Flashloan Arbitrage Combo: How to Execute Risk-Free Profits with No Coding

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In the fast-evolving world of decentralized finance (DeFi), flash loans have emerged as one of the most powerful and innovative tools. With no collateral required and instant execution, they allow traders to leverage massive liquidity pools—turning small price inefficiencies into real profits. The best part? You don’t need to be a developer to use them.

Thanks to platforms like Furucombo, flashloan arbitrage is now accessible to non-coders. In this guide, we’ll walk you through how to identify arbitrage opportunities and execute a complete flashloan strategy—step by step—using intuitive building blocks instead of code.

What Is a Flash Loan?

A flash loan is an uncollateralized loan that allows users to borrow large amounts of cryptocurrency instantly, provided the full amount (plus a small fee) is repaid within the same blockchain transaction. If repayment fails, the entire transaction is reversed—ensuring no risk to the lending protocol.

Introduced by Aave, flash loans have become a cornerstone of DeFi innovation. They enable advanced strategies such as arbitrage, collateral swaps, self-liquidation, and debt refinancing, all without requiring upfront capital.

Currently, three major protocols support flash loans:

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While dYdX’s implementation isn’t directly user-facing, Aave and Uniswap V2 are widely used for automated trading strategies—especially arbitrage.

Why Flash Loan Arbitrage Is So Popular

Among all flash loan use cases, arbitrage trading dominates. Arbitrage involves exploiting temporary price differences of the same asset across different exchanges. For example, if DAI trades for more sUSD on Uniswap than it does on KyberSwap, you can buy low on one platform and sell high on another.

Traditionally, successful arbitrage requires significant capital to generate meaningful returns. But with flash loans, you can borrow thousands—or even millions—of dollars worth of assets instantly, execute your trade, repay the loan, and pocket the profit—all in one atomic transaction.

This means:
✅ No collateral needed
✅ No long-term exposure
✅ Profit from tiny price gaps

It's like becoming a whale overnight—with zero personal funds at stake.

Key Requirements Before You Begin

Before diving into flashloan arbitrage, keep these prerequisites in mind:

Furucombo simplifies the process by turning complex smart contract interactions into drag-and-drop “cubes.” However, it does not find arbitrage opportunities for you—you must discover them yourself.

Here’s what you need:

Let’s walk through a real-world example.

Real Example: Arbitraging DAI and sUSD

A few months ago, a profitable arbitrage window opened between Uniswap V1 and KyberSwap:

This discrepancy creates a loop where you can:

  1. Borrow 100 DAI via flash loan
  2. Swap DAI → sUSD on Uniswap
  3. Swap sUSD → DAI on KyberSwap
  4. Repay the loan + fee
  5. Keep the surplus

Here’s how the numbers break down:

Borrow 100 DAI from Aave flashloan
Swap 100 DAI → 122.83649 sUSD on Uniswap
Swap 122.83649 sUSD → 122.83429 DAI on KyberSwap
Repay 100.09 DAI (including 0.09% fee)
Profit: ~22.74 DAI

Even though this specific opportunity has likely closed, similar ones appear frequently across DeFi markets—especially during high volatility or low liquidity periods.

Step-by-Step: Building Your Flashloan Arbitrage Combo

Using Furucombo’s visual interface, you can build this entire strategy without writing a single line of code.

Step 1: Add a Uniswap V1 Swap Cube

  1. Click the + cube button
  2. Select "Swap Token" under the Uniswap V1 section
  3. Input: 100 DAI
  4. Output: Automatically calculated as 122.83649 sUSD
  5. Click Set

This sets up the first leg of your arbitrage: buying sUSD cheaply.

Step 2: Add a KyberSwap Cube

  1. Click the + cube again
  2. Choose "Swap Token" under KyberSwap
  3. Input: 122.83649 sUSD
  4. Output: ~122.83429 DAI (based on current rates)
  5. Click Set

💡 Pro Tip: Enter slightly less than the full output from the previous step (e.g., 122.8 sUSD) to account for minor slippage and avoid transaction failure.

Step 3: Add the Flashloan Cube

  1. Click the + cube
  2. Go to the Aave section and select Flashloan
  3. Enter amount: 100 DAI
  4. Click Set

Two new cubes appear:

Step 4: Reorder Execution Sequence

Drag the "Borrow 100 DAI" cube to the top of the sequence. This ensures you start with borrowed capital.

Place the "Repay 100.09 DAI" cube at the bottom—after both swaps are completed.

Your final flow should look like:

1. Borrow 100 DAI (Flashloan)
2. Swap 100 DAI → sUSD (Uniswap)
3. Swap sUSD → DAI (KyberSwap)
4. Repay 100.09 DAI

Any remaining DAI after repayment is your profit.

Final Steps: Deploy and Profit

Step 5: Connect Your Wallet

Link your MetaMask or compatible wallet to Furucombo.

Step 6: Execute the Combo

Review all parameters carefully, then click Send.

If gas prices are stable and the market hasn’t moved, the transaction will go through successfully—and you’ll earn risk-free profit in seconds.

🎉 Congrats! You’ve just executed a flashloan arbitrage with zero coding and zero upfront capital.

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Frequently Asked Questions (FAQ)

Q: Can I lose money using flash loans?

A: Not due to default—the transaction reverts if repayment fails. However, you still pay gas fees even if the combo fails due to slippage or timing issues.

Q: Do I need programming skills to use Furucombo?

A: No! Furucombo uses a visual builder that turns complex DeFi actions into simple drag-and-drop components.

Q: How often do arbitrage opportunities occur?

A: Frequently—especially during volatile markets or when new tokens launch. Tools like DeFi monitoring dashboards can help spot them faster.

Q: Are flash loans safe for beginners?

A: While the mechanism is safe, success depends on precise execution. Start with small tests before scaling up.

Q: Why choose Aave over other flash loan providers?

A: Aave supports more tokens and has a well-documented, user-friendly interface via platforms like Furucombo.

Q: Can I automate my arbitrage combos?

A: Not directly on Furucombo—but advanced users can export logic and deploy bots using Ethereum event listeners.

Core Keywords Summary

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These keywords reflect high-intent search queries from users exploring automated trading, DeFi yield generation, and permissionless financial tools.

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By combining accessibility with powerful financial mechanics, flashloan arbitrage represents the true promise of decentralized finance: open access, transparency, and innovation for everyone—not just institutions. With tools like Furucombo, anyone can participate in sophisticated markets and turn micro-opportunities into real gains.