This Sei price prediction covers a Layer 1 that spent most of 2026 sliding, then rallied hard in late September as US ETF paperwork piled up. SEI went from roughly $0.047 on September 20 to about $0.085 on September 28, a jump of around 80% from the local low according to CaptainAltcoin. CoinMarketCap had it up 39% over seven days by September 24, and Caleb & Brown’s weekly roundup put the gain at 28.2% for the week to September 29. The numbers differ by tracker and by start date, but every source agrees on the direction.
What Is Sei (SEI)?
Sei is a Layer 1 blockchain built for trading and finance. It runs a parallelized EVM with finality of around 400 milliseconds, and since the SIP-3 migration finished in early April 2026 it is EVM only: Cosmos-style sei1 addresses no longer receive deposits, inbound IBC is switched off and CosmWasm has been retired. The team is now working through a roadmap it calls Giga. Version 6.6, released on August 4, 2026, shipped the Ares execution engine and the Eidos storage layer, and a September 1 benchmark showed 205,913 transactions per second. The multi-proposer consensus piece, Autobahn, is still pending and targeted for the fourth quarter of 2026.
Sei was founded by Jeff Feng, a former Goldman Sachs banker, and Jayendra Jog. It raised a $5 million seed round in August 2022 led by Multicoin Capital, with Coinbase Ventures, GSR and Delphi Digital, and then $30 million across two strategic rounds announced in April 2023 with Jump Crypto, Distributed Global and Flow Traders among the backers. Mainnet and the token launched in August 2023. On CoinGecko, SEI traded near $0.073 on October 1, 2026, with a market cap of about $493 million and a rank around #118, so outside the top 100. CoinMarketCap counts a larger circulating supply (7.58 billion against CoinGecko’s 6.73 billion) and ranks it higher. The maximum supply is 10 billion. The all-time high was $1.14 on March 16, 2024, which leaves SEI about 94% below its peak.
The ETF Filings That Sent It Vertical
The main trigger was Canary Capital’s staked SEI ETF. Canary filed a second amendment to its S-1, under which about 90% of the fund’s SEI would be staked, BitGo Trust would act as sole custodian and the shares would list on Cboe BZX. Reports disagree on the exact filing date (September 15, 20 and 21 all appear in coverage), but CoinAlertNews reported SEI up about 33% to 36% in a day to roughly $0.063 on September 21, and CoinGabbar noted that open interest in SEI futures nearly doubled, from about $45 million to $88.8 million, in the same window.
A second filing added fuel. On September 24, REX Shares and Osprey Funds filed a post-effective amendment that sets October 23, 2026 as the effective date for a SEI plus staking ETF, alongside similar funds for SUI, NEAR, AVAX, ATOM, ADA and HYPE, CoinEdition reported. An effective date does not mean trading starts that day, but traders treated it as a deadline. Then the rally cooled: SEI fell 8.5% to about $0.074 on September 29, a classic sell-the-news move. On September 30, KuCoin News, citing BlockCast, reported that more than 11% of Ondo’s USDY supply, about $259 million, now sits on Sei, the largest share on any single chain.
What the Community Actually Liked About It
Holders like that Sei has a clear institutional pipeline. There is the Canary staked ETF, a 21Shares spot SEI filing from August 2025, and now the REX-Osprey date in late October. Add the real-world-asset activity (Ondo’s USDY, a Hamilton Lane tokenized credit fund announced in October 2025) and a joint research report with Mastercard published on Sei’s blog in August 2026, and you get a story that sounds like traditional finance moving on-chain, which is exactly what Sei was built to host.
The speed numbers also help. A 205,913 TPS benchmark is the kind of figure that spreads quickly on X, and the team has kept shipping parts of Giga on schedule. Distribution has widened too, with Robinhood listing SEI in October 2025 and Binance joining as a validator in November 2025, according to crypto.news. For traders who had watched SEI fall about 49% in 2026 up to September 21, the ETF headlines gave them a reason to buy back in.
