A comprehensive analysis of decentralized finance (DeFi) yield sources for 2025 reveals that the sector generated approximately $8 billion in onchain returns, primarily driven by borrowing demand, trading fees, and perpetuals funding rates. This detailed breakdown, published by researcher Vadym, offers critical insights into the origins and distribution of these yields, highlighting a complex landscape where abundance coexists with significant challenges in accessibility and sustainability. Crucially, the report underscores a notable trend: more than half of stablecoin deposits within the Ethereum ecosystem are currently yielding less than benchmark U.S. Treasury rates, signaling a maturation and potential convergence with traditional finance benchmarks.

The findings emerge amidst a broader compression of yields across the DeFi space. Over the past year, borrowing rates on major lending platforms have largely aligned with the Federal Reserve’s policy rate, a stark contrast to the often exorbitant, double-digit annual percentage yields (APYs) that characterized earlier periods of DeFi’s growth. Currently, "safe" stablecoin supply rates average around 3%, falling below both U.S. Treasuries and the Secured Overnight Financing Rate (SOFR). For instance, Aave, a prominent lending protocol, recorded a 30-day average yield on its USDC and USDT pools at approximately 2%. This yield compression is widespread, with the analysis indicating that out of over $20 billion in stablecoin total value locked (TVL) across Ethereum and its Layer 2 networks, a substantial 58% is earning below 3% APY. This shift marks a significant evolution from the "DeFi Summer" era of 2020-2021, where high single-digit and even triple-digit yields were not uncommon, fueled by nascent liquidity and speculative demand. The current environment reflects a market adjusting to increased competition, institutional participation, and a more sober assessment of risk.

Deconstructing the $8 Billion: Primary Yield Sources

Vadym’s analysis meticulously identifies five core categories contributing to the $8 billion in onchain yield, each characterized by distinct risk profiles and inherent scalability constraints. Understanding these sources is crucial for both retail and institutional participants navigating the evolving DeFi ecosystem.

1. AMM Trading Fees ($4.2 Billion): The Engine of Decentralized Exchange
Automated Market Maker (AMM) trading fees emerged as the single largest yield category, contributing approximately $4.2 billion. This substantial figure underscores the enduring importance of decentralized exchanges (DEXs) in facilitating token swaps and providing liquidity. Uniswap, the undisputed market leader, alongside emerging platforms like Meteora and Raydium, collectively accounted for 62% of this total. These protocols generate revenue from transaction fees charged to users for swapping tokens, which are then distributed to liquidity providers (LPs) who supply the underlying assets.

However, the report offers a crucial caveat: these fees, despite their volume, are notoriously challenging for individual LPs to capture effectively, particularly in structured products. LPs, especially those utilizing concentrated liquidity mechanisms (pioneered by Uniswap v3), frequently incur losses due to "toxic order flow" – a phenomenon where sophisticated traders or bots exploit price discrepancies, leaving LPs with a less favorable asset composition. This issue, often referred to as "impermanent loss," remains a significant hurdle. Efforts to mitigate this through LP-manager vaults, which aim to optimize liquidity positions and minimize impermanent loss, have yet to gain substantial traction, suggesting a continued struggle in creating truly efficient and profitable passive LP strategies for the average user. Industry experts suggest that advanced quantitative strategies and active management are often required to consistently profit from AMM fees, making it less accessible for passive investors.

2. Borrow Interest ($1.76 Billion): The Backbone of DeFi Lending
Borrow interest generated approximately $1.76 billion across leading money markets such as Aave, Morpho, Spark, Maple, and Fluid. These lending protocols represent the economic backbone of DeFi, accounting for over 60% of the total DeFi TVL. They allow users to deposit crypto assets as collateral and borrow other assets, with interest paid by borrowers to depositors. The core utility of these platforms – enabling capital efficiency and leverage – remains central to the DeFi ethos.

However, a deeper dive into borrowing demand reveals a significant structural element: roughly half of all borrowing is recursive. This means users borrow assets not for external consumption or real-world utility, but to re-loop them into other yield-generating strategies, such as liquid staking tokens (LSTs) or yield-bearing stablecoins. For instance, on Aave’s Ethereum deployment, approximately 39% of borrowing demand is directed towards leveraging ETH staking rewards, while another 11.6% involves looping Ethena’s sUSDe. This recursive nature of borrowing can inflate reported TVL and yield figures, creating a complex web of interconnected positions that may amplify systemic risk during periods of market volatility. While it demonstrates the ingenuity of yield farmers, it also highlights the circularity inherent in some DeFi yield generation.

