Mantle Index Four (MI4) is Institutional Crypto Fund, launched by Securitize and Mantle. It unlocks secure yield-enhanced exposure to diversified basket of digital assets including BTC, ETH, & SOL via regulated tokenized fund structure
MI4 is designed to meet rising demand among global allocators for professionally managed, regulated, and potentially yield-enhanced exposure to top crypto assets by market cap, without the operational complexity of direct ownership and custody.
As part of the launch, Mantle Treasury has committed $400 million as the fund’s anchor investment, reinforcing MI4’s role as a foundational building block for on-chain asset management and to advance the next generation of institutional digital asset products.
The MI4 Fund provides exposure to a diversified basket of digital assets, including BTC, ETH, SOL, and USD stablecoins/synthetic dollars, weighted by market cap and risk-adjusted. The fund rebalances quarterly and integrates staking strategies such as Mantle’s mETH, Bybit’s bbSOL, and Ethena’s USDe, aiming to enhance returns through DeFi-native yield without sacrificing compliance or investor protections.