Sei Price Prediction 2026, 2027, 2030, 2040, 2050 (SEI)
This Sei price prediction table runs a statistical model against SEI’s live market data (current price, volatility, market cap and supply schedule) rather than assuming the current story plays out. It does not assume any ETF is approved or that the Giga upgrade drives new usage, it shows a realistic range if SEI’s current volatility and price pattern continue. The monthly table below rolls forward automatically to always show the next 36 months from today.
Sei SEI
Sei price prediction 2026-2050
| Year | Minimum | Average | Maximum | Potential ROI | Implied market cap |
|---|---|---|---|---|---|
| 2026 Cycle drawdown | $0.0350 | $0.0592 | $0.1000 | -18.9% | $410.28M |
| 2027 Accumulation / recovery | $0.0311 | $0.0877 | $0.2467 | +20.2% | $679.51M |
| 2030 Cycle drawdown | $0.0168 | $0.0950 | $0.5367 | +30.3% | $950.10M |
| 2040 Halving year | $0.0118 | $0.2099 | $3.73 | +187.9% | $2.10B |
| 2050 Cycle drawdown | $0.006057 | $0.1696 | $4.75 | +132.6% | $1.70B |
Sei monthly price forecast
| Month | Minimum | Average | Maximum | Change |
|---|---|---|---|---|
| November 2026 | $0.0511 | $0.0712 | $0.0992 | -2.4% |
| December 2026 | $0.0471 | $0.0735 | $0.1146 | +0.8% |
| January 2027 | $0.0448 | $0.0759 | $0.1285 | +4.0% |
| February 2027 | $0.0427 | $0.0774 | $0.1402 | +6.1% |
| March 2027 | $0.0410 | $0.0788 | $0.1515 | +8.1% |
| April 2027 | $0.0397 | $0.0804 | $0.1626 | +10.2% |
| May 2027 | $0.0386 | $0.0819 | $0.1737 | +12.3% |
| June 2027 | $0.0377 | $0.0835 | $0.1849 | +14.5% |
| July 2027 | $0.0369 | $0.0850 | $0.1961 | +16.6% |
| August 2027 | $0.0362 | $0.0866 | $0.2075 | +18.8% |
| September 2027 | $0.0355 | $0.0882 | $0.2190 | +21.0% |
| October 2027 | $0.0350 | $0.0898 | $0.2306 | +23.2% |
| November 2027 | $0.0345 | $0.0914 | $0.2425 | +25.4% |
| December 2027 | $0.0340 | $0.0930 | $0.2545 | +27.6% |
| January 2028 | $0.0336 | $0.0947 | $0.2668 | +29.9% |
| February 2028 | $0.0336 | $0.0974 | $0.2824 | +33.6% |
| March 2028 | $0.0336 | $0.1001 | $0.2981 | +37.2% |
| April 2028 | $0.0336 | $0.1029 | $0.3147 | +41.1% |
| May 2028 | $0.0337 | $0.1056 | $0.3316 | +44.9% |
| June 2028 | $0.0337 | $0.1085 | $0.3492 | +48.8% |
| July 2028 | $0.0338 | $0.1113 | $0.3671 | +52.7% |
| August 2028 | $0.0338 | $0.1143 | $0.3857 | +56.7% |
| September 2028 | $0.0339 | $0.1172 | $0.4049 | +60.8% |
| October 2028 | $0.0340 | $0.1202 | $0.4244 | +64.8% |
| November 2028 | $0.0341 | $0.1232 | $0.4447 | +69.0% |
| December 2028 | $0.0342 | $0.1262 | $0.4654 | +73.1% |
| January 2029 | $0.0343 | $0.1292 | $0.4867 | +77.3% |
| February 2029 | $0.0328 | $0.1261 | $0.4845 | +72.9% |
| March 2029 | $0.0314 | $0.1232 | $0.4832 | +69.0% |
| April 2029 | $0.0300 | $0.1199 | $0.4793 | +64.4% |
| May 2029 | $0.0286 | $0.1166 | $0.4752 | +59.9% |
| June 2029 | $0.0272 | $0.1131 | $0.4697 | +55.1% |
| July 2029 | $0.0259 | $0.1096 | $0.4638 | +50.3% |
| August 2029 | $0.0246 | $0.1059 | $0.4564 | +45.3% |
| September 2029 | $0.0233 | $0.1021 | $0.4480 | +40.1% |
| October 2029 | $0.0220 | $0.0984 | $0.4394 | +35.0% |
How this Sei forecast was calculated
Every input below comes from live market data and is re-checked daily. Nothing here is a guess dressed up as a number, and you can check the working yourself.
