Kamino, a popular Solana-based DeFi platform, has announced the launch of PT-USX on the Solana DeFi protocol Solstice Market. With the launch of PT-USX, issued by Exponent Finance, Kamino intends to boost the fixed-income network of Solana. As mentioned in Kamino’s social media announcement, the initiative enhances structured income options within the Solana ecosystem. Hence, the move makes Kamino, Exponent Finance, and Solstice the leading players contributing to the stablecoin-driven fixed income in the wider DeFi sector.
1/ PT-USX from @ExponentFinance is now live in the @solsticefi Market.
The asset joins PT-eUSX as part of Kamino’s growing fixed-yield integrations, and can be used as collateral to borrow USX or USDC and loop PT-USX yield.
A new step forward for fixed income on @solana 🧵 pic.twitter.com/rX4oYtrAat
— Kamino (@kamino) November 25, 2025
Kamino Unveils Exponent Finance-Issued PT-USX on Solstice Market
Kamino’s launch of PT-USX on Solstice Market denotes a key effort to widen the stablecoin-based fixed-income platform of Solana. Thus, the Exponent Finance-issued PT-USX has become the new fixed-income asset that has now joined PT-eUSX, which accounts for over $13M in its total value locked (TVL). This partnership among Kamino, Solstice, and Exponent Finance is getting significant attention among the most effective stablecoin-based income layers within the Solana ecosystem.
In addition to this, while PT-USX is maturing on the 9th of February, it provides a nearer-term fixed remit, presently yielding nearly 16.5% APY. So, consumers can borrow $USDC or $USX against the position while having an eighty percent loan-to-value ratio. This enables up to five-times leveraged looping plans to enhance fixed-yield exposure.
The issuer of PT-USX, Exponent Finance, is a protocol that has been audited several times by Certora, Offside Labs to ensure transparency and high security. It transforms yield-bearing assets such as $USX into significantly structured income products to split variable and fixed components into Yield Tokens (YTs) and Principal Tokens (PT). PTs have the purpose of locking in fixed yield till its maturity, whereas YTs keep track of variable returns, letting traders speculate on yield conditions in the future. Kamino users can leverage PT-USX as a collateral-ready, predictable instrument with a steady return profile.
Collaboration Underscores Major Move to Advance Scalable Fixed Income On-Chain
According to Kamino, the integration boosts Kamino’s status among the top next-gen venues providing organized income strategies within the Solana ecosystem. A crucial factor of the respective expansion is the in-house PT oracle mechanism of Kamino to deliver manipulation-resistant and robust pricing. Overall, Kamino, Solstice Market, and Exonent Finance’s collaboration highlights a huge move to scale foreseeable on-chain income.
