A significant decentralized finance trade on the Ethereum platform resulted in a staggering loss of approximately $2 million, caused by a poorly assessed swap through a low-liquidity pool. This unforeseen setback stemmed from a transaction involving 1,126.44 ETH, roughly valued at $2.01 million at that time.
What Caused the Price Anomaly?
The exchange resulted in the trader receiving a mere 5,776 LIT tokens, equating to around $14,200. This unexpected turn wasn’t due to cyber theft or a frontal assault on the trade. Instead, it owed to a backrunning arbitrage approach occurring within the same block, leading to price discrepancies. This insight was provided by GoPlus Security, a notable entity specializing in analyzing blockchain and smart contract vulnerabilities.
GoPlus Security emphasized that this was not a security breach or typical front-running, but rather price manipulation from a backrunning arbitrage opportunity occurring within the same block.
The flawed swap utilized the AVAIL/WETH pool on Uniswap V3, which suffered from exceedingly low liquidity. The sizable ETH order rapidly elevated the AVAIL token‘s price beyond its true market value. Consequently, the trader purchased the tokens at an inflated rate, incurring significant financial damage.
How Did Backrunning Impact This Transaction?
The transaction’s complexities further escalated along additional trades. Following the AVAIL to USDC exchange, the trader proceeded to acquire LIT on Uniswap V4. Unfortunately, unfavorable price reception at each stage meant nearly all the original ETH value was squandered.
Per GoPlus Security’s analysis, after the initial swap distorted prices in the AVAIL/WETH pool, a backrunner purchased AVAIL closer to its intrinsic value from an alternate source, selling it later into the inflated pool for substantial profits.
- Blocks produced by Titan Builder received an on-chain fee of approximately 1,018 ETH.
- MEV participants capitalized on temporal pricing flaws during their transaction sequence.
- The incident highlights the risks linked to large transactions in pools with minimal liquidity.
The case vividly illustrates the dangers of executing substantial trades in markets devoid of liquidity. One large transaction can destabilize prices significantly. While arbitrage mechanisms may restore balance eventually, users are at risk of overpaying substantially during the interim. This scenario emphasizes the importance of sophisticated routing systems that can adeptly navigate away from low-liquidity pools and accurately project the costs across multiple trade routes. Such innovations are crucial to averting similar costly missteps going forward.
