A new class of immunotherapies is promising to radically alter the treatment of cancers and has generated excitement among investors for their groundbreaking potential. Now the Loncar Cancer Immunotherapy ETF provides a way for investors to bet on the sector through an exchange traded fund that consists of both Big Pharma and emerging growth biotechs leading the sector. We spoke to Brad Loncar, CEO of Loncar Investments and creator of the ETF, about the fund, why the focus on this narrow slice of the biotech world, and why he thinks immunotherapies will dramatically reshape cancer care in the years ahead.