Sei Network’s decentralized exchange volume has reached $15.9 billion in cumulative terms. The milestone landed on October 19, 2026, and puts the trading-focused blockchain within shouting distance of the $16 billion mark.
The numbers behind the milestone
Sei is a Layer-1 blockchain that emphasizes low-latency execution, meaning trades confirm quickly enough to suit active traders. Over the 30 days leading up to October 19, Sei recorded $278 million in DEX volume.
Saphyre, the chain’s leading decentralized exchange, accounted for about $276 million of that total. Every other DEX on Sei combined handled roughly $2 million.
Sei’s 24-hour DEX volume currently sits at $6.61 million, up 15.41% on a weekly basis.
Total value locked, the pool of assets deposited into the network’s DeFi applications, stands at approximately $31.71 million. The past month’s trading volume ran to nearly nine times the capital sitting in Sei’s protocols.
From DragonSwap to Saphyre
Saphyre evolved from DragonSwap, an earlier exchange on the network, and has processed more than $6.6 billion in DEX volume on Sei over its lifetime. That means one venue and its predecessor account for more than 40% of all the trading volume Sei has ever recorded.
Sei passed $4 billion in cumulative DEX trading by early 2025, and the network logged multi-billion-dollar trading periods during that year. Getting from roughly $4 billion to $15.9 billion in under two years means the cumulative total has nearly quadrupled.
Background: a chain built for traders
Sei’s Pacific-1 mainnet went live in August 2023. The launch came alongside an airdrop of the SEI token, the network’s native asset, which handles transaction fees, network staking, and governance.
Sei Labs raised close to $35 million from investors including Multicoin Capital and Coinbase Ventures. The company was founded by Jayendra Jog, a former software engineer at Robinhood, and Jeff Feng, who has experience in investment banking at Goldman Sachs and venture investments at Coatue.
What this means for Sei and its users
The concentration is the obvious caveat. When one exchange processes about $276 million of $278 million in monthly volume, the network’s trading activity is effectively a bet on that single protocol continuing to operate smoothly.
At approximately $31.71 million, the TVL base is small relative to the volume running through it. Whether TVL grows alongside volume or stays flat is worth tracking.
The weekly uptick of 15.41% in daily volume is a modest positive signal. More trades mean more transaction fees paid in SEI, and a busier network gives stakers and governance participants more to oversee.
Disclosure: This article was edited by Estefano Gomez. For more information on how we create and review content, see our Editorial Policy.