Breaking it down on the daily chart, apart from some huge movement for the FEI-USDC pair in mid-late May, there has also been a recent decline in fees lately.

The USDC-WETH pair tops the list in terms of volume and fees collected. We can see that USDC-WETH is by far the most traded. There is some huge volume for FEI-USDC on the third and fourth week of May and USDC-USDT pair on the second and third week of June

The top pairs in terms of fees collected are:

• USDC-USDT
• USDC-WETH
• WETH-USDC
• UNI-WETH
• AXS-WETH
• DAI-USDC
• FEI-USDC
• DAI-WETH

Uniswap incentivizes users to add liquidity to trading pools by rewarding providers with the fees generated when other users trade with those pools. The graph below shows the top 10 LP by fees collected, breaking it down on a daily and weekly basis: