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How a 2.85% Price Error Triggered $27M in Liquidations on Aave

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How a 2.85% Price Error Triggered $27M in Liquidations on Aave

Key takeaways

  • A temporary 2.85% pricing discrepancy in wstETH collateral triggered about $27 million in liquidations on Aave, showing how even small technical issues can have major financial consequences in automated DeFi lending systems.

  • The liquidation wave occurred because Aave’s system briefly valued wstETH at about 1.19 ETH instead of its market value near 1.23 ETH, making some borrowing positions appear undercollateralized.

  • Price oracles are critical infrastructure in DeFi because they feed external market data to smart contracts, determining collateral values, loan health and when automated liquidations should occur.

  • The root cause was not a faulty price feed but a misconfiguration in Aave’s CAPO risk oracle system, where outdated smart contract parameters created a temporary cap on the token’s exchange rate.

Decentralized finance (DeFi) protocols use automated logic to handle everything from collateral management to risk assessment. While this setup enables a truly open and permissionless financial system, it also means that minor technical issues can snowball into significant financial disruptions.

According to risk monitoring firm Chaos Labs, a market downturn on March 10, 2026, triggered approximately $27 million in liquidations for Aave borrowers, clearly illustrating this vulnerability. In a single 24-hour window, approximately $27 million in user positions were liquidated. Surprisingly, this was not caused by a massive market sell-off but by a brief 2.85% price discrepancy affecting wrapped staked ETH (wstETH) collateral.

This event serves as a stark reminder of how critical price oracles and robust risk management frameworks are to the stability of the DeFi ecosystem.

The article explains how a 2.85% pricing discrepancy in wstETH collateral triggered about $27 million in liquidations on the Aave lending protocol. It highlights how oracle configurations, smart contract parameters and automated liquidation mechanisms can amplify small pricing errors in DeFi markets.

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A sudden surge in liquidations

When a wave of liquidations occurred across Aave markets, Chaos Labs, which tracks lending protocols for unusual activity, quickly identified and flagged the surge. Early speculation among observers pointed to a possible malfunction in the price oracles, which may have mispriced collateral assets on the platform.

Price oracles serve as critical bridges, supplying external market prices to onchain applications. In lending protocols like Aave, these feeds determine whether a borrower’s collateral still sufficiently covers their loan. When the collateral value falls below the required threshold, the system triggers the automatic liquidation of the position.

The asset at the center of this event was wstETH, a token commonly used as collateral across DeFi lending ecosystems.

Did you know? Liquidations on lending protocols like Aave often happen faster than traditional margin calls. Because DeFi markets operate 24/7 through automated smart contracts, positions can be liquidated within seconds once collateral ratios fall below the required thresholds.

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What is wstETH?

wstETH, or wrapped staked Ether (ETH), is a token issued through the Lido protocol, a leading liquid staking protocol.

When users stake Ether via Lido, they initially receive stETH, which represents their staked ETH plus accrued staking rewards. To improve compatibility with various DeFi applications, stETH can be wrapped into wstETH.

Due to the ongoing accumulation of staking rewards, one wstETH generally holds a value slightly above one ETH. This makes it a particularly attractive and widely adopted form of collateral in DeFi lending markets.

The pricing discrepancy

During the liquidation wave, a mismatch appeared between wstETH’s actual market value and the valuation applied by Aave’s risk system. Aave’s algorithm priced wstETH at approximately 1.19 ETH, whereas the broader market valued it closer to 1.23 ETH.

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This roughly 2.85% difference caused positions collateralized by wstETH to appear more undercollateralized than they actually were.

As a result, certain borrowing positions fell below their required safety thresholds, triggering Aave’s automated liquidation process.

Why price oracles are critical in DeFi

Price oracles are essential infrastructure in DeFi. Blockchains cannot natively fetch real-world market data, so oracle services supply external price feeds for assets. These feeds directly influence:

A reported drop in collateral price can lead the protocol to deem a loan insufficiently backed, prompting the automatic liquidation of the position.

Because this mechanism operates algorithmically, even minor pricing deviations can cascade into substantial consequences.

