Ethena entered the final quarter of 2025 under visible strain. What initially appeared as a sharp, but contained, market shock on 10 Oct has instead marked a lasting inflection point for the protocol.
Ethena Under Pressure: Through the Market Noise
Since then, Ethena has failed to regain momentum: total value locked has more than halved from its peak, USDe supply has contracted aggressively, and yield dynamics that once powered growth have structurally weakened.
But Ethena’s contraction is not the consequence of a single depeg or discrete failure, but rather the cumulative effect of several structural frictions, compounded by a deteriorating market backdrop.
Synthetic dollar design
Ethena is a synthetic dollar protocol built on Ethereum designed to issue a yield-generating stable asset without relying on traditional fiat reserves.
Its core product, USDe, maintains a dollar reference by combining spot crypto collateral - primarily assets such as ETH and BTC - with offsetting short exposure in perpetual futures markets. This delta-neutral structure aims to reduce directional price risk while monetizing derivatives market activity.
Yield is distributed through sUSDe, the staked form of USDe, which accrues returns over time. In practice, sUSDe has often been used as collateral across DeFi, enabling leveraged strategies that amplify effective yields.
During periods of favorable market conditions, this dynamic drove rapid capital inflows. By late September, Ethena’s total value locked had climbed to nearly $14.75bn, according to Token Terminal metrics, supported by elevated returns and deep integrations with protocols such as Pendle and Aave.
Economically, Ethena’s model is closely tied to funding dynamics in perpetual futures markets. When speculative demand is skewed toward long positions, funding rates turn positive, allowing short positions - such as those held by the protocol - to collect payments.
These funding flows represent a key source of USDe’s yield, linking its attraction directly to derivative market leverage and risk appetite.
While this structure can be highly effective in expansionary, high-leverage environments, it also introduces sensitivity to regime shifts. When funding rates compress or flip negative, the same mechanics that once reinforced growth can quickly work in reverse, exposing the protocol to changing market conditions.
The turning point
The 10 Oct crash violently disrupted market structure across crypto, abruptly upending the prior regime in which Ethena had thrived.
The crash triggered a rapid unwinding of leverage and exposed fragilities that had been building up beneath the surface.
In less than 24 hours, more than $19bn in positions were liquidated, as a macro-driven sell-off collided with elevated open interest, thin liquidity, and auto-deleveraging (ADL) mechanisms - closing positions when losses exceed available collateral - as risk controls on perpetual futures venues.
For Ethena, attention quickly focused on USDe’s price behavior during the turmoil. While the protocol itself remained fully functional, USDe experienced sharp but venue-specific dislocations on centralized exchanges.
On Bybit, USDe briefly traded near $0.92, while on Binance it fell as low as $0.65. In contrast, onchain liquidity pools on Ethereum remained stable, with major DEX venues holding close to the $1 peg throughout the episode.
The episode was largely Binance-centric. USDe pricing on Binance relied on a thin spot order book for oracle inputs rather than deeper onchain liquidity, while the exchange lacked direct mint-and-redeem dealer integration.
Temporary API, deposit, and withdrawal disruptions further prevented arbitrage from correcting prices in real time while Ethena’s own minting and redemption infrastructure continued to operate normally.
Proof-of-reserves data published around the event confirmed that Ethena remained over-collateralized and delta-neutral, with hedge exposure primarily concentrated in BTC, ETH, and SOL - assets that experienced relatively muted volatility during the crash.
Still, this localized breakdown triggered a sharp capital response. Between 10 and 11 Oct, approximately $1.59bn in USDe was redeemed, representing roughly 11% of the outstanding supply in a single day.
(Source: Dune Analytics)
Binance’s role was further magnified by incentive-driven concentration. In the weeks leading up to the event, a limited-time 12% APR USDe rewards program had attracted significant inflows to the platform.
By 9 Oct, roughly $5.2bn of USDe - nearly one-third of total circulating supply - was held on Binance alone, intensifying the impact when dislocations emerged, and users rushed to de-risk.
Although the immediate shock passed, its effects proved lasting. Ethena failed to mount a meaningful recovery in the aftermath. Total value locked has continued to trend lower, declining by approximately 57% from its peak of $14.98bn in late September to $6.39bn today.
The drawdown unfolded alongside a broader erosion of confidence in interest-bearing stablecoin designs, following the collapses of Stream Finance (xUSD) and Stable Labs (USDX) - both of which claimed to employ delta-neutral strategies similar in spirit to Ethena’s.
Funding rates compress, yields follow
As markets moved past the October shock, a quieter but more persistent force took hold: cooling leverage.
With risk appetite fading, funding rates across perpetual futures markets normalized sharply, removing the primary engine that had sustained Ethena’s yields.
Ethena’s return profile - distributed via sUSDe - is closely tied to funding and basis spreads generated by its delta-hedged positioning, alongside any residual yield from underlying assets.
When the October crash flushed leverage from the system, those spreads compressed materially. Perpetual funding rates fell, DeFi yields followed, and the excess returns that had previously justified leverage began to disappear.
