Ethereum is the largest programmable blockchain by total value locked and the primary infrastructure layer for decentralised finance. Launched in 2015, it introduced the concept of smart contracts — self-executing code that runs on a shared, permissionless network — and became the foundation on which the majority of DeFi protocols, stablecoins, and tokenised assets are built.
Why Ethereum exists
Traditional financial infrastructure is controlled by intermediaries: banks clear transactions, exchanges match trades, custodians hold assets. Every step introduces a counterparty, a fee, and a point of failure or censorship. For users without access to reliable banking infrastructure, or for financial products that require programmable logic without a trusted administrator, this model creates real constraints.
Ethereum's premise is that financial logic — lending, trading, settlement, ownership — can be encoded in software and executed on a network no single party controls. A smart contract on Ethereum runs exactly as programmed, is visible to anyone, and cannot be stopped by a bank, government, or corporation. Assets on Ethereum can move globally in minutes, settle with finality, and interact with other applications without a clearing house.
For investors already familiar with financial markets, Ethereum is most usefully understood as infrastructure: the equivalent of a settlement network or exchange backbone, but one that anyone can build on and that no entity owns. The protocols that run on top of it — lending markets, decentralised exchanges, stablecoin issuers — are analogous to the financial services that run on top of traditional clearing infrastructure.
How Ethereum works
Ethereum's core function is to maintain a shared ledger of state — who holds what, which contracts exist, what their current balances are — and update that state reliably when transactions are submitted.
Smart contracts. Programs deployed to Ethereum run exactly as written, with no ability to be modified or stopped by their creator once live. This immutability is both the source of Ethereum's value (trust without a counterparty) and one of its key risks (bugs cannot be patched by the original author without a specific upgrade mechanism being designed in).
Gas and fees. Every operation on Ethereum consumes computational resources, priced in "gas." Users pay gas fees to have their transactions included in the next block. Fee levels fluctuate with network demand: periods of high activity push fees up, quieter periods bring them down. Gas is always paid in ETH, regardless of what token or application the user is interacting with.
Validators and staking. Since Ethereum's transition from proof-of-work to proof-of-stake in 2022 (known as The Merge), the network is secured by validators — participants who lock up ETH as collateral (stake it) and are selected to propose and attest to new blocks. In return they earn staking rewards, paid in newly issued ETH. Staking creates a yield-bearing version of ETH and ties network security directly to the economic incentive of ETH holders.
EIP-1559 and the burn mechanism. Since 2021, a portion of every transaction fee is permanently destroyed (burned) rather than paid to validators. When network activity is high, the burn rate can exceed the rate of new ETH issuance from staking rewards, making ETH deflationary in net supply terms. When activity is low, issuance exceeds the burn and supply grows slightly. This mechanism links ETH's supply dynamics directly to demand for block space.
Layer 2 networks. Ethereum's base layer processes a limited number of transactions per second and can be expensive during periods of high demand. Layer 2 networks — rollups that batch transactions off-chain and settle proofs back to Ethereum — extend throughput while inheriting Ethereum's security. A growing share of DeFi activity now occurs on Layer 2s, with Ethereum acting as the settlement and data availability layer underneath.
Ethereum's network economics
Ethereum does not have a traditional business model — it is a protocol, not a company. But ETH as an asset has a set of economic properties that determine its supply, demand, and the yield available to holders.
Fee revenue to validators. Every transaction on Ethereum generates fees. The portion that goes to validators (the "priority fee" or tip) is direct income to the network's security providers. Higher network activity means higher total fees, which in turn means higher rewards for validators, which can attract more stake and strengthen security.
The burn as a value accrual mechanism. The base fee portion of every transaction is burned. This reduces the outstanding supply of ETH over time when demand for block space is sustained. Unlike dividends or revenue distributions, the burn accrues to all ETH holders proportionally and silently — the fewer tokens outstanding, the larger the share of the network each remaining token represents.
