The biggest DeFi trends are the growing role of stablecoins, activity spreading across multiple blockchain networks, and closer attention to how on-chain activity is measured and regulated. DeFi is not one product or one level of decentralization: it is a collection of programmable financial services whose risks depend on the protocol, assets, intermediaries and legal setting involved.
What decentralized finance does
Decentralized finance, or DeFi, uses software deployed on blockchains to provide or support financial services. Depending on the project, these include exchanges, lending and credit, payments, wallets and other applications. A user may interact with a smart contract—software that carries out actions according to programmed rules—rather than relying on a conventional financial institution to process each transaction.
That description does not mean every DeFi service is fully decentralized or has no intermediaries. A project may depend on developers, governance groups, stablecoin issuers, wallet providers, oracles or other protocols. The responsibilities and control points differ across projects and layers. The CFTC Technology Advisory Committee’s 2024 report on DeFi describes a range of applications and custody arrangements; the BIS’s 2025 analysis likewise examines DeFi by function and its links to financial stability.
What are the biggest DeFi trends?
Stablecoins are a central connective asset
Stablecoins are crypto tokens designed to maintain a value linked to an asset such as a currency. In DeFi, they can serve as a unit for trading, a borrowing or lending asset, or a way to move value between applications without continually switching into a more volatile cryptoasset. Their practical role depends on the particular token, its issuer and redemption arrangements, and the blockchain on which it exists.
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The Federal Reserve’s April 8, 2026 note reported that aggregate stablecoin market capitalization reached $317 billion on April 6, 2026, after growing by about 50% during 2025. Those are dated observations, not a live market total. The note also reported that transaction volume and use in DeFi protocols surged during 2025. Growth can deepen stablecoins’ usefulness in applications, but it also increases the importance of reserve quality, redemption pathways and the companies that connect issuers to users. The Federal Reserve’s discussion highlights complex intermediation, wallet partnerships, retail adoption and run risk.
DeFi is spread across more networks
DeFi is not confined to a single blockchain. ESMA’s September 2025 risk report estimated DeFi total value locked (TVL) at EUR 106 billion at the end of the first half of 2025, a 4% decrease over that half-year. It reported Ethereum held 59% of TVL, while Solana, Bitcoin and Tron gained ground. These are estimates for a defined period and data basis, not a current cross-chain tally. ESMA’s report provides the period-specific figures.
More networks mean more choices, but also more distinctions to check. Assets with the same name on separate blockchains exist on different ledgers and are not automatically interchangeable. Moving assets between networks can add dependencies on bridges or other mechanisms, each of which has its own design and operational risks.
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Measurement and oversight are getting more attention
As activity spans chains and applications, analysts and policymakers face a harder task: deciding what a transaction count, transfer value or TVL estimate actually represents. At the same time, official attention is adapting to crypto products and transactions. Neither better data nor new guidance makes every project easier to classify or safer to use; both make it more important to ask what a claim covers.
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TVL is an estimate of assets deposited in or attributed to DeFi protocols under a particular methodology. It is not the same as revenue, unique users, completed economic activity or the amount of money at risk. A TVL figure may change when token prices move, collateral is reused or counted across applications, or the set of chains and protocols included changes. Cross-chain comparisons are especially sensitive to these choices.
Transaction counts and transfer values also need interpretation. One transfer may be part of a larger series of contract interactions, and technical activity is not automatically equivalent to a distinct payment or economic event. The authors of BIS Working Paper 1377, published September 15, 2026, explain how aggregation, smart-contract classification and cross-chain use cases can alter estimates. They conclude: “The findings imply that on-chain indicators should be treated as noisy approximations rather than direct measures of economic activity.”
Public blockchains make transactions visible, but visibility alone does not reveal all the context needed to interpret flows or their macro-financial significance. BIS Project Atlas, developed by the BIS Innovation Hub Eurosystem Centre, De Nederlandsche Bank and Deutsche Bundesbank, combines off-chain exchange data with on-chain node data to vet and contextualize cryptoasset flows. It is an example of triangulation, not a complete census of DeFi.
