Plume, an open finance platform focused on institutional assets, has launched its nBND vault, offering investors access to a tokenised structure backed primarily by the Fidelity Total Bond ETF (FBND).

The launch gives onchain investors exposure to a broader mix of fixed income assets through Fidelity’s actively managed bond fund. FBND invests primarily across investment-grade, high-yield and emerging markets debt, moving beyond the short-duration government securities that have dominated tokenised fixed income to date.

Plume said the product is intended to support the development of a broader onchain bond market rather than simply provide another source of yield. The company believes blockchain-based capital markets will need access to a wider selection of established financial assets if they are to develop beyond their current use cases.

The firm highlighted the expansion of tokenised US Treasuries as evidence of growing demand for onchain fixed income. The market increased from $12bn in April 2026 to $15bn by June, according to Plume. However, the company noted that this remains a small portion of the global fixed income market, which it puts at more than $100tn.

Plume said bringing more traditional financial assets onto blockchain networks will require greater collaboration between digital asset firms and established financial institutions. It argues that digital asset native infrastructure can provide programmability and accessibility, while traditional financial firms bring decades of experience managing investment products and assets.

The company said institutional interest in established assets that generate yield onchain is already evident, with nBND intended to build on that demand by introducing greater duration and active management to the tokenised fixed income market.

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