companies on our list. In June, of 2020 Covi-Stix a highly accurate Covid test gained EUA approval in Mexico.