Protocol Comparison Brief

Yield tranching protocols.

Five chassis for splitting yield and loss. One read on which model fits an insurance vault.

Prepared by

Mike Blank · May 2026

Protocols covered

Royco Dawn · Infinifi · Strata · Covenant · Goldfinch V1

The thesis · in one page 02 / 09

Five chassis. One has actually been tested.

Royco Dawn and Strata are pure two-tranche chassis (Senior / Junior) layered on top of any underlying yield source.

Infinifi is a stablecoin issuer with a three-tier deposit waterfall that mimics fractional-reserve banking.

Covenant doesn't use the word "tranche" – it issues two ERC-20s per market (Yield Coin / Leverage Coin) – but the economics (residual absorbs first, debt absorbs second) are equivalent.

Goldfinch V1 is a per-loan Senior/Junior chassis applied to real-world private credit – each Borrower Pool tranched at origination, with a passive Senior Pool (FIDU) levering Backer first-loss capital ~4×.

The only proof point

Goldfinch is the only one of the five with documented real-world Junior loss absorption.

The other four are too new and operate on collateral profiles that haven't (publicly) generated a default that tested the waterfall.

At a glance

~$17.9M

Total writedown – the only proof point in the set

Across 3 documented defaults within Goldfinch V1, the only one of 5 evaluated chassis with real-world junior loss absorption.

The landscape · side by side 03 / 09

The comparison matrix.

Dimension	Royco Dawn	Infinifi	Strata	Covenant	Goldfinch V1
Core abstraction	Risk-tranching wrapper for any yield source	On-chain fractional-reserve stablecoin bank	Generalized 2-tranche structuring chassis	Permissionless leverage / credit marketplace	Tranched private-credit lending pools
Senior instrument	Senior tranche tokens (e.g., srRoyUSDC)	iUSD (base)	Senior token (e.g., srUSDe)	Yield Coin ("zToken")	FIDU (Senior Pool LP token)
Junior instrument	Junior tranche token	siUSD (liquid stake) → liUSD (locked 1–8 wk)	Junior token (e.g., jrUSDe)	Leverage Coin	Backer position per Borrower Pool
Loss waterfall	Junior absorbs from $1; Senior protected first-dollar	liUSD → siUSD → iUSD	Junior absorbs first, then Senior	Leverage Coin wiped → Yield Coin face-value reduced pro rata	Junior absorbs first; every payment pays Senior interest + principal before Junior
Senior yield source	Underlying yield, capped/protected	~8% APY on siUSD junior^*; iUSD itself non-yield	Guaranteed minimum benchmark + uncapped upside	Implied funding rate from Latent Swap AMM	Pro-rata share of pool interest, scaled by ~4× leverage and net of "leverage tax" subsidizing Junior
Junior yield source	Underlying yield + risk premium from Senior	14–15.7% APY on liUSD; 8% on siUSD^*	Risk premium from Senior + leveraged upside	Leveraged exposure to collateral price/yield	Headline borrower interest rate + GFI rewards
Yield-split mechanism	Dynamic utilization curve (Aave-style)	Fixed by tier	Junior-first cascade with senior floor	Market price of Yield Coin sets funding rate	Fixed leverage ratio per pool (typically ~4×)
Lockups?	No	Yes – 1–8 weeks on liUSD	No	No – both tokens are fungible ERC-20s	Yes – Senior Pool withdrawal queue; Backer capital locked through loan term
Underlying assets	Any yield source (lending, staking, RWAs)	Aave, Pendle PTs, Ethena sUSDe, Fluid	Ethena USDe; expanding to lending vaults, RWAs	Any collateral asset	Real-world private credit loans
Live products	srRoyUSDC, roywstETH, sroywstETH	iUSD / siUSD / liUSD	srUSDe / jrUSDe	Per-market Yield/Leverage Coin pairs; sUSDz Yield Fund	Borrower Pools + Senior Pool (V1); Goldfinch Prime (single-tier RWA wrapper)
Closest TradFi analogue	CDO / CLO senior-mezz-equity stack	Fractional-reserve bank with tiered deposits	CDO sr/jr tranching	Repo + total-return swap	Securitized loan tranches / mezzanine fund

*Infinifi yield figures captured 6 May 2026; rates are variable and update continuously on the protocol.

