The Loncar Cancer Immunotherapy Index is a stock market index that tracks the performance of publicly traded companies that are involved in the development of cancer immunotherapies. The index was created in 2016 by Brad Loncar, a venture capitalist and cancer immunotherapy investor. The index includes companies that are involved in the development of cancer immunotherapies, such as vaccines, antibodies, and cell therapies. The index is designed to provide investors with a way to track the performance of the cancer immunotherapy sector.