3. Perpetuals Funding Fees ($300 Million): Ethena’s Onchain Innovation
Perpetual futures (perps) funding fees contributed around $300 million to the overall yield, a category largely pioneered onchain by Ethena. Ethena’s synthetic dollar, sUSDe, derives its yield from a combination of staked Ethereum rewards and short funding rates on perpetual futures markets. This mechanism, which involves maintaining a delta-neutral position by shorting perpetuals against staked ETH, drew both significant praise for its innovation and considerable alarm regarding its potential risks when it launched in 2024. The funding rate is a periodic payment exchanged between traders holding long and short positions to keep the perpetual contract price pegged to the underlying asset. When the funding rate is positive, longs pay shorts, and vice versa. Ethena strategically leverages periods of high positive funding rates to generate yield for sUSDe holders. While innovative, the sustainability and scalability of this yield source are intrinsically linked to market sentiment and the demand for leverage in perpetual markets, making it susceptible to shifts in market dynamics.

4. Real-World Assets (RWAs) ($600-$900 Million): Bridging Onchain and Offchain
Real-world assets (RWAs) generated an estimated $600-$900 million in yield, signaling a growing trend of integrating traditional financial assets into the DeFi ecosystem. U.S. Treasuries held the largest share of the RWA market at about 41%, followed by private credit at 25%. This category represents a significant bridge between the permissionless world of DeFi and the regulated realm of traditional finance. By tokenizing assets like government bonds, real estate, or corporate debt, protocols can offer DeFi users exposure to stable, yield-bearing assets traditionally exclusive to institutional investors. The appeal lies in the relative stability and predictable returns of these assets, especially in a volatile crypto market. The growth of RWAs also aligns with increasing institutional interest in DeFi, as it provides a clearer pathway for compliance and risk management. However, the legal and operational complexities of tokenizing and managing RWAs remain considerable, requiring robust legal frameworks and secure custody solutions.

5. Network Staking Rewards and MEV (Remainder): The Foundational Layer
The remainder of the $8 billion yield originated from network staking rewards and Miner Extractable Value (MEV). Ethereum’s issuance, totaling roughly one million ETH in 2025, forms a foundational layer of yield for validators and liquid staking protocols. Staking rewards are distributed to participants who lock up their ETH to secure the network, earning a proportional share of newly minted ETH and transaction fees. The MEV-derived portion of staking yield, however, has been trending downward. MEV refers to the profit that validators (or miners, pre-merge) can extract by reordering, inserting, or censoring transactions within a block. Historically, frontrunning and arbitrage opportunities contributed significantly to MEV. The decline in MEV-derived yield is largely attributed to the proliferation of private order flow routing, which now handles approximately 90% of swaps. This practice directs transactions through specialized relays that prevent public mempool exposure, thereby reducing frontrunning opportunities and concentrating MEV capture among a select few entities. While this improves user experience by minimizing MEV-related losses, it centralizes MEV capture and reduces its broader distribution as a yield source.

Untapped and Underdeveloped Yield Opportunities

Beyond the primary sources, Vadym’s analysis also highlights several categories where yield capture remains negligible, pointing to significant potential for future growth and innovation.

Insurance Underwriting: In 2025, insurance underwriting generated a mere $5.5 million in premiums, primarily through Nexus Mutual. This figure is strikingly low given the inherent risks and volatility within the DeFi ecosystem. The lack of robust, scalable onchain insurance solutions represents a major gap, particularly as institutional capital seeks safer entry points. Developing more sophisticated and capital-efficient insurance protocols could unlock substantial yield for underwriters while providing critical risk mitigation for users.

Options Markets: Despite a robust CeFi options open interest ranging from $30-$50 billion, onchain options markets currently hold only about $1.8 billion in open interest, with no breakout structured products. This disparity suggests a massive untapped market. Options allow traders to bet on price movements or hedge against volatility, and the premiums paid by buyers to sellers represent a potential yield source. The complexity of onchain options, high gas fees on Layer 1, and the nascent stage of derivatives infrastructure have hindered their growth. However, with Layer 2 scaling solutions and improved user interfaces, this segment could witness significant expansion.

Volatility Selling and Protocol Risk Transfer: These areas remain largely unaddressed. Selling volatility (e.g., through options) and transferring protocol-specific risks (e.g., smart contract exploits, oracle failures) represent lucrative opportunities for those willing to provide capital and take on specialized risks. The analysis flags these as potential areas for growth as risk curation and sophisticated financial engineering become more competitive within DeFi. The evolution of structured products and derivatives that package and transfer these risks could unlock new layers of yield.