Staking yield. ETH holders who stake (either directly as validators or through liquid staking protocols like Lido) earn yield in the form of newly issued ETH plus a share of priority fees. This yield fluctuates with the total amount of ETH staked: as more ETH is staked, the annual percentage yield per staker falls. For investors, staking yield is the closest equivalent to a dividend or coupon — a recurring return for holding and locking the asset.
ETH as gas. All fees on Ethereum must be paid in ETH, regardless of which application a user is interacting with. This creates structural demand for ETH that scales with the total activity on the network — including activity by users who hold entirely different assets.
Reading Ethereum's metrics
Chain TVL. The TVL figure for Ethereum represents the total assets locked in DeFi protocols deployed on the chain — lending protocols, DEXs, staking contracts, and more. It is not Ethereum's own balance sheet, but rather a measure of how much capital the ecosystem built on top of it manages. A sustained rise in chain TVL signals growing adoption of Ethereum as a financial platform; a sustained decline suggests capital is migrating to alternative chains or DeFi is contracting overall.
Ethereum's share of total cross-chain TVL is the more useful long-run signal than the absolute number. A rising absolute TVL alongside a falling market share means the overall DeFi market is growing faster than Ethereum specifically — which may or may not be a concern depending on whether Ethereum is retaining the highest-value activity (lending, stablecoin settlement) while ceding lower-margin activity (trading volume) to specialist chains.
Chain fees. Annualised network fees are the clearest proxy for genuine demand for Ethereum block space. Unlike TVL, which can be inflated by incentives or recycled capital, fees require real users paying real ETH to transact. A period of rising fees indicates that demand for Ethereum's block space is growing; falling fees — especially if TVL is stable — may indicate activity migrating to Layer 2s or competing chains, or simply a quieter market environment.
Market cap relative to chain TVL. For a Layer 1 blockchain, the ratio of ETH's market cap to total chain TVL is an approximate valuation multiple — how much the market pays per dollar of economic activity secured by the network. This is structurally different from the FDV/TVL ratio used for DeFi protocols, but serves a similar interpretive purpose: a high multiple suggests growth expectations are priced in; a low multiple suggests the market is sceptical of the network's long-run activity levels.
Risk factors
Layer 2 fee migration. As Layer 2 networks grow and handle an increasing share of user activity, a larger proportion of transactions bypass Ethereum's base layer entirely. This reduces the fees that flow through the burn mechanism and to validators. If Layer 2 adoption continues to accelerate without a corresponding rise in base layer demand (from settlement, data availability, or new use cases), Ethereum's fee revenue could remain structurally lower than its TVL figures suggest.
Competitive pressure from alternative Layer 1s. Ethereum faces ongoing competition from faster, cheaper chains. While Ethereum retains significant advantages in security, developer tooling, and DeFi liquidity depth, the gap in raw performance has narrowed. Capital and developer attention are not fully sticky — a sustained performance advantage from a competing chain could erode Ethereum's TVL and fee share over time.
Execution and upgrade risk. Ethereum's development roadmap involves a series of complex protocol upgrades coordinated across a large, decentralised set of validators and client teams. Upgrades that introduce bugs, cause consensus failures, or go significantly off-schedule create uncertainty. The decentralised nature of development makes Ethereum resilient to single points of failure, but slower and harder to coordinate than a protocol with a single development team.
Regulatory risk. Ethereum is the most prominent non-Bitcoin blockchain globally, which makes it a focal point for regulatory scrutiny. Uncertainty around whether ETH is classified as a security or commodity in major jurisdictions, and how staking yield is treated for tax purposes, creates ongoing legal risk for both the asset and the applications built on top of it.
How to monitor Ethereum without daily research
The three signals worth tracking regularly are chain TVL trend, annualised fee revenue, and the burn rate relative to issuance. Together they give a picture of whether network demand is expanding, contracting, or simply shifting across layers. TokenSignal tracks ETH's key metrics automatically — add it to your watchlist for a daily digest and alerts when meaningful changes occur. Free for up to 5 assets.
Related: What is TVL in DeFi?