Sanctum INF is the share token of the Infinity pool — Sanctum’s multi-LST liquidity engine on Solana that holds a rotating basket of liquid staking tokens (JitoSOL, bSOL, JupSOL, mSOL, dSOL, and 50+ partner LSTs) and automatically rebalances toward higher-yielding ones. INF holders earn a stack of three yield streams: (1) underlying staking rewards from every LST in the pool, (2) trading fees whenever someone swaps between LSTs through Infinity, and (3) MEV/priority-fee distributions from validators inside the basket. Because the AMM also acts as the exit liquidity layer for Sanctum’s partner LSTs, INF tends to spike during market stress — for example, INF yields briefly exceeded 25% APY in a single epoch during the bnSOL depegging event in October 2025, when swap volume through Infinity surged.
Unlike single-validator LSTs, INF is structurally diversified across the entire Sanctum LST ecosystem, so a slashing or depeg event in one underlying token has limited impact on the basket. INF is also natively integrated into Kamino, Jupiter Lend, and other Solana money markets, allowing it to be used as collateral or looped for amplified exposure. Live APY, pool composition, and underlying LST weights can be tracked at app.sanctum.so/infinity.
- Diversified LST basket exposure: INF spreads risk across 50+ Sanctum partner LSTs and rebalances toward higher-yielding ones automatically, removing the need to manually rotate between single-validator tokens.
- Three stacked yield sources: stakers earn base validator rewards + MEV kickbacks + Infinity AMM trading fees in one position, which is why INF consistently leads single-LST APY rankings on Solana.
- Near-instant exit liquidity: the Infinity pool acts as Sanctum’s universal AMM, letting holders swap INF back to SOL or any other supported LST in a single transaction without waiting for Solana’s 2-3 day unstaking cooldown.
- Stress-event upside: when one of the underlying LSTs depegs or volume spikes, Infinity captures additional swap fees, so INF holders historically benefit from volatility rather than getting hurt by it.
- Composable across Solana DeFi: INF is supported as collateral on Kamino, Jupiter Lend, and several leverage protocols — useful for layered yield strategies without unwinding the base position.
- Pool composition risk: INF inherits the combined risk of every LST inside Infinity — if a low-quality LST is added or a major partner depegs hard (not just briefly), the basket value can be dragged down.
- Variable APY tied to trade flow: a meaningful portion of INF’s yield premium comes from swap fees, so during quiet markets the APY can compress closer to the underlying staking baseline (~5.5-6%).
- Smart-contract surface: the Infinity AMM is custom infrastructure on top of standard SPL stake pools, adding a layer of code risk versus holding a single LST directly.
- Less transparent than single LSTs: the rotating basket structure means at any given moment you don’t have full visibility into exact validator exposure without checking the pool composition page.
- Solana network risk: all gains are denominated in SOL — extended Solana outages or validator downtime events affect the entire basket simultaneously, with no cross-chain diversification.