USTBL is a tokenised share class of Spiko's US Treasury-bill money market fund, giving on-chain holders exposure to short-dated US government debt through a regulated European fund structure rather than an unregistered synthetic wrapper.
What USTBL does
Spiko is a French fintech regulated by the AMF (Autorité des marchés financiers), and USTBL represents units in an actual money market fund investing in US Treasury bills, alongside a euro-denominated sibling fund, EUTBL, holding European short-term debt. Unlike a rebasing stablecoin, USTBL's token price is designed to appreciate over time to reflect accrued interest, functioning more like a growing net asset value than a static $1 peg — closer in spirit to a tokenised bond fund than to USDC.
Because it sits inside a recognised EU fund wrapper rather than an offshore special-purpose vehicle, USTBL benefits from established regulatory oversight, custody arrangements and audit requirements that many RWA tokens lack. Spiko has expanded USTBL's availability across multiple blockchains, aiming to make regulated T-bill exposure usable as on-chain collateral or treasury management for DeFi protocols, DAOs and businesses holding idle stablecoin balances.
Risks worth knowing
USTBL's regulatory strength is also its main limitation: as an AMF-regulated EU fund, access and investor eligibility can be more restricted than for a freely tradable crypto token, and it isn't automatically available or compliant everywhere Spiko's smart contracts happen to be deployed. Investors should not assume EU regulation translates into blanket approval in every jurisdiction.
Underlying yield tracks US interest rates directly, so returns fall if the Federal Reserve cuts rates, and there's no principal protection beyond the credit quality of US Treasury bills themselves. On-chain liquidity for USTBL is considerably thinner than for major stablecoins, redemption ultimately depends on Spiko's banking and custody partners functioning as intended, and smart-contract risk sits on top of the traditional fund-operations risk any money market fund already carries.