(Source: Token Terminal, DefiLlama)
This yield compression became the central driver behind Ethena’s continued TVL decline. As funding-based returns narrowed, leveraged sUSDe strategies started to unwind, reversing the same looped positions that had powered growth earlier in the year.
Basis trades that depend on consistently high positive funding no longer cleared economically, starving the yield engine even as headline onchain activity remained resilient.
The shift became especially clear when sUSDe yields are benchmarked against dollar funding costs in the ecosystem. With funding rates cooling, the arbitrage spread between futures and spot markets compressed, dragging down the annualized return on sUSDe.
With one-year USDC borrowing rates averaging around 6.3%, the previously popular sUSDe “loop trade” - borrowing cheaper USDC to gain leveraged exposure to sUSDe at a higher yield - lost its edge.
As sUSDe yields fell below funding costs in early October, the trade flipped from positive to negative carry, prompting billions in capital to unwind and rotate toward simpler, more predictable yield strategies.
As a result, the inherent volatility of Ethena’s yield has driven demand for structures that can lock in returns and reduce exposure to funding swings, such as Pendle’s Principal Tokens on USDe.
Leverage feedback loop
Pendle plays a distinct role in DeFi by allowing users to separate principal and yield from yield-bearing assets.
Instead of holding an asset with a floating return profile, users can decompose it into two components: a Principal Token (PT) and a Yield Token (YT).
The PT represents the right to redeem the underlying asset at maturity, while the YT captures all yield generated until that expiry.
Applied to Ethena, PT-USDe allows holders to fix their terminal return rather than remain exposed to floating funding rates. A PT token always redeems for one USDe at maturity but typically trades at a discount beforehand.
That discount, relative to the time remaining until expiry, implies an annualized return, giving PT-USDe the economic profile of a zero-coupon instrument.
In this sense, PT-USDe enables users to lock in a known outcome at maturity by fixing redemption value, while PT-sUSDe - stacked USDe - directly hedges the volatility of Ethena’s funding-driven return by locking in the yield stream produced until maturity.
This structure gained traction as Ethena’s yield volatility became more pronounced. In May 2025, Aave v3 began accepting PT-USDe and PT-sUSDe as supported collateral, underwritten with conservative assumptions tied to USDe’s peg.
This integration materially expanded the strategy’s appeal. Users could lock in fixed yield via Pendle, then deploy a USDe-related principal token as collateral on Aave to borrow more stablecoins and increase their exposure to sUSDe, creating a capital-efficient loop that amplified returns.
(Source: Dune Analytics)
The result was a powerful growth dynamic. Pendle’s TVL became increasingly concentrated in USDe-related markets, with Ethena assets accounting for more than half of Pendle’s total value locked at the peak.
Growth in PT-USDe reinforced demand for USDe itself, while rising USDe supply fed back into Pendle and Aave, creating a mutually reinforcing expansion across all three protocols.
However, this growing interdependence also introduced shared risk across Ethena, Pendle, and Aave. As leverage increased, stress in one layer of the structure could rapidly propagate to the others, tightening the linkage between USDe yields, PT liquidity, and money-market funding conditions.
(Source: Token Terminal)
PT markets introduce an additional constraint: expiry. Principal Tokens must either be held to maturity or actively rolled into new expiries. When yields compressed after September, incentives to roll positions weakened.
PT supply on Aave began to decline as users chose not to extend exposure into later maturities. Ahead of the September PT expiry, Ethena-related exposure on Aave was already highly concentrated.
Ahead of the September 25th expiry, Ethena-linked assets supplied to the protocol peaked near $8.5bn, with roughly half concentrated in PT-USDe and PT-sUSDe maturing at that date.
After that expiry, only a partial rollover took place, as aggregate commitments into the November maturity rose from $1.76bn to $1.99bn, reflecting that a substantial part of positions were not extended into the next cycle as yield compression reduced the incentive to roll exposure forward.
Over subsequent weeks, supply continued to roll off, leaving only a fraction of exposure concentrated in longer-dated PT expiries.
From an all-time high of more than $8bn in Ethena-related assets supplied to Aave, the only material remaining exposure sits in PT-USDe and PT-sUSDe expiring in February 2026 for roughly $440mn.
The unwind hit Pendle TVL first, where exposure was heavily concentrated in USDe, before propagating to Ethena as leveraged positions continued to roll off.
Post-crash adjustments
Despite the sharp unwind, Ethena has continued to iterate on its market structure and risk framework.
The protocol recently launched HyENA, a decentralized perpetual exchange built on Hyperliquid’s HIP-3 standard, using USDe as core collateral.
By allowing USDe to remain yield-bearing while posted as margin, HyENA aims to keep capital productive during trading activity and improve overall capital efficiency, positioning it among the first venues to operationalize this model at scale.
In parallel, Ethena has proposed a secondary-market stabilization mechanism designed to address extreme dislocations.
The framework would allow the protocol to buy back and burn USDe when market prices trade materially below peg, providing a backstop against disorderly sell-offs. The proposal directly responds to the 10 Oct Binance episode.
Together, these initiatives reflect a shift toward reinforcing USDe’s market resilience - both by expanding its productive use as collateral and by introducing tools to mitigate the feedback loops that can emerge during periods of stress.