- liquidity infrastructure
- contribute more than $640M to balancer's tvl
- one of the many technical components of balancer's flexible amm framework and essential for token like stables or lsds
- these pools are designed for assets that are either expected to consistently trade at near parity, or at a known exchange rate
- pools use stable math, based on stableswap (populatized by curve finance)
- reinforced by balancer's nested pool v2 infrastructure, metastable pools have a myriad of benefits compared to a standard pool 2: correlated token liquidity utilization, reduced liquidity fragmentation of like-assets, capital efficiency.
- use cases include: bb-g-USD, wstETH, and bb-i-USD.
- protocols like gearbox, lido, and idle continue to expand on the capabilities of metastable pools.
- best assets are either pegged or correlated (e.g rETH and boosted pools like bb-g-USD).
- token swaps can occur between any and all nested pools within balancer (e.g. aave boosted pools and rocket pool lsd eth).
- each pool has a function known as a rate provider that updates tokens to the correct ratio any time a trade takes place. this function means that liquid staked yield flows to liquidity providers rather than arbers.