In a key achievement for decentralized finance (DeFi), Uniswap announced that Arbitrum, an Ethereum Layer 2 (L2) scaling solution, has become the first L2 to surpass $300 billion in trading volume on the Uniswap Protocol. This milestone, highlighted in Uniswap’s recent updates, underscores the growing dominance of L2 solutions in enabling scalable, cost-effective DeFi transactions. Alongside this, Uniswap researchers have collaborated with Circle and the Copenhagen Business School to publish a groundbreaking study on the