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Did you know? A small price discrepancy can have outsized effects in DeFi. Even a brief deviation in an oracle or market price of just a few percent can trigger cascading liquidations. This is especially true when many borrowers use highly leveraged positions backed by volatile crypto collateral.

The real cause: CAPO risk-oracle misconfiguration

Deeper analysis confirmed that Aave’s primary price oracle was operating normally.

The root issue instead lay in the correlated assets price oracle (CAPO) risk oracle module, an additional protective layer applied to select assets.

CAPO is specifically designed to cap the rate at which the value of yield-bearing tokens like wstETH can rise. This safeguard helps protect the protocol against abrupt price surges or potential oracle exploits.

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In this case, however, a configuration inconsistency within CAPO triggered the problem.

Technical breakdown of the error

Chaos Labs disclosed that the fault originated from outdated parameters stored in a smart contract.

Two key values had fallen out of alignment:

Because these were not refreshed in tandem, CAPO computed a temporary ceiling on the allowable exchange rate that sat below the prevailing market value.

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This caused the protocol to undervalue wstETH by approximately 2.85% relative to its prevailing market price.

Did you know? Aave relies on price oracles, which are data feeds that supply real time asset prices to smart contracts. If these feeds briefly reflect unusual market prices from exchanges, the protocol automatically recalculates collateral values and may trigger liquidations.

The liquidation cascade

As soon as collateral ratios fell below the required thresholds, Aave’s automated liquidation engine activated.

Liquidators, typically high-speed trading bots, stepped in by repaying a portion of the borrower’s debt and, in return, acquiring the underlying collateral at a built-in discount.

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Across the event, roughly $27 million in borrowing positions were liquidated.

Liquidators ultimately extracted around 499 ETH in combined profits and liquidation bonuses, capitalizing on the short-lived pricing misalignment.

No bad debt incurred by the protocol

Even with the volume of liquidations, Aave remained at zero bad debt. Aave founder Stani Kulechov stated that there “was no impact to the Aave Protocol.”

Chaos Labs said the platform’s core risk and liquidation mechanisms functioned as designed once positions breached their thresholds. Once positions breached their safety thresholds, liquidations proceeded according to design.

The disruption therefore remained confined to affected individual borrowers and did not threaten the protocol’s overall solvency or stability. The resulting artificial depression in collateral value pushed several borrowing positions below their liquidation thresholds.

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Aave governance proposed compensating affected users through refunds funded by recoveries and decentralized autonomous organization (DAO) treasury support. This approach aligns with a shifting pattern in DeFi governance, where protocols increasingly view technical incidents as systemic infrastructure risks. They may move to compensate impacted users rather than leave them to bear permanent losses.

A reminder of oracle risk in DeFi

The event underscores that oracle design remains one of the most vital and vulnerable elements of DeFi infrastructure.

Even minor configuration mistakes can trigger outsized consequences when automated mechanisms oversee billions of dollars in collateral value.

Comparable episodes have occurred on other DeFi platforms. For example, a misconfigured oracle once temporarily valued Coinbase’s wrapped staked ETH (cbETH) at around $1 instead of approximately $2,200, sparking widespread disruption.

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Such cases highlight the ongoing challenges of maintaining reliable, accurate price feeds in decentralized financial systems.

wstETH and Lido were not responsible

Contributors from the Lido ecosystem made it clear that the liquidations did not stem from any malfunction or flaw in wstETH itself.

The token operated normally throughout the event, and the underlying Lido staking protocol remained fully functional and unaffected.

The primary issue appears to have stemmed from how the Aave lending protocol processed and interpreted price data through its own risk management configuration.

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Lessons for the future of DeFi

As decentralized finance continues to scale, protocols are incorporating increasingly sophisticated risk management systems to accommodate yield-bearing assets such as wstETH.

These assets present unique pricing challenges because their value increases steadily over time through accumulating staking rewards.

Effective risk models must therefore properly handle:

Even minor misalignments in these elements can escalate into widespread liquidation events.

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SEC proposal could remove crypto from OTC reporting requirements

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SEC proposal could remove crypto from OTC reporting requirements

The U.S. Securities and Exchange Commission has put forward a proposal which, according to SEC commissioner Hester Peirce, could help clear up years of confusion around how a key broker-dealer rule applies across markets.

