Arbitrage

Arbitrage plays a key role in financial markets, including crypto and DeFi, by ensuring price efficiency across trading venues. Since digital assets trade on multiple platforms simultaneously, their prices can briefly diverge due to differences in liquidity, trading volume, or transaction speeds. Arbitrage traders profit by buying low on one platform and selling high on another.

🔄 Types of Arbitrage in DeFi

1. DEX-CEX Arbitrage – Exploiting price differences between decentralized and centralized exchanges (e.g., buying ETH cheaper on Uniswap and selling it at a higher price on Binance).
2. DEX-DEX Arbitrage – Trading between two or more AMMs (e.g., buying a token on SushiSwap at $1.00 and selling it on Uniswap at $1.05).
3. Triangular Arbitrage – Profiting from relative price differences between three trading pairs within the same exchange (e.g., ETH → USDT → BTC → ETH).
4. Cross-Chain Arbitrage – Taking advantage of price discrepancies on different blockchain networks (e.g., buying a token on Ethereum and selling it on BNB Chain).
5. Flash Loan Arbitrage – Using flash loans (instant, uncollateralized borrowing) to execute arbitrage trades without upfront capital.

⚙️ Key Considerations for Arbitrageurs

• Gas Fees & Transaction Costs – High network fees can reduce or eliminate arbitrage profits.
• Slippage – Large trades can impact token prices, reducing expected gains.
• Execution Speed – Arbitrage opportunities are short-lived and often exploited by bots and MEV traders.

🏛 Example 1: Uniswap vs. Binance Arbitrage

If ETH is priced at $3,000 on Uniswap but $3,020 on Binance, an arbitrageur can:

1. Buy ETH for $3,000 on Uniswap.

2. Transfer it to Binance and sell for $3,020, making a $20 profit per ETH (minus fees).

🏛 Example 2: Flash Loan Arbitrage on Aave

A trader borrows 100 ETH via a flash loan on Aave, buys a low-priced token on SushiSwap, sells it for a higher price on Uniswap, and repays the loan in the same transaction, keeping the profit.

📚 References

1. Binance Academy – What is Arbitrage Trading?

2. Aave Docs – Flash Loans and Arbitrage

⚠️ Controversies & Misconceptions

• “Arbitrage is always profitable” – Profits depend on low fees, fast execution, and liquidity depth.
• “Anyone can do flash loan arbitrage” – Requires technical knowledge and smart contract execution.

🚀 Conclusion. Arbitrage is a powerful trading strategy in DeFi, helping balance token prices across markets while offering profit opportunities. However, gas fees, competition, and execution risks must be considered before attempting arbitrage trades.