01 Royco Dawn

04 / 09

A two-tranche wrapper that sits on top of any yield source.

Mechanics

Senior: "smart-contract-enforced downside protection." Junior absorbs losses from the very first dollar – no deductible.
Junior: first-loss capital up to a defined coverage amount. Earns the underlying yield plus a risk premium paid by Senior in exchange for the protection.
Yield split is dynamic, not fixed. A utilization curve (Aave-style) reweights yield toward whichever tranche is undersupplied – when Junior capital is scarce, more yield flows to Junior to attract first-loss capital, and vice versa.
Observation period: a meaningful nuance – temporary mark-to-market drawdowns that revert don't trigger Junior loss recognition. Only persistent losses count, which prevents Junior wipeout from transient volatility.

Live vaults

srRoyUSDC Senior USDC

roywstETH wstETH-collateralized USDC borrow into srRoyUSDC

sroywstETH Looped / leveraged variant

Why it matters for an insurance vault

The observation-period logic is the single most insurance-shaped design choice in the set – it explicitly models the difference between a marked loss and a realized loss.

02 Infinifi

05 / 09

An onchain bank with a three-tier deposit waterfall.

A stablecoin issuer with a three-tier deposit hierarchy that mimics traditional fractional-reserve banking. Tranches are tied to stablecoin issuance, not wrapped vaults.

iUSD

Base 1:1 USD stablecoin · Most senior · Last to take losses

non-yield

siUSD

Liquid staked iUSD · Mid tier

~8% APY

liUSD

Locked iUSD, 1–8 wk exit · Most junior · First wiped

14.1–15.72% APY

Loss waterfall

Explicit, coded: in a hack or bank-run, liUSD holders are wiped first, then siUSD, then iUSD. The longer the lock and higher the yield, the earlier in the firing line.

Underlying allocation

Aave, Pendle principal tokens, Ethena sUSDe, Fluid. A reserve buffer stays unallocated to support redemptions. Reportedly ~$1.60 of Ethena exposure per $1 deposited.

The asymmetry

liUSD pays 2× the yield of siUSD but takes 100% of the first loss. The premium is for the firing-line position, not the lock duration alone.

03 · 04 Strata & Covenant

06 / 09

The purist chassis, and the one that doesn't call itself one.

03

Strata.

The most "pure" generalized tranching chassis of the four.

Senior (e.g., srUSDe): over-collateralized, yield-bearing, with a guaranteed minimum yield linked to a benchmark rate, plus uncapped upside.
Junior (e.g., jrUSDe): a "liquid insurance pool" for Senior. Absorbs volatility and loss first; receives a risk premium in return.
Yield flows junior-first on upside as well as downside – Junior captures upside amplification, Senior is paid its guaranteed minimum, then residual flows back.
Roadmap: launched on Ethena USDe; expanding to lending vaults, multi-strategy vaults, delta-neutral, tokenized private credit, RWAs.

Mental model BarnBridge / Saffron, with a more general-purpose chassis.

04

Covenant.

Not branded as tranching, but the economics are equivalent – and the senior-side loss rule is genuinely novel.

Yield Coin (zToken): a fully-collateralized debt claim – functions like a tradeable perpetual bond. Loss only if collateral falls below debt notional → analogous to senior debt.
Leverage Coin: residual claim on collateral. Captures upside above debt notional, and absorbs the first dollar of loss when collateral declines → analogous to equity / junior tranche.
Loss cascade: Leverage Coin holders absorb collateral declines first → on liquidation, Leverage Coin can be wiped → if collateral still fails to cover, Yield Coin face value is reduced pro rata across all holders – a flat haircut, not a time-priority hierarchical write-down.
Pricing: market-driven via a Latent Swap AMM. As LTV rises, Leverage Coin price falls and Yield Coin implied rate rises, attracting lenders – replacing cliff-style liquidations with continuous price-based adjustment.