Case Study: Sky’s Balancing Act and Hybrid Yield Model

As a prime example of how protocols navigate and synthesize these disparate yield sources, the analysis examines Sky (formerly MakerDAO), the issuer of the Dai stablecoin. Sky’s 3.75% USDS Savings Rate has proven highly attractive, drawing significant capital amidst the broader yield compression. This strategy has contributed to a remarkable surge in Sky’s TVL, which increased by 38% in March, positioning it as the fourth-largest DeFi protocol. The sUSDS savings pool alone accounts for approximately $6.5 billion in deposits, underscoring the demand for stable, attractive returns.

Sky’s income generation reveals a sophisticated hybrid model. Approximately 70% of its income is derived from offchain origination, primarily through its Peg Stability Module (PSM) where USDC deposits earn rewards from Coinbase. Additionally, Sky maintains significant exposure to real-world assets (RWAs) through institutional products like BlackRock’s BUIDL fund and Janus Henderson funds, which invest in U.S. Treasuries and other short-term debt instruments. This offchain component provides a robust and relatively stable income stream, anchoring Sky’s ability to offer competitive rates.

The remaining 30% of Sky’s income flows from onchain sources. Spark, a lending protocol developed by MakerDAO, acts as Sky’s primary allocation arm, strategically routing capital into various yield-bearing opportunities. These include Sparklend itself, institutional lending via Maple Finance, Anchorage, and other DeFi protocols, depending on prevailing market rates and risk assessments. This dual approach allows Sky to leverage the stability and regulatory clarity of TradFi yields while retaining flexibility and access to the higher, albeit more volatile, returns available within DeFi. This model represents a strategic blueprint for how mature DeFi protocols might integrate traditional finance to enhance stability and attract broader capital.

Implications for Investors and the DeFi Ecosystem

The implications of this comprehensive yield analysis are profound, shaping the future trajectory of DeFi for both retail and institutional participants.

1. The Maturation of Yields: The convergence of DeFi stablecoin yields with U.S. Treasury rates signifies a maturation of the market. The era of unsustainably high, often speculative, yields appears to be waning. While this may disappoint some "yield farmers," it contributes to a more stable and predictable environment, potentially attracting more conservative capital.

2. Increased Scrutiny of Risk: The prevalence of recursive borrowing highlights the need for greater transparency and sophisticated risk assessment tools. Investors must understand the underlying mechanics of yield generation, distinguishing between genuinely productive capital and circular leverage. The "yield is yield" mentality is giving way to a more nuanced understanding of risk-adjusted returns.

3. The Growing Role of Real-World Assets: The substantial contribution of RWAs underscores their increasing importance in diversifying DeFi’s yield landscape and providing a stable foundation. This trend is likely to accelerate, fostering deeper integration between traditional finance and blockchain ecosystems. However, it also means that a significant portion of DeFi yield may become subject to traditional financial market dynamics and regulatory oversight.

4. Innovation in Structured Products: The analysis points to a clear demand for more sophisticated financial products that can package and optimize DeFi yields, particularly from AMM fees, insurance, and options. The development of fixed-rate products, interest-rate swaps, and structured tranches could unlock new avenues for risk management and capital deployment, catering to a wider spectrum of investor preferences.

5. Regulatory Landscape: As TradFi yield increasingly flows through permissioned channels into DeFi, the regulatory spotlight on these interactions will intensify. Protocols leveraging RWAs or integrating with traditional financial institutions will face increased pressure to comply with existing financial regulations, potentially leading to a more bifurcated DeFi landscape – one permissionless and one permissioned.

Looking Ahead: The Evolution of Onchain Finance

The $8 billion in onchain yield for 2025 paints a picture of a DeFi ecosystem that is evolving rapidly. It is moving beyond its speculative origins towards a more integrated and sophisticated financial paradigm. While the days of easily accessible, stratospheric yields may be largely behind us, the sector is demonstrating its capacity to generate substantial value through diverse and increasingly complex mechanisms. The strategic shift by protocols like Sky to blend offchain and onchain yield sources, coupled with the persistent demand for capital efficiency, indicates a future where DeFi acts as a powerful redistribution layer for global finance. This ongoing transformation sets the stage for a new generation of financial instruments, bridging the gap between digital assets and traditional markets, and ultimately redefining the landscape of onchain finance. The challenge for innovators and investors alike will be to navigate this evolving terrain, identifying sustainable yield opportunities while diligently managing the inherent risks of a still-nascent, yet powerful, financial revolution.