Solana hits $20B weekly perps volume

SantimentData said in a May 20 post on X that Solana-based perpetual decentralized exchanges had crossed $20 billion in weekly trading volume, adding to a burst of crypto discussion around derivatives, exchange-traded fund flows and stablecoin liquidity. DefiLlama’s Solana perps dashboard lists real-time perpetual DEX and futures volume for the chain, while third-party market reports published this week described the $20 billion mark as a record for Solana-based perps. The SantimentData post grouped that move with other themes traders were watching on May 20 and May 21: bitcoin custody through ETFs including BlackRock’s iShares Bitcoin Trust, signs of capital rotation toward ether, and the use of USDC for swaps and payments. BlackRock’s product page for IBIT says the trust is designed to reflect the price of bitcoin while simplifying the operational and custody issues of holding the token directly. (defillama.com) ### Where did the $20 billion Solana number come from? FinanceFeeds reported that Solana-based perpetual DEXs reached $20 billion in weekly volume during the week of May 18, 2026. Binance Square, citing NS3.AI data, also said weekly trading volume on Solana perpetual futures DEXs had surpassed $20 billion for the first time and identified GMTrade as a major contributor to the spike. (blackrock.com) DefiLlama’s Solana perps page does not itself frame the milestone in narrative terms, but it provides the underlying market category SantimentData and other crypto accounts were referencing. Based on those sources, the $20 billion figure refers to aggregated perpetual DEX trading activity on Solana rather than spot trading volume on centralized exchanges. ### Why were bitcoin custody and IBIT part of the same conversation? (financefeeds.com) BlackRock says IBIT gives investors exposure to bitcoin through an exchange-traded product and “simplif[ies] the operational and custody complexities” of holding bitcoin directly. That helps explain why ETF flows and custody were being discussed alongside on-chain trading activity: they describe different routes into crypto exposure, one through public-market fund wrappers and another through direct blockchain venues. (defillama.com) Bitbo, which tracks ETF holdings using public data, said IBIT held more than 806,000 bitcoin as of May 21. That figure is from a third-party tracker rather than BlackRock’s own page, but it shows the scale at which IBIT remained part of market discussion this week. ### What does USDC have to do with Solana trading? Circle says USDC on Solana is used for high-frequency trading, financial services and consumer payments. (blackrock.com) On its Solana network page, Circle listed total USDC supply on Solana at about $7.28 billion as of May 21, 2026. That makes USDC relevant to the same trading conversation because stablecoins are commonly used as collateral, settlement assets and swap pairs in decentralized markets. (bitbo.io) Circle’s description does not mention the $20 billion perps milestone directly, but it does show that Solana has a large base of dollar-linked liquidity available on-chain. ### Was this only a Solana story? SantimentData’s May 20 post did not frame the move as isolated to one token. (circle.com) The post, as summarized in the social briefing, also pointed to bitcoin ETF and custody discussion, capital rotation toward ethereum and ongoing attention on USDC usage. That made the Solana perps milestone part of a broader market snapshot rather than a standalone price call. May 21 reference points remain visible on the same public pages traders were using this week: DefiLlama for Solana perps activity, BlackRock for IBIT product details and Circle for USDC supply and use on Solana. (defillama.com) (blackrock.com)