hBTC is live on Royco. That gives BTC Basis+ three new seats : Senior, Junior, and the Senior Liquidity Provider pool. The strategy does not change. The seat changes what you are paid, what you carry, and how you leave.
What tranching is
Royco is a non-custodial risk and liquidity tranching protocol. It takes a single yield source and splits it into three tranches, Senior, Junior and Senior Liquidity Provider, so that each depositor can pick the risk and liquidity profile that fits them. Every Royco market is built on one base asset (here hBTC). Senior and Junior capital are both invested in it, and its returns flow to the tranches according to the market's rules.
The arrangement between the three is simple. Junior provides first-loss coverage for Senior and is paid a premium for it. The SLP provides an exit pool for Senior and is paid a premium for that. Senior gives up part of its yield to fund both.
Tranching itself is an old idea, and the reason it exists is that one strategy can serve two audiences: those who want the higher return and accept the higher risk, and those who prefer a buffer and accept a lower return. The third tranche is the newer part. Many tranched assets carry a duration, while DeFi is built around liquid positions, so Royco added a tranche whose job is to keep Senior tradable.
The three tranches
Junior. Junior earns the base asset's yield plus the risk premium, in exchange for standing first in line if the strategy has a bad period. Its exposure scales with the coverage ratio, because both tranches are invested in the same asset. Junior also holds first claim on any recovery: whatever it absorbs becomes a claim on future gains, repaid before yield is distributed.
Senior. Senior earns the base asset's yield minus the two premiums it pays, and sits behind Junior capital that absorbs any loss first. It has two ways out. It can redeem, which claims its share of the market's collateral at full marked value and settles after a queue. Or it can sell into the SLP pool at the pool's current price, which is immediate.
SLP, the Senior Liquidity Provider. The SLP is a dedicated capital pool that provides constant secondary liquidity for Senior. It is not invested in the strategy directly. It is deployed into an AMM pool made of Senior shares and the market's quote asset, and that pool is where Senior holders go to exit. The SLP earns a liquidity premium paid out of Senior yield, trading fees, and the appreciation of the Senior shares it holds. Its outcomes are path-dependent: in a drawdown it ends up holding more Senior shares, which is a profit if the strategy recovers and a loss if the drawdown is realized. Because part of its assets are Senior shares, it sits behind the same Junior buffer that Senior does.
Two minimums, enforced by contract
A buffer is only useful if it is there. Royco enforces this with two per-market minimums rather than a promise.
Coverage is Junior capital as a share of the Junior plus Senior pool, and it defines how much of a drawdown Junior can absorb before Senior is touched. It is a hard constraint: if coverage falls below the market's minimum, new Senior deposits and Junior withdrawals pause until Junior capital returns to the required level. The minimum is set per market.
Liquidity is the size of the AMM pool available for Senior to exit into. If it falls below its minimum, new Senior deposits and SLP withdrawals pause in the same way.
How the yield is split
The premiums are not fixed. Royco prices the risk premium from coverage utilization, which measures how much Junior capital is currently backing Senior exposure. When Junior capital is scarce, more yield flows to Junior; when it is abundant, more flows to Senior. The liquidity premium works the same way, from liquidity utilization. Both curves target 90% utilization as their equilibrium. The APY shown on Royco's interface is the trailing APY, the annualized rate from yield actually accrued over the stated period.
The observation period
Strategies have bad weeks. Some markets add an Observation Period for them. When one is configured and a drawdown is detected, direct Senior redemptions, new Junior deposits and redemptions, and SLP redemptions pause, and all recovery in the base asset goes to restoring Junior first.
If the strategy recovers within the window, no loss is realized. If the drawdown persists past it, the loss is allocated to Junior. The window is set per market and shown on the market page. If a drawdown is deep enough to breach the market's Protected Exit Threshold, the Observation Period ends and Senior can withdraw its base assets, subject to the market's settlement delay. Beyond the Junior buffer, Senior carries the remainder.
Which one is for whom
Junior is for participants who know the strategy well, understand its volatility and its drawdowns, and want the highest return for carrying them, or for those who simply want the highest-risk, highest-return version. The SLP is for participants who want more than Senior yield and are comfortable trading away liquidity during an Observation Period, since SLP capital cannot be withdrawn for its duration. Senior is the lowest-risk seat of the three, with Junior capital in front of it and a pool to leave through at any time. It is also the seat lenders look at, because a Senior position can be unwound into the pool while keeping the Junior buffer in front of it.
None of this changes what hBTC is. The strategy, the fund and the administrator are the same on Royco as in the vault.
The market is at www.royco.org/market/8453/0x586d1d28d5f8aed81da8aef7016c4108f7a4ce51/underlying
More infos on the vault itself, read How hBTC Works. Regarding the partnership, see Syntetika Partners with Royco on Risk Tranching.
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