What is Uniswap (UNI)?
In a conventional exchange, every trade requires a counterparty — someone willing to take the other side. Uniswap removes this matching process altogether. It is a protocol that lets anyone swap tokens directly from their own wallet by trading against pools of assets locked in smart contracts.
How a mathematical formula replaced the order book
Uniswap belongs to a category of decentralized exchanges called Automated Market Makers (AMMs). Instead of an order book where buyers and sellers list their prices, it uses liquidity pools. Each pool holds a pair of tokens, and the ratio between them determines the price.
The core mechanism is a simple formula: x * y = k. This means the product of the quantities of the two tokens in a pool must remain constant after every trade. When someone buys one token from the pool, they must deposit the other token in return, which shifts the ratio and updates the price automatically. No central authority sets the rate; the math does.
Why the UNI token exists and what it controls
UNI is the governance token of the Uniswap protocol. Holding it means having a say in how the system develops — whether it is a parameter adjustment, a treasury decision, or a protocol upgrade. Voting power can also be delegated to other community members.
Yet the most persistent question around UNI is not about governance in the abstract, but about fees. The protocol generates substantial trading volume, and the fees from that volume have historically gone entirely to liquidity providers. A long-debated mechanism, often called the "fee switch," would redirect a fraction of those fees to UNI stakers. Whether and how this switch gets activated remains an open governance issue, and it sits at the heart of how the token's long-term role is understood.