OppFi CEO Jared Kaplan (OPFI) says his subprime lender is better than a payday lender, even with annual interest rates above 100%. Controversial biotech MiMedx Group (MDXG) suffers after a pair of failed clinical trials. Pool supply retailer Leslie's (LESL) struggles to find enough chlorine. Water utility Cadiz (CDZI) wades through a volatile week and the mystery selloff in its shares. The Drill Down with Cory Johnson offers a daily look at the business stories behind stocks on the move.