DeFi's total value locked (TVL) dropped by $45 billion in the first half of 2026, with monthly outflows recorded throughout the period, according to CryptoRank's on-chain analysis. By end of June, the sector's TVL had shrunk significantly from its early-year highs.
Only Two Chains Registered Growth
Among the top 10 blockchain networks, only Tron and Hyperliquid posted positive TVL growth. Tron's TVL rose roughly 5%, driven by its dominant role in USDT transfers and stablecoin settlements. Hyperliquid gained about 7%, linked to its prominence in on-chain perpetual futures trading.
Ethereum's TVL fell 43% but still led the DeFi space with $38.9 billion locked. Solana dropped 40.5% to $4.93 billion over the same period. Arbitrum suffered the steepest decline, with TVL sinking 55.3% to $1.3 billion.
Capital Outflows Mirrored Broader Market Correction
The DeFi exodus tracked the downturn in the broader crypto market. Bitcoin hit an all-time high above $122,000 in October 2025, lifting the total crypto market cap to $4.21 trillion. By end of June 2026, the total market cap had fallen to $2.15 trillion — a drop of nearly 50% from its peak. Bitcoin is down over 28% year-to-date; Ethereum, BNB, and Solana have lost 43%, 33%, and 43.5%, respectively.
Security Breaches Accelerated Losses
CryptoRank highlighted that a high rate of security breaches contributed to DeFi's unraveling. As of late June, the industry saw 121 attacks, resulting in total losses of nearly $942 million. The second quarter alone accounted for 85 incidents, with losses of about $775 million.
KelpDAO lost $293 million after a vulnerability in a LayerZero-based cross-chain bridge was exploited. Drift Protocol recorded $280 million in losses from a separate security breach. Together, these two incidents made up about three-quarters of all Q2 losses. The KelpDAO hack also affected Aave: hackers used stolen rsETH tokens with no underlying backing as collateral on Aave, borrowing funds and creating a gap that proved difficult to recover. Following the incident, Aave's TVL dropped from $26.4 billion to $14.3 billion — a 46% decline.