The novel bit Pro-rata haircut on senior, not time-priority. Live on Monad / Monad Testnet.

05 Goldfinch V1

07 / 09

The most TradFi-style of the five – and the only one that's been tested.

The data below is relevant to Goldfinch V1, not to the existing product Goldfinch Prime.

How it works

Junior tranche (Backers): individual underwriters who manually evaluate each Borrower Pool. Provide first-loss capital. Earn the headline borrower rate plus GFI rewards.
Senior tranche (Senior Pool LPs): passive LPs deposit USDC into the Senior Pool and receive FIDU. The Senior Pool deploys across active Borrower Pools, levering Backer capital at ~4× by default – e.g., $200K of Backer capital pulls ~$800K of Senior Pool capital into the same pool.
Repayment waterfall: every borrower payment pays Senior interest + principal first, then Junior. Backers miss repayment first on any shortfall.
Yield split: Senior earns a lower net rate (leverage tax subsidizes Junior); Junior earns the headline rate plus underwriting rewards.
Underlying: real-world private credit – historically loans to fintech lenders in emerging markets (Africa, LatAm, SE Asia).

Note on Prime

Goldfinch's newer Prime product offers diversified exposure to institutional private credit funds (Apollo, Ares, Golub) on Base – a single-tier wrapper, not the V1 sr/jr structure. V1 is what's directly comparable here; Prime represents Goldfinch's strategic pivot away from active sr/jr tranching toward a fund-of-funds model.

Three documented defaults · The only real-world test

Default	Pool size	Total writedown	Backer wiped	Senior portion	Off-protocol
Tugende Kenya Aug 2023	$5.0M	$5.0M (full)	~$1.0M	~$4.0M (3.95% NAV)	DAO: $1M USDC from treasury
Stratos Oct 2023	$20.0M	$7.0M (REZI + POKT to $0)	~$4.0M (full junior)	~$3.0M	Warbler Labs backstopped both
Lend East Apr 2024	$10.15M	$5.9M (after $4.25M repaid)	~$2.0M	~$3.9M	None announced
Total	$35.15M	~$17.9M	~$7.0M (gross)	~$10.9M	–

*Approximate figures based on public defaults documentation.

Cross-cutting observations 08 / 09

Five chassis, sliced five ways.

01

Where is the first dollar of loss absorbed?

Royco Dawn / Strata: Junior tranche, by design, from $1.
Infinifi: liUSD (locked) holders.
Covenant: Leverage Coin holder for that market.
Goldfinch: Backers (Junior tranche), per Borrower Pool.

02

Who sets the senior/junior yield split?

Royco Dawn: utilization curve (algorithmic).
Strata: junior-first cascade with senior floor.
Infinifi: protocol-set per tier.
Covenant: open market (Yield Coin price → implied rate).
Goldfinch: fixed leverage ratio per pool (~4×) – neither algorithmic nor market-driven.

03

How general is the chassis?

Strata / Royco Dawn: wrappers over arbitrary yield sources.
Infinifi: purpose-built as a stablecoin issuer.
Covenant: per-collateral leverage marketplace.
Goldfinch: purpose-built for real-world private credit underwriting.

04

Liquid vs. locked

Fully liquid: Royco Dawn, Strata, Covenant.
Locked: Infinifi (to bucket risk tiers), Goldfinch (to match loan tenor).

05

Senior loss treatment when Junior is exhausted

Royco Dawn / Strata / Goldfinch: standard cascade – Senior takes losses next.
Infinifi: explicit three-step waterfall.
Covenant: distinctive – pro-rata face-value haircut across all Yield Coin holders, no time priority.

Mike Blank The takeaway

For the insurance vault

Goldfinch is the only chassis with documented junior loss absorption – but its waterfall logic, Royco's observation-period nuance, and Infinifi's tiered-deposit structure each map onto a different piece of an insurance vault.

5

Chassis evaluated

3

Goldfinch V1 defaults documented

~$17.9M

Total writedown across V1 history

~$7.0M

Junior (Backer) capital wiped