When someone cites a DeFi statistic, check:
- Definition: What does the source count as TVL, an active address, a transaction or a transfer?
- Coverage: Which protocols and chains are included, and are assets counted in more than one place?
- Valuation: Which prices and date are used to value deposited assets?
- Time period: Is the figure a snapshot, a change over a period or a recurring measure?
- Interpretation: Does the metric measure an on-chain event, an estimated value or an economic outcome?
How to compare DeFi applications
A large TVL number or a familiar name cannot establish that an application is appropriate for a particular user. Compare the features that determine how it works and where control or dependencies sit.
| What to examine | Questions to ask |
|---|---|
| Use case | Is the application for exchange, borrowing or lending, payments, a stablecoin, a wallet or a tokenized asset? |
| Chain and interoperability | Which network holds the asset? If it moves across chains, what additional mechanism or service does that movement depend on? |
| Custody and control | Is the wallet custodial or self-custodial? Who controls the keys, and who can intervene in the service? |
| Stablecoin arrangements | Who issues the token? What supports its value, how does redemption work, and which third-party providers are involved? |
| Protocol and operations | What are the smart-contract design, upgrade authority, governance process, oracle dependencies and security arrangements? |
| Measurement | How are TVL or activity defined? Which chains are covered, how is reused collateral treated, and what is the price date? |
| Legal scope and location | Which asset, service, user and jurisdiction are relevant? A broad label such as “DeFi” does not answer those questions. |
Is DeFi safe?
There is no single safety rating for DeFi. A user can face software vulnerabilities, flawed contract logic, compromised keys, governance decisions, oracle failures, or problems in services and protocols on which an application depends. Financial risks can include volatile collateral, unstable markets and failures in a token’s reserve or redemption arrangements. Self-custody shifts key control to the user; it does not remove the risk of loss.
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Risks can also extend beyond an individual application. In BIS Paper 156, published April 15, 2025, the authors discuss information asymmetries, market inefficiencies and possible cryptoization risks in emerging markets, alongside DeFi’s functions and financial-stability implications. The paper’s proposed policy approaches include tailoring interventions to DeFi functions and strengthening stablecoin oversight; it notes that its views are those of its authors, not necessarily the BIS or member central banks.
Stablecoin growth can also connect digital-asset activity more closely to payment services and conventional finance. The Federal Reserve’s April 2026 note points to complex intermediation between issuers and service providers, vertical integration of business functions, and faster retail adoption, including through digital-wallet partnerships. These developments can create or amplify vulnerabilities, including the possibility of runs.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the 2026 U.S. regulatory action does—and does not—establish
The SEC issued an interpretive release on March 17, 2026, effective March 23, concerning the application of federal securities laws to certain crypto assets and transactions. CFTC guidance accompanied it on the agency’s administration of the Commodity Exchange Act consistent with that interpretation. The SEC release record describes the action’s scope.
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This is not a blanket classification of every token, protocol or DeFi service, and it does not settle the legal treatment of every business model or jurisdiction. A legal conclusion about a specific asset or service depends on the facts and applicable law; check current guidance for the relevant location and activity.
How to read DeFi trend claims
Treat trend reports as evidence about a defined measure and period, not as automatic proof of adoption, safety or economic importance. A useful report should explain its chain and protocol coverage, metric definitions, valuation date and treatment of overlapping activity. For example, ESMA’s first-half 2025 TVL estimates describe a specific period, while BIS’s later measurement paper explains why different data choices can produce different activity estimates. Neither should be repackaged as a directly comparable live total.
Separate three questions that are often collapsed into one: whether a protocol or asset is being used, how much value a particular methodology attributes to it, and whether that activity is economically sustainable or safe. Public data can help answer parts of the first two; they do not, on their own, resolve the third.
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