- Tier: Sei is classified as a small cap asset (market cap $490.98M). Larger assets are given lower growth rates, because a coin already worth billions cannot repeat the returns of one worth millions.
- Volatility: 74% annualised, measured from 2160 real price observations over the last 90 days. This sets how wide the minimum-to-maximum range is.
- Growth rate: a base of +29.7% per year for this tier, adjusted for category and liquidity (normal), giving +17.5% per year.
- Supply dilution: total supply is 1.49x the circulating supply. Those tokens unlocking over time reduce the expected price by about 9.9% per year, and that drag is subtracted.
- Market cycle: the four-year Bitcoin halving rhythm is applied on top, so a drawdown year and a post-halving expansion year are not treated the same. The next halving is expected in 2028.
- Reality check: every maximum is clamped so the implied market capitalisation cannot exceed $80.00B for an asset of this type. Any figure marked capped hit that limit.
Minimum and maximum are the 10th and 90th percentile of a log-normal distribution. That means roughly an 80% chance the real price lands inside the range, if the model's assumptions hold. They frequently will not. Ranges are scaled by time0.42 rather than the square root of time, because crypto volatility mean-reverts over multi-year horizons.
Not financial advice. This is a statistical model applied to public market data. Crypto assets are highly volatile and you can lose everything you put in. No model predicts prices, including this one. Do your own research and never invest money you cannot afford to lose.
How To Buy Sei (SEI)
- Buy SEI on a major exchange such as Binance, Coinbase, Robinhood, Upbit, Bybit, OKX or KuCoin.
- Sei is now EVM only. If you withdraw to a wallet, use an EVM (0x) address on the Sei network, not an old sei1 address, which no longer receives deposits.
- Watch the calendar: the REX-Osprey ETF effective date is October 23, 2026 and Tokenomist lists an ecosystem reserve unlock on October 15, 2026.
- Position-size like it can go to zero. SEI is still about 94% below its 2024 high, it has already shown sell-the-news drops, and ETF approval is not guaranteed. Nothing here is an entry signal.
Is SEI a Good Investment? The Honest Risk Warning
The fundamentals have not kept pace with the headlines. CoinMarketCap reported in March 2026 that Sei’s TVL had fallen from about $1.37 billion to under $80 million, and CoinGabbar noted on September 8 that chain-level fees were only around $39 a day against about $41,500 in app fees. An ETF can bring new buyers, but it does not create activity on the chain by itself, and if usage stays low the rally may not hold once the filings are priced in.
Leverage is the other concern. CoinGabbar put futures volume at around six times spot during the run, and the RSI went above 80, both signs of a crowded trade. The SIP-3 migration also left some users needing to convert old assets, including about $1.4 million of bridged USDC. If you want to compare it with another chain that rallied on institutional news this month, our LayerZero price prediction covers the Anchorage stablecoin deal.
Sei (SEI) FAQ
Why did SEI go up in late September 2026?
SEI rallied on ETF news: an amended S-1 for Canary Capital’s staked SEI ETF around September 21 and a REX-Osprey filing that set an October 23 effective date for a SEI staking ETF. Futures open interest roughly doubled during the move.
When will a SEI ETF launch?
No SEI ETF was trading as of October 1, 2026. REX-Osprey set October 23, 2026 as an effective date and Canary’s staked ETF is still in the filing process, but neither guarantees a launch date.
What is the Sei Giga upgrade?
Giga is Sei’s performance roadmap. The Ares execution engine and Eidos storage layer shipped in August 2026 and a benchmark hit 205,913 TPS. The Autobahn consensus upgrade is targeted for the fourth quarter of 2026.
Can SEI get back to $1?
SEI would need to rise more than tenfold from about $0.073 to reach $1, and its all-time high is $1.14. That would require far more on-chain activity than Sei has today, so treat it as a long shot rather than a forecast.
