Threshold Network has upgraded its tBTC bridge, facilitating institutional investors like ETFs and hedge funds to engage with DeFi using Bitcoin while maintaining regulatory compliance. The enhanced bridge allows institutions to mint and redeem tBTC in a single gas-free transaction, supporting blockchains such as Ethereum and Arbitrum. Institutional Bitcoin holdings are estimated to exceed $400 billion, with ETFs comprising nearly 7% of the market. Threshold Network has processed $4.2 billion in bridge volume and holds $640 million in total value locked, ranking third in the Bitcoin DeFi sector.