Summary

  • SEC has proposed limiting Rule 15c2-11 to equity securities, reversing its broader 2021 interpretation that raised questions for crypto assets.
  • A 60-day public comment period has been opened as regulators seek feedback on how the rule should apply and whether crypto falls outside its scope

On Monday, the SEC proposed an amendment to Rule 15c2-11 that would limit reporting requirements for broker-dealers in the over-the-counter market to equity securities only, effectively reversing the broader interpretation introduced in 2021.

The SEC Rule 15c2-11 was first introduced in 1971 to ensure broker-dealers maintain up-to-date issuer information before they can publish over-the-counter quotes.

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By placing obligations for firms to review and maintain current information about an issuer, the rule was designed to reduce risks in thinly traded markets, particularly in penny stocks.

Without this information, a broker-dealer is not allowed to initiate or resume quotations for a security in OTC markets.

However, the rule was reinterpreted in 2021 to extend beyond equities into other asset classes, and as a result, there have been questions around whether it can apply to crypto assets if they are classified as securities.

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The SEC’s proposal would limit the rule’s scope to equity securities.

As such, broker-dealers won’t be required to apply these reporting requirements to crypto assets, even in cases where questions around their classification as securities remain unresolved.

This could make it easier for broker-dealers to support crypto trading and quote digital assets without having to rely on disclosure standards that do not align with how these assets function.

A public comment period has been opened where the commission is seeking feedback on whether the definition of equity securities should extend to crypto assets and how the rule should apply going forward.

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According to Commissioner Peirce, who also leads the agency’s crypto task force, the proposal could help address confusion created by the earlier interpretation.

“By its terms, the text of Rule 15c2-11 always has applied to quotations of a ‘security.’ Market participants and other observers including me, however, understood the rule to apply only to quotations of over-the-counter (‘OTC’) equity securities,”

However, it must be noted that there is still no final decision on whether “equity securities” could include crypto assets.

Peirce said she would closely watch “questions about the definition of ‘equity security,’ the rule’s application to crypto assets, and the appropriate next steps with respect to the formation of an ‘expert market.’”

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Polymarket banned in Argentina after regulatory probe

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Polymarket banned in Argentina after regulatory probe

Argentina has ordered a nationwide block of prediction market platform Polymarket, tightening its stance on what authorities describe as unlicensed online betting activity.

Summary

  • Argentina has ordered a nationwide block of Polymarket, citing illegal gambling concerns and risks tied to crypto payments and lack of identity checks.
  • Regulators have directed ENACOM to enforce the ban and asked Google and Apple to remove the app following complaints from local gaming bodies.

According to local media, a Buenos Aires court has directed regulators to move forward with enforcement after concluding that the platform operated outside the country’s legal gambling framework.

Authorities highlighted consumer protection risks among others, including the use of crypto payments, credit card deposits, and the absence of robust age or identity verification checks that could allow minors to participate.

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There are also broader regulatory concerns behind this decision, tied to how prediction markets blur the line between financial speculation and gambling.

Authorities raised concerns about Polymarket’s handling of Argentina’s February inflation rate of 2.9% before the official release. Reports say the platform reportedly reversed its prediction just 15 minutes before the data was published, which authorities found suspicious.

The authorities concluded that the platform functioned as an online betting system rather than a neutral prediction market.

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Subsequently, authorities asked the telecom regulator ENACOM to coordinate with internet service providers to enforce the block. Meanwhile, Google and Apple have been ordered to remove the platform’s apps, limiting access for local users.

The latest order also follows multiple complaints from entities such as the Buenos Aires City Lottery and the Argentine Chamber of Casinos and Bingos, which pushed for action against the platform.

Argentina now joins a long list of countries, notably across Europe and Latin America, that have taken action against the platform.

Last year, Colombia and Romania banned the platform, classifying it as unauthorized gambling activity within their jurisdictions.

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Similar concerns have been raised across several states in the U.S., where regulators are examining whether event-based contracts offered by platforms like Polymarket fall under existing gambling or derivatives laws.

