Tracked DEX volume reached $178.0 billion in May, with Solana claiming the top spot at $43.9 billion — edging out Ethereum's $36.4 billion and underscoring the chain's continued dominance in on-chain trading activity. Base came in third at $29.2 billion, followed by BNB Chain at $23.0 billion.
Why it matters
DEX volume is one of the cleanest proxies for real on-chain activity — it reflects where users and liquidity are actually deploying capital, not just where narratives are pointing. The concentration story is equally striking: the top 4 chains captured 74.4% of total May volume, while the top 10 accounted for 90.8%. That level of consolidation suggests the liquidity landscape is bifurcating fast — a handful of chains are pulling away from the rest of the field.
Solana's lead over Ethereum in raw DEX volume is a meaningful signal. It reflects the chain's low-fee, high-throughput environment attracting retail and bot-driven flow alike, while Base's third-place finish confirms Coinbase's L2 has become a serious liquidity venue in its own right.
Market impact
For traders and allocators, the concentration data matters as much as the headline number. Chains outside the top 10 are sharing less than 10% of total DEX volume — a structural headwind for liquidity depth on smaller ecosystems. Solana and Ethereum remain the primary on-chain battleground, but Base's rapid ascent is the subplot worth watching heading into the summer.
Source: [source](http://telegraph.controller.bot/files/8336652911/AgACAgIAAxkBAAI3j2ohPdf8RmQ19i8PvGCEHL-XjR-vAAI6GGsbTSkJSWWCEzwjzisUAQADAgADeQADOwQ)
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