Gauge (DeFi)

How It Works

Each eligible liquidity pool in a gauge-based protocol has an associated gauge contract that receives a share of the protocol's weekly or epoch-based token emissions. The share each gauge receives is determined by the proportion of veToken votes it attracts during the voting period.

At the start of each epoch (typically one week), veToken holders cast their votes for the gauges they want to receive emissions. After the voting period closes, emissions are distributed proportionally — a gauge that received 15% of all votes gets 15% of that epoch's emissions. Liquidity providers in that pool then earn those emitted tokens as additional rewards.

Gauge systems create a competitive market for emissions. Protocols and token projects that want to attract liquidity to their trading pairs lobby veToken holders through bribes, partnerships, or direct token accumulation. This competition ensures that emissions flow toward pools that the community (or the highest bidders) consider most valuable.

Why It Matters in DeFi

Gauges decentralize the most important decision in a DeFi protocol: where to direct incentives. Without gauges, a core team decides which pools receive emissions — a centralized approach prone to bias. With gauges, the community collectively decides through on-chain voting, creating a more efficient allocation of resources.

For traders and liquidity providers, understanding gauge dynamics is essential for maximizing yield. Pools receiving high gauge votes offer higher emission rewards, but this can change every epoch. Monitoring gauge votes, bribe markets, and protocol politics helps identify the highest-yielding opportunities.

Real-World Example

On Velodrome (the largest DEX on Optimism), veVELO holders vote each week to direct VELO emissions to specific trading pair gauges. A new stablecoin project wanting deep liquidity for its USDC pair might offer bribes to veVELO holders — paying $0.10 per vote to attract emissions worth $0.15 per vote to liquidity providers. This creates a profitable cycle where voters earn bribes, LPs earn emissions, and the stablecoin project gets the liquidity it needs.