How Does Hylo Protocol Work?
Hylo Protocol is a Solana-based dual-token system that splits yield-bearing liquid staking tokens into hyUSD (a stablecoin earning ~15% yield) and xSOL (leveraged SOL with zero liquidation risk). With $26M TVL and rapid growth, it offers an innovative approach to stablecoin yield. Its C+ grade reflects the novelty of the dual-token leverage mechanism and its dependence on Solana LST stability.
TVL
$22M
Sector
Stablecoin
Risk Grade
C+
Value Grade
D
Core Mechanisms
1.4.1
NovelDual-token system splitting LST collateral into hyUSD (stable) and xSOL (leveraged long SOL)
While yield-splitting is not entirely new (Pendle-like), the specific implementation of splitting LST collateral into a stablecoin and leveraged token with dynamic leverage is a novel variant.
6.1.1
NovelLST collateral pool backing both hyUSD and xSOL with dynamic collateral ratio management
The collateral pool backing two distinct products with automatically adjusting leverage is a novel arrangement. Collateral TVL = (hyUSD Supply x hyUSD Price) + (xSOL Supply x xSOL Price).
6.3.3
Stability pool for hyUSD rebalancing during collateral ratio stress
Stability pool pattern seen in Liquity and similar CDP protocols. Users deposit hyUSD to earn yield while supporting rebalancing.
6.4.2
LST price feeds from Solana DEX TWAP for collateral valuation
Standard on-chain TWAP oracle for LST pricing on Solana.
7.2.1
Points program (Season 0) with XP tiers and crown rewards for hyUSD/xSOL minting and holding
Standard points-based incentive program to bootstrap protocol adoption; typical for Solana DeFi projects pre-TGE
How the Pieces Interact
As hyUSD holders redeem during SOL price decline, xSOL leverage increases automatically. At extreme leverage ratios, small further price drops could cause disproportionate xSOL losses and threaten the entire collateral pool.
If stability pool is undercapitalized during rapid SOL decline, rebalancing fails. Without sufficient stability pool depth, hyUSD peg cannot be maintained during stress.
All collateral is Solana LSTs. A Solana chain outage during volatile markets prevents rebalancing, minting, and redemptions, potentially allowing collateral ratio to breach critical levels.
TWAP oracle lags during rapid price moves. Stale LST pricing could cause incorrect collateral ratio calculations, leading to delayed rebalancing or incorrect mint/redeem pricing.
What Could Go Wrong
- Hylo splits yield-bearing LST collateral into a stablecoin (hyUSD) and a leveraged token (xSOL), where xSOL absorbs all price volatility. During severe SOL price declines, xSOL leverage can spike to dangerous levels, potentially threatening hyUSD peg stability if collateral ratio drops too low.
- The protocol relies on a stability pool where hyUSD holders deposit to support rebalancing of the collateral ratio. If stability pool participation is insufficient during rapid SOL price declines, the protocol may not be able to maintain the hyUSD peg.
- As a Solana-native protocol with ~$26M TVL, Hylo faces concentrated ecosystem risk. A major Solana outage during a volatile period could prevent critical rebalancing operations.
SOL Crash Triggering xSOL Leverage Spiral
ModerateTrigger: SOL price drops >40% within 48 hours, causing xSOL leverage to exceed 5x and stability pool capacity to be exhausted
- 1.SOL price drops 40% rapidly, xSOL token absorbs all losses from the LST collateral pool — xSOL leverage automatically increases from 2x to 5x+ as hyUSD redemptions reduce the collateral pool
- 2.hyUSD holders rush to redeem at $1, further reducing the collateral pool and increasing xSOL leverage — Stability pool participants absorb losses but pool depth proves insufficient for the magnitude of the decline
- 3.With stability pool exhausted, hyUSD begins trading below $1 as redemptions slow — hyUSD holders face losses as peg breaks, xSOL holders face near-total loss at extreme leverage
- 4.Remaining collateral is insufficient to honor all hyUSD at $1 and xSOL at fair value — Both token holders face losses; protocol TVL drops to near zero
Risk Profile at a Glance
Overall: C+ (39/100)
Lower score = safer