Chainlink dominates L2 oracles
Chainlink shows near-total oracle dominance on major L2s — ~96% on Base and ~84% on Arbitrum — securing billions in value (e.g., $2.7B on Base, $2.4B on Arbitrum). That concentration makes Chainlink a critical dependency for rollup security and DeFi price feeds. (x.com/Altcoinbuzzio)
DefiLlama snapshots from Mar 29, 2026 list Chainlink’s Total Value Secured on Base at $2.176B and on Arbitrum at $1.775B. (defillama.com) On Base, Steakhouse Financial is the single-largest protocol secured by Chainlink with $742.16M (34.11%) and Aave V3 is second with $692.32M; those two together sum to $1.434B, about 65.9% of Chainlink’s Base TVS (calculation based on DefiLlama data). (defillama.com) On Arbitrum, Aave V3 represents $717.41M (40.41%) of Chainlink’s Arbitrum TVS, followed by Spiko RWA at $385.79M and GMX V2 at $237.6M; the top three total $1.341B, roughly 75.5% of Chainlink’s Arbitrum TVS (calculation based on DefiLlama data). (defillama.com) Pyth Network’s on-chain footprint on Arbitrum is tiny by comparison, with DefiLlama showing Pyth TVS at $5.65M versus Chainlink’s $1.775B on Arbitrum — a roughly 314x difference (comparison and ratio based on DefiLlama data). (defillama.com) Cross-chain concentration is skewed toward lending: CryptoRank’s aggregation of DeFiLlama figures reports Aave accounts for more than $70.9B of Chainlink’s secured value across multiple chains, making a single protocol the largest global contributor to Chainlink TVS. (cryptorank.io) A targeted outage or pricing-feed manipulation affecting Aave V3 on Arbitrum would put $717.41M of protocol value at risk on that L2, while a similar event at Steakhouse Financial would threaten $742.16M on Base, per DefiLlama protocol-level TVS listings. (defillama.com)
