An exchange-traded fund tracking trillion dollar assets, including tech and crypto-related companies and products, debuted on Tuesday, the latest ETF to give U.S. investors exposure to the fast-growing digital asset and AI space.  Miami, Florida-based Defiance ETFs' Defiance Trillion Dollar Club Index ETF, which trades as TRIL, tracks the performance of the BITA Trillion Dollar Club Index, or "trillion dollar club," an index made up of companies such as Nvidia, Tesla, Microsoft, Apple, Alphabet, Amazon, and Meta Platforms.