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Protocol Fees

Protocol Fees

Sustainable revenue generation. Innovative yield.

Fees lay the foundations for a healthy and prosperous ecosystem. Not only do they unlock an avenue for Liquidity Providers to earn yield, they are a fundamental revenue source for the protocol.

At Beethoven X, we are uniquely positioned in our ability to generate protocol revenue due to an innovative mechanism that is independent of swap fees. Through interest bearing yield we can also generate a sustainable source of revenue from yield-bearing assets.

Swap Fees

Every time a trade takes place on the protocol, a swap fee is denominated in the pool's respective BPT. Each pool has its own swap fee uniquely set based on the underlying assets and AMM logic being used. A portion of these fees flow to liquidity providers and the other portion flows to Beethoven X.

The protocol sets a percentage fee to be taken from the total amount of swap fees collected on the protocol. This percentage fee is currently different for Fantom, compared to Optimism.

Interest bearing Fees

On any IB token deposited into a Liquidity Pool on the DEX, Beethoven X takes a fee on the yield generated. This innovative protocol fee ensures a sustainable source of protocol revenue that is purely a function of TVL; no longer is the protocol dependent on swap volume to ensure longevity.

This is unique to Beethoven X and Balancer, no other DEXs have the flexibility to utilize this mechanism.

Like swap fees, this interest bearing fee is applicable to both Fantom and Optimism.

Flash Loan Fee

A small fee is collected as interest if users utilise a flashloan on the protocol.

Summary of Protocol Fees on Fantom and Optimism

On both Fantom and Optimism, the percentage of the total fee that flows to the protocol is taken in different proportions. You can see the breakdown of fees below:

Fee typeProtocol Fee on FantomProtocol Fee on Optimism
Swaps25%50% (Half goes to Balancer)
IB Yield50%50% (Half goes to Balancer)
Flash loan0.03%0%

Protocol fees are collected in contracts known as the Protocol Fee Collector and are separated by chain. The contracts for Fantom can be found here and Optimism here.

Protocol Fee Distribution

Protocol fees are distributed on a monthly basis and are shared differently on each chain according to the following distribution model:


Gauge incentives for fBEETS holders30%


OP Grant matching25%
Treasury (veBal, vlAura, auraBAL)17.5%
Gauge incentives for fBEETS holders7.5%

Since the approval of BIP-28 fees sent to the treasury are bridged to the Ethereum network to be evenly split towards the purchase of veBAL, auraBAL, and vlAURA on a monthly basis.