Sei (SEI): What It Is, Uses and Risks

Sei is a Layer 1 blockchain, meaning it runs its own network of validators and records its own transactions rather than sitting on top of another chain. Its project description presents it as a high-performance chain that scales the Ethereum Virtual Machine (EVM) through parallelized execution. In plain terms, many transactions can be processed at the same time instead of strictly one after another, which is meant to give faster confirmation and low fees.

The chain aims to stay compatible with Ethereum tools, so developers who already write smart contracts for Ethereum can deploy on Sei without starting from scratch. Public descriptions say the network launched in 2022 and was first built with trading and the exchange of digital assets in mind. Its institutional messaging today points to high-frequency trading, stablecoins and payments, and tokenization of real-world assets.

The project also describes an upcoming upgrade called Giga, which it says targets a 50x improvement in EVM throughput by reworking execution, consensus and storage. That is a stated goal from the project, not a verified result, and timelines for upgrades like this can shift. The ecosystem includes apps in DeFi, gaming and infrastructure.

SEI is the native token of the Sei chain. Public explainers list several functions. The first is paying network fees: every transaction or smart contract call on the chain needs a small amount of SEI to cover its cost.

The second is securing the network. Sei is generally described as a proof-of-stake chain, where holders can delegate tokens to validators and earn rewards in return for helping secure the network. Staking rewards and rules can change through governance, so check the current terms in a wallet or staking interface before relying on any figure.

The third is governance. Token holders who stake can usually take part in votes on protocol changes, though how much influence any one holder has depends on how much is staked and how it is delegated.

SEI is also commonly used as a base asset in the apps on the chain, for example as one side of a trading pair or as collateral in lending markets. Specific app uses vary by project and change over time, so it is worth reading each dApp's own documentation. Holding SEI does not give a claim on any company's revenue or assets.

According to the data available, the total supply of SEI is 10 billion tokens. About 6.73 billion of those were circulating as of 2026-11-05, which is roughly two thirds of the total. No hard maximum supply is listed, so it is not clear from this data whether the 10 billion figure is a permanent cap or could change through governance or protocol rules.

The gap between circulating and total supply matters. Tokens not yet in circulation are typically held in vesting schedules, treasuries or ecosystem allocations, and they can enter the market over time. That is why the fully diluted valuation, about $479.7M at the time of writing, sits well above the market capitalization of about $323.0M. The fully diluted figure assumes every token in the total supply is already trading at the current price.

This page does not set out the exact allocation split between team, investors, community and ecosystem funds, or the unlock calendar, because those details are not public supplied. Anyone who wants them should read the project's official tokenomics documentation and check on-chain data for current staking and inflation parameters.

SEI is the native asset of the Sei chain, and the data lists no other chains where it is the original issue. Users hold it in a wallet that supports the Sei network. Because Sei offers EVM compatibility, popular Ethereum-style wallets can generally be pointed at the network, and the project's own quick start guide describes setting up a wallet, getting tokens, bridging from another network, or transferring from an exchange.

The chain has been described as supporting both Ethereum-style addresses and its own native address format. Mixing these up when sending funds is a common source of confusion, so confirm which format a platform expects.

In general terms, SEI is traded on centralized exchanges, where it can be bought or sold against other crypto assets or stablecoins, and through decentralized exchanges on the Sei ecosystem itself. Wrapped or bridged versions of SEI can appear on other networks, and those are different assets with their own bridge risk. Trading volume was about $38.5M over 24 hours as of 2026-11-05, which gives a rough sense of how liquid the market is. Liquidity can be thinner on some venues than others.

Sei's market history has been volatile. SEI reached an all-time high of about $1.14 on 2024-03-15. As of 2026-11-05 it traded around $0.048, and it ranked about 128th by market capitalization. Its recorded all-time low of about $0.038 came on 2026-08-18, less than three months earlier. Over the prior year the price had fallen roughly 69%, and it was down about 6.4% over the previous seven days.

These figures describe the past and say nothing about where the price will go next. They do show how far a mid-ranked Layer 1 token can swing within a couple of years.

On the project side, Sei moved from a trading-focused design toward a general-purpose parallelized EVM chain, and it now promotes institutional use cases such as stablecoins, payments and tokenized assets. The Giga upgrade is described as upcoming. The token is also listed in the portfolios of several well-known crypto investment firms according to the data, which indicates early investor interest but does not guarantee future performance or adoption.

SEI carries the usual risks of a smaller Layer 1 token, plus a few specific ones.

Competition. Many chains offer fast, cheap EVM execution, and developers and users can move between them. Sei has to keep attracting apps, liquidity and activity to stay relevant.

Execution risk. Large upgrades such as Giga are complex. Delays, bugs or missed performance targets are possible, and performance claims from the project are targets rather than guarantees.

Supply overhang. With about a third of the total supply not yet circulating, future unlocks could add selling pressure depending on who receives the tokens and when.

Price volatility. A drop of roughly 69% over a year shows how quickly value can fall. Never hold more than you can afford to lose.

Smart contract and bridge risk. Apps on the chain can have bugs, and bridged assets depend on the security of the bridge. Several past crypto losses came from exactly these weak points.

Scams. Fake airdrops, phishing sites and impersonation of support staff are common around any active token. This page is educational and is not financial advice.

How you store SEI depends on how much you hold and how you plan to use it. Tokens left on an exchange are held by the exchange, so you depend on its security and solvency. Moving them to a wallet you control gives you custody, and with it full responsibility.

For larger amounts, a hardware wallet that supports the Sei network keeps your private keys offline. Write the recovery phrase on paper or metal, store it in a secure place, and never type it into a website, share it in a chat or store it as a photo or cloud note. Anyone with the phrase controls the funds, and no legitimate support team will ask for it.

Before sending a large amount, send a small test transaction first. Check that the receiving address uses the format the platform expects and that you have selected the correct network. If you stake, use the validator list in your wallet and read the unbonding period, since staked tokens often cannot be moved immediately.

Be cautious with token approvals on dApps, revoke ones you no longer need, and bookmark official sites instead of following links from social media or direct messages.