Phantom Sui support will end on September 24, allowing users several weeks to convert SUI or access holdings elsewhere.
The decision removes a major gateway to Sui, which Phantom added on January 29, 2025. The Sui Foundation said Phantom then served 15 million monthly active users.
Sui activity has weakened since that launch. DefiLlama data places total value locked at $470.38 million, down from more than $2 billion.
SUI trades near $0.83, giving the token a market capitalization of about $3.4 billion. That price remains well below its January 2025 record of $5.36.
Users Can Convert SUI or Change Wallets
Phantom outlined two migration routes on its help page. Users can convert SUI into wrapped SUI on Solana before support ends.
Phantom will waive its fee for that cross-chain conversion until September 24. Network and exchange charges still apply during transactions.
The wallet will also add no fees for swaps into SOL, ETH, or USDC. Users wanting to retain SUI can instead import their recovery phrase into a compatible wallet.
Phantom recommends Slush, the Sui Foundation’s preferred wallet. The same address and balances should appear automatically after users enter their phrase.
Assets remain recorded on the Sui blockchain rather than inside Phantom. Consequently, holders can recover them later using the same “login,” without a deadline.
Phantom warned that it never initiates contact or requests seed phrases. Any unsolicited migration assistance should therefore be treated as fraudulent.
Sui Partnership Ends During Wider Chain Reductions
The 2025 integration made Sui Phantom’s fourth supported Layer 1, alongside Solana, Bitcoin, and Ethereum. Phantom also supported Coinbase’s Layer 2 network Base.
The Sui Foundation called Sui “the only Move-based chain and the third Layer 1 fully supported on the platform.”
Phantom chief executive Brandon Millman said Sui’s “focus on scalability and its superior user experience aligns perfectly with Phantom’s goal of making crypto accessible for everyone.”
However, SUI dropped more than 4% when integration launched. Cryptopolitan reported that the token had already fallen over 20% during the preceding ten sessions.
Both organizations now describe the separation as mutual. Phantom’s X post said they may “explore other collaborations in the future.”
The wallet is also ending Monad support on August 26. Its help page provides identical migration instructions for users.
That parallel withdrawal indicates a wider reduction in Phantom’s multichain lineup rather than a decision affecting Sui alone.
A March 2026 Bank for International Settlements working paper said permissionless blockchains continue fragmenting markets. New low-fee networks can draw users from established chains and weaken network effects.
Losing Phantom reduces Sui’s retail access while on-chain activity remains lower. Circle still lists Sui among networks supported through its stablecoin infrastructure.
Sui’s DeFi TVL has fallen from roughly $2 billion earlier in 2026 to below $1 billion by July, according to DeFiLlama data cited in market reports. Phantom said it will end Sui network support on September 24.
| Metric | Peak / earlier 2026 | Latest reported |
| Sui DeFi TVL | ~$2B | <$1B |
| Change | — | At least ~50% below $2B |
| Phantom support | Active | Ends Sept. 24, 2026 |
| SUI ETF | — | U.S. spot SUI products already trading |
The current evidence establishes the two developments, but doesn’t establish causation.
