Phantom has confirmed it will end support for the Sui blockchain on its wallet on September 24, 2026. Framed as a mutual agreement, the decision highlights the economic trade-offs facing multi-chain wallets as the SUI token has shed roughly 85% of its value since its all-time high.
🔑 Key takeaways
- End of Sui blockchain support on Phantom scheduled for September 24, 2026.
- Decision driven by maintenance costs not offset by on-chain activity.
- SUI trades around $0.82, down ~85% from its $5.35 ATH.
- Users can migrate to Suiet or the official Sui wallet using the same credentials.
- Phantom leaves the door open to a future return if Sui activity picks up.
A short-lived integration
The Phantom-Sui partnership lasted less than two years. The wallet announced Sui support in December 2024, with the live integration following on January 29, 2025. At the time, Sui became the first Move-based blockchain integrated into Phantom, and the wallet’s third fully supported Layer 1 alongside Solana and Ethereum.
According to the Sui Foundation, Phantom had around 15 million monthly active users when Sui was added — a significant distribution channel for a newer Layer 1. The launch was part of a broader multi-chain expansion by the wallet founded in 2021, which reported processing 850 million transactions in 2024.
An economic viability decision
Beneath the announcement lies a cost calculus. As Cryptoast explains, each supported blockchain generates maintenance overhead — indexers, node updates, customer support, and security audits. When transaction activity no longer offsets these expenses, supporting the chain becomes a loss-making proposition.
« Wallet applications support blockchains that generate maintenance costs; when activity no longer produces enough revenue to cover them, keeping the support in place becomes less attractive. »
Cryptoast editorial team
The SUI token’s trajectory illustrates this dynamic. From an all-time high of $5.35 on January 4, 2025, the price collapsed by roughly 85 to 86% to trade around $0.82 at the time of the announcement. SUI’s market capitalization stood near $3.3 billion in August 2026, with a circulating supply of about 4.05 billion tokens out of a maximum of 10 billion — a large portion still locked under multi-year vesting schedules.
Key figures at a glance
| Metric | Value | Date / Source |
|---|---|---|
| SUI price at announcement | $0.82 | August 2026 |
| All-time high (ATH) | $5.35 | January 4, 2025 |
| Decline from ATH | ~85-86% | — |
| Market capitalization | ~$3.3B | August 2026 |
| Circulating supply | ~4.05B tokens | Out of 10B max |
| Sui peak TVL | >$2B | January 4, 2025 |
Migration options for affected users
SUI holders on Phantom are not losing their funds — the Sui blockchain remains fully operational; only the wallet interface is being retired. Phantom recommends switching to a compatible wallet that uses the same key standard, such as Suiet or the official Sui wallet, both of which accept the same seed phrases.
For users who prefer not to set up a new wallet, Phantom offers an alternative: swap Sui assets into tokens supported by the wallet, with swap fees waived through the deadline. The platform stresses that users retain full custody of their private keys throughout the transition.
- Option 1: migrate to Suiet or the official Sui wallet using your existing seed phrase.
- Option 2: swap SUI tokens into a supported asset via Phantom’s built-in swap (fee-free).
- Option 3: do nothing until September 24, 2026 — custody of keys remains with users.
The broader Sui ecosystem context
Despite Phantom’s exit, the Sui network shows meaningful usage signals. It reported processing more than $1 trillion in stablecoin transfer volume since August 2025, briefly entered the top 10 by total value locked (TVL) in early 2025 with over $2 billion on January 4, 2025, and has been described as the second-largest destination for outbound Ethereum flows via the Wormhole bridge.
These data points nuance the narrative of a fading network. Phantom’s withdrawal reflects a wallet-side rationalization of costs rather than a wholesale rejection of the protocol.
Conclusion: a signal, not a turning point
Phantom’s exit from Sui fits a broader pattern of multi-chain wallets pruning underperforming networks to focus on those generating meaningful volume and fees. For users, migration to Suiet or a fee-free swap into a supported asset remains straightforward.
Phantom has not closed the door: its teams posted on X that future collaborations remain possible if Sui’s economic activity rebounds. The ball is now in Sui’s court — its ability to reignite usage and token value will determine whether the wallet returns. In the meantime, holders have until September 24, 2026 to plan their transition.
Sources
- Cryptoast — Phantom drops Sui blockchain support on its wallet
- Pluang — Phantom ends Sui support, September 24 migration deadline
- The Block — Phantom Wallet adds Sui support
- Sui Foundation — Phantom Wallet is now live on Sui
- TheNewMoney — The Sui blockchain is coming to Phantom wallet
- Phantom — Official Sui token page
This article is for informational and educational purposes only. It does not constitute investment advice. Do your own research (DYOR) before making any decision.
