Liquidity mining

Liquidity mining is the mechanism many decentralized finance (DeFi) protocols use to bootstrap trading depth. Instead of relying on professional market makers, a project rewards anyone willing to deposit assets into its liquidity pool with newly minted tokens, on top of the trading fees a liquidity provider already earns.

The model traces back to Compound, which in June 2020 began distributing its COMP governance token to lenders and borrowers on its money market. Within weeks the program pulled hundreds of millions of dollars into the protocol, and Uniswap followed that September with a large UNI distribution to historical liquidity providers. Together these launches ignited what the industry now calls "DeFi Summer," and imitators such as SushiSwap and Curve quickly copied the playbook.

In practice, a user first supplies a token pair to an automated market maker and receives an LP token representing their share of the pool. Many protocols let that LP token be staked in a separate rewards contract, which streams out the project's governance token over time, typically in proportion to the amount staked and how long it stays locked. Because governance tokens carry voting rights over protocol parameters, liquidity mining doubles as a decentralization tool, spreading control among early users rather than concentrating it with a small founding team.

The rewards are not risk-free. Token emissions can outpace real demand and crash in price, pools remain exposed to impermanent loss, and the underlying smart contracts can be buggy or exploited, so an advertised annual yield should always be weighed against these factors before committing capital.