Separately, Polymarket is also facing scrutiny over its handling of markets tied to sensitive events, including contracts linked to death and violent outcomes, which have drawn criticism from lawmakers and prompted fresh legislative efforts.

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Ripple-linked token flips BNB as open interest toward pre-crash level

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(CoinDesk)

XRP just reclaimed a ranking it hasn’t held in weeks, and the derivatives market suggests traders are positioning for more.

The token surged to $1.53 on Tuesday, up 11% on the week, overtaking BNB to become the fourth-largest cryptocurrency by market cap at $93.4 billion. The move broke through $1.40 resistance, per CoinDesk analytics, with trading volume exploding 125% to $3.22 billion.

Coinglass data shows XRP open interest on Binance has climbed to 353.49 million XRP as of March 17, up from 222.79 million on Oct. 24, 2025, when XRP was trading at $2.39. That’s a 59% increase in open interest while the price is 37% lower. New leveraged positions are building into the recovery rather than unwinding, which is a fundamentally different setup from the deleveraging that dominated January and February.

The Binance OI chart shows the full arc. Open interest peaked above 400 million XRP in September 2025, collapsed during the October crash that took the price from $3.65 to below $2, and spent the next four months slowly rebuilding.

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(CoinDesk)

The current 353 million is approaching but hasn’t yet matched those pre-crash levels, which means the market has room to add leverage before hitting the concentration that preceded the last wipeout.

Traders will likely now monitor whether the $1.50-$1.60 zone holds or becomes another failed breakout in a token that has been full of them since October. Open interest building into the move gives it more structural support than previous attempts, but XRP approaching pre-crash leverage levels at 58% below the pre-crash price is a setup that works until it doesn’t.

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Bitcoin ETF Inflows See 6-Day Streak

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Bitcoin ETF Inflows See 6-Day Streak

US-based spot Bitcoin exchange-traded funds recorded their sixth day of inflows on Monday as Bitcoin rose over 12% over the period, marking the longest streak of fresh capital into the ETFs since October last year. 

Data from Farside Investors shows Bitcoin ETFs raked in $199.4 million of net inflows on Monday. BlackRock’s iShares Bitcoin Trust (IBIT) and the Fidelity Wise Origin Bitcoin Fund led with $139.4 million and $64.5 million in inflows, respectively.

The Bitwise Bitcoin ETF and Franklin Bitcoin ETF tallied inflows of $2.8 million and $2.1 million, while the VanEck Bitcoin ETF and ARK 21Shares Bitcoin ETF saw outflows of $6.3 million and $3.1 million, respectively.

This brings the total net inflows since March 9 to $962.8 million, coinciding with Bitcoin (BTC) rising 12.5% from $65,960 to $74,250 over the period. 

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The inflow streak follows a much larger nine-day run between September and October 2025, which saw Bitcoin products tally nearly $6 billion worth of inflows.

Bitcoin was significantly higher at the time, hitting an all-time high of $126,080 during that stretch. 

Flow data for the US spot Bitcoin ETFs in March. Source: Farside Investors

The recent rise in Bitcoin ETF inflows and the cryptocurrency’s spot price comes amid ongoing uncertainty between the US and Iran and volatility in the oil markets.

Rumors of progress have helped Bitcoin

However, blockchain analytics platform Santiment said rumors swirling about progress being made by the US, Iran and Israel have been a contributing factor to Bitcoin soaring above the $74,400 mark for the first time in six weeks.

“This bullish momentum has been enough to push FOMO to its highest level since January 2nd,” Santiment noted.

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Related: Crypto Biz: Circle stock defies Wall Street and digital asset selloff 

“In spite of global uncertainty at the moment, traders are once again seeing crypto as a sector with rise potential in the coming weeks and months.”

Santiment data shows Bitcoin FOMO (fear of missing out) is at its highest point since Jan. 2. Source: Santiment

The Crypto Fear & Greed Index score, a measure of Bitcoin and crypto market sentiment, also increased five points to 28 on Tuesday — escaping the “Extreme Fear” zone for the first time since late January.

Magazine: Bitcoin’s ‘narrative vacuum,’ Ethereum now inevitable: Trade Secrets