Invest 30ETH into UNI token
Uniswap holders voted (near-unanimous) to turn on the fee switch on 3 liquidity pools for a period of 4 months after which they will vote to keep it on or not.
Here is the governance vote: https://snapshot.org/#/uniswap/proposal/0xe9f8e5dd7ec26f7c0e7dd9e19bb8d57497d27d4a74be01cd3cad159cf3901b7f
Opportunity: First time the protocol will generate profit. The 3 pools activated would have generated $3.48M-$7.82M annualised. If fees are activated on all pools this would have generated $120.8M
Risk: Liquidity moves to other DEXs (unlikely since all other major DEX take a cut of LP fees)
For more in depth review of the opportunity you can refer to this comprehensive Bankless article: https://newsletter.banklesshq.com/p/what-if-uniswap-turned-on-the-fee