[BIP-193] Enable bb-yv-USD Gauge [Ethereum]

PR with payload


This pool uses the ComposableStablePoolFactory-v3 and is composed of three Yearn Finance linear pools. The underlying tokens are USDC, DAI, and USDT. These will each be wrapped through Yearn’s stable coin vaults to earn LPs additional yield. This gauge would enter as a “core pool” under BIP-19, meaning protocol fees earned by this pool would be used to bribe for votes on it. The gauge can be uncapped based on the contents being all large cap stable tokens. Yearn offers several yield sources and is also deploying yBAL, a veBAL liquid wrapper, in the near future. Deepened ties with Yearn, with this pool as a flagship, showcase the mutually beneficial aspects of the protocols.

References/Useful links:

Yearn: Link to:
Github Page
USDC: Link to:
Github Page
Communities - Coingecko link

Protocol Description:

Yearn finance utilizes Defi yield aggregation to generate optimal returns for their user’s to deposit digital assets and receive yield. The vault strategies emphasized in this pool are handled by the team at Yearn who determine the best yield sources for the deposits to be allocated towards. More information on Yearn’s strategies is described here. USDC is the dollar backed stablecoin issued by Circle. DAI is the decentralized overcollateralized stablecoin by MakerDAO. USDT is the dollar backed stablecoin issued by Tether.


Balancer’s ability to increase capital efficiency using linear and boosted pools is taking shape across the protocol. This Yearn boosted pool fits Balancer’s initiative to be a protocol where LPs can safely tap into external yield sources, while maintaining effective liquidity for swapping. This will earn both LPs and the DAO yield and provide Idle with a place for their wrapped tokens to easily be swapped and deposited as the pool increases in TVL.


  1. Governance: USDC are centralized and does not have a governance forum. DAI is collateralized by MakerDAO. Yearn’s governance details can be seen here.
  2. Oracles: This pool only relies on the rate providers of the linear pools to inform when yield is earned.
  3. Audits: See Yearn’s here
  4. Centralization vectors: USDC is inherently centralized.
  5. Market History: See USDC here. and Yearn here.
  6. Value: LPs & Balancer will earn the protocol fee on underlying bb-yv-USD as well as swap fees. BIP-19 will incentivize TVL to continue to grow here with trading volume and this implementation will continue to draw in new volume, as well as showcase the power of these pool types.

Link to pool: 0x20b156776114E8a801e9767D90c6ccCCc8Adf398
Link to gauge: 0x29C6361Af40fc1B6585ce0885319511dF4450a8E


The DAO Multisig 0x10A19e7eE7d7F8a52822f6817de8ea18204F2e4f will interact with the AuthorizerAdaptor at 0x8F42aDBbA1B16EaAE3BB5754915E0D06059aDd75 and call performAction with the GaugeController at 0xC128468b7Ce63eA702C1f104D55A2566b13D3ABD for the target(address) argument and using 0x3a04f900 followed by the gauge address 0x29C6361Af40fc1B6585ce0885319511dF4450a8E and the corresponding gauge type for the data(bytes) argument.

data(bytes) : 0x3a04f90000000000000000000000000029c6361af40fc1b6585ce0885319511df4450a8e0000000000000000000000000000000000000000000000000000000000000002


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