Mantle’s thesis is to serve as the distribution layer for onchain finance rather than a general-purpose Layer-2. This sharpened in Q1 2026 with major product launches across DeFi, RWAs, stablecoins, and AI agents. Aave V3 launched on Feb. 11, 2026, and scaled from zero to $547.1 million in TVL by quarter-end, driving DeFi TVL to an all-time high of $648.0 million. RWA TVL grew 27.4% QoQ to $247.5 million on Maple's syrupUSDT and Bybit's xStocks rollout, while Mantle Vault closed Q1 at $221.5 million in TVL by routing CEX-fronted stablecoin deposits into onchain yield. Mantle also deployed ERC-8004, AI Agent Skills, Agent Scaffold, and x402 payments via QuestFlow, assembling a complete agent stack on a single chain. The $2.4 billion Mantle Treasury began diversifying as MI4 entered the portfolio at $126.8 million and MNT concentration fell from 94.3% to 90.0%. The quarter's headline metrics moved the other direction: MNT fell 27.6%, daily active addresses dropped 54.5% to a network low, and fees declined 50.7%. User composition told a more constructive story, with 87% of daily activity coming from returning addresses and transactions per address climbing from 8.4 to 14.7, indicating a loyal core engaging more intensively even as new acquisitions slowed. The Q2 setup hinges on whether the institutional infrastructure built in Q1 converts that loyal core into broader chain activity, and early Q2 data suggest it has. Aave on Mantle crossed $1.4B in total market size by April, xStocks with Atomic RFQ activating institutional-grade execution, and the Arsia upgrade completed Mantle's transition to a full ZK Rollup. The Turing Test Hackathon launched with 600+ builders from 63 countries, introducing a new user acquisition channel beyond crypto-native DeFi participants.