SparkDEX launches the EarnFLR Vault on Flare with Upshift

The EarnFLR Vault takes WFLR deposits and spreads them across FTSO delegation, liquid staking, lending markets and SparkDEX liquidity pools. SparkDEX curates the strategies on Upshift's vault contract, and depositors hold the vault share token in their own wallets.

SparkDEX opened the EarnFLR Vault on Flare on 10 November 2026, giving FLR holders one deposit that earns from several FLR-native sources at once. A holder deposits WFLR and receives vault shares, and SparkDEX allocates the pooled WFLR across FTSO delegation, DEX liquidity, liquid staking, looping and lending markets.

Upshift built the vault infrastructure underneath, and the vault is live in both the SparkDEX app and the Upshift app. Flare seeded the vault with FLR at launch.

How the EarnFLR Vault works

The EarnFLR Vault runs on an Upshift vault contract on Flare (chain ID 14). A depositor sends WFLR, the wrapped ERC-20 version of FLR, and the contract mints vault shares in return. Those shares track each depositor's portion of the pool. Their value in WFLR moves with what the strategies earn or lose.

SparkDEX moves the pooled WFLR into its strategies through a strategy account connected to the vault and sets how much each strategy gets. Upshift's contract records deposits, issues and burns the share token, queues withdrawals and reports the vault's balance to both apps. A withdrawal request joins a queue and pays out in WFLR once the vault's withdrawal lag has passed (3 days as of November 2026). The same contract design sits behind every vault Upshift deploys for a partner, whatever the asset or chain.

Where does the EarnFLR Vault's yield come from?

The EarnFLR Vault earns from five FLR-native sources, and SparkDEX shifts the mix between them as rates on Flare change. Each source pays in FLR terms.

• FTSO delegation. WFLR holders can delegate their vote power to FTSO data providers, the services that feed prices into Flare's onchain oracle, and share in the rewards those providers earn. SparkDEX runs its own FTSO on Flare.
• DEX liquidity. Part of the pool sits in SparkDEX liquidity pools, where it earns a share of trading fees.
• Liquid staking. WFLR can be staked through stFLR, SparkDEX's liquid staking token, which rises in value against FLR as staking rewards come in.
• Looping. The vault posts staked FLR as collateral on a lending market, borrows WFLR against it and stakes that too.
• Lending markets. WFLR supplied to onchain lending markets earns interest from borrowers.

Flare's developer docs say wrapped tokens are required to delegate vote power to FTSO data providers and to vote on network decisions. A WFLR holder who delegates alone earns those rewards and keeps full use of the tokens. Delegation on Flare doesn't lock them. The vault stacks the other four sources on top. SparkDEX handles the rebalancing, the reward claims and the sizing of the looped position, work that would otherwise take several apps and regular attention.

What does the EarnFLR Vault charge?

The EarnFLR Vault charges a 0% management fee at launch and a 15% performance fee on the yield it generates. The contract caps the performance fee at 20%. Fees come out of earnings inside the vault, and depositors see them reflected in the share value.

The EarnFLR Vault page in the Upshift app shows the same contract address, along with the vault's live balance and fee settings.

What are the risks of the EarnFLR Vault?

Smart contract risk applies to the Upshift vault and to every protocol the strategies touch, including SparkDEX's pools, stFLR and the lending markets. Upshift's contracts have been through 11 smart contract audits by 6 independent firms, which lowers that risk without removing it.

Strategy risk sits mostly in two places. If WFLR borrow rates climb above the staking rate, the looped position earns less or loses money until SparkDEX resizes it. Liquidity pools can also hand back a different mix of tokens than went in when prices move.

FLR price risk applies to the whole position: returns accrue in FLR, and a fall in the FLR price lowers the dollar value of a deposit even while its WFLR balance grows (for an FLR holder measuring in FLR, that matters less). Yields are variable and aren't guaranteed.

Always make sure to do your own research and be aware of the above and any other risks before depositing.

About SparkDEX and Upshift

SparkDEX describes itself as "building the first AI-powered Super dApp on Flare Network". Its DeFi hub includes V3 and V4 DEXs for spot swaps and liquidity provision, a perpetuals exchange, SPRK staking and stFLR liquid staking. SparkDEX is also an infrastructure provider on Flare, running its own FTSO data provider.

Upshift is onchain yield infrastructure that lets fintechs and asset managers offer yield inside their own products. It has held more than $550 million in deposits at peak across 50+ vaults on more than 30 chains. A curator like SparkDEX runs each vault's strategy. Readers new to the model can start with how an onchain vault works.

Frequently asked questions

Does the EarnFLR Vault accept native FLR?

The vault accepts WFLR. Native FLR converts to WFLR through Flare's WNat contract, and the same contract unwraps it back to FLR.

What does a depositor receive for WFLR?

A depositor receives the vault's share token, issued by the Upshift contract. Its WFLR value rises or falls with the strategies, and the token is burned when the depositor withdraws.

How does the EarnFLR Vault relate to stFLR?

stFLR is one building block inside the vault. The vault can hold stFLR, post it as collateral and provide liquidity with it, while an stFLR holder on their own earns the staking rewards alone, minus SparkDEX's 10% performance fee on those rewards.

Can the performance fee go above 15%?

It can be raised, though the vault contract won't accept a performance fee above 20%. The management fee is 0% at launch.

Keep reading

• How earnXRP earns yield on XRP through Flare
• Can you stake XRP?
• How yield vaults work, their strategies and their risks
• Upshift Vault-as-a-Service docs