A liquid staking token is a transferable claim on staked capital, issued by a staking pool so the depositor holds something tradable while the underlying stays locked in a validator. Two designs dominate. A rebasing token holds its price near the underlying and grows the holder's balance as rewards arrive; an exchange-rate token holds the balance fixed and grows what each unit redeems for. That choice looks cosmetic and is not, because it decides where the token can be used, how the reward is taxed, and what a market discount actually means.
An LST's market price and its redemption value are two different numbers. They converge only while the protocol's withdrawal queue is short enough for an arbitrageur to close the gap, which is exactly the condition that fails during stress.
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Rebasing and exchange rate are two answers to one accounting question
The question is where a reward should land: in the number of tokens, or in the value of each token. Lido answers it one way. stETH is an ERC-20 rebasing token whose holder balances update daily from oracle reports, and the rebase is implemented through shares rather than balances, so that balanceOf(account) equals shares[account] multiplied by totalPooledEther divided by totalShares.1 Deposits convert to shares; the shares stay fixed while the pool's ether grows.
The wrapped counterpart answers it the other way. wstETH is described in Lido's own contract documentation as an ERC-20 value-accruing wrapper whose balance does not change with each oracle report, but whose value in stETH does.3 Same economics, opposite ledger. The academic taxonomy calls these rebase LSTs and reward LSTs, and both are pegged claims on staked capital rather than derivatives or synthetics.5
One line in Lido's contract documentation deserves more attention than it gets: when an oracle report is applied, the supply of the token is increased or decreased algorithmically, based on staking rewards or slashing penalties on the beacon chain, execution-layer rewards, and fulfilled withdrawal requests.1 Increased or decreased. A rebasing balance can fall. Most explainers of this category describe the mechanism only in the direction that goes up.
Why the wrapper exists, and what that tells you
Lido states the purpose of wstETH directly: it is used mainly as a compatibility layer for integrating stETH into DeFi protocols that do not support rebasable tokens, and especially for bridges to layer 2 networks.3 That sentence is a design verdict from the protocol that built the largest rebasing LST.
The academic survey explains the mechanics behind it. Most AMM-based decentralized exchanges, including the largest, do not support trading rebase LSTs. Rebase LSTs are also not used as lending collateral, because the staking rewards would have to be divided between borrower and lender, whereas with a reward LST all of the accrual lands on the collateral provider.5 Reward-based LSTs consequently became a dominant collateral asset in DeFi lending.
Design consequence, stated plainly. If you ship a rebasing token you will ship a wrapper as well, and the wrapper is where the liquidity, the collateral integrations and the bridge deployments end up. In our view that means the rebasing token is the user-facing surface and the exchange-rate token is the real one, and it is worth deciding which of the two you actually want to be canonical before either exists.
The two accounting paths, worked
Take the shares formula and run a round number through it. Deposit 100 ETH into a pool whose totalPooledEther is 1,000 and whose totalShares is 1,000. You receive 100 shares, and balanceOf reads 100 stETH. The pool then earns 30 ETH in rewards, so totalPooledEther becomes 1,030 while totalShares is unchanged. Your balance now reads 100 multiplied by 1,030 divided by 1,000, which is 103 stETH, and the price stayed at one.1
Wrap at the start instead and you hold 100 wstETH throughout. Your token count never moves. What each wstETH redeems for went from 1.00 stETH to 1.03 stETH. Identical economics, two entirely different ledgers, and two entirely different sets of downstream integrations, tax questions and accounting entries.
Now run the same formula with a penalty. If the pool loses 10 ETH to slashing and inactivity, totalPooledEther falls to 990 and the rebasing balance reads 99 stETH while the wrapped holder still shows 100 wstETH now worth 0.99 stETH each. The arithmetic is illustrative rather than a live protocol reading, and the figures are chosen to be legible. The direction is not illustrative: it is documented protocol behavior.1
Where the market price and the redemption value come apart
Lido's public risk disclosure, last updated 20 February 2026, sets out two pathways to ETH for a token holder. The primary route redeems through the protocol's contracts, and the amount received is based on the protocol's accounting of the underlying staked ETH rather than on secondary-market liquidity, but it depends on Ethereum's validator withdrawal and exit mechanics and is subject to queues, limits and timing conditions at that upstream layer. The secondary route trades on a venue and carries price deviation, slippage, widening spreads and adverse execution during stress.4
The disclosure then names the mechanism that turns a queue into a discount. When many stakers independently want to unstake, the network's allowed unstaking throughput becomes the bottleneck, creating temporary illiquidity that can affect the secondary trading price. And, in Lido's own words, if the primary redemption window is congested or faces long delays, market participants may be unable to arbitrage price dislocations in times of market stress.4 That is the peg mechanism failing from the inside, described by the issuer.
Depeg episodes are documented rather than hypothetical. The academic survey finds that LST market prices track staking rewards with comparable accuracy but that temporary depegs occur during extreme market events, naming the Terra and Luna collapse and the FTX insolvency, and that decentralized LSTs can also depeg upward when too few node operators are available to run validators.5 We are deliberately not publishing a headline discount percentage for any specific episode here, because we could not resolve one to a live primary source, and an unsourced number in this position is worse than no number.
The withdrawal queue is not a detail, it is the design
Lido represents a withdrawal request as unstETH, a non-fungible ERC-721 token standing for a position in the protocol-level withdrawal queue, and the queue itself is first in, first out.2 Encoding a queue position as an NFT is an honest design: it makes the wait an object the holder can see, hold and trade rather than a spinner in a user interface.
The risk disclosure is equally direct that the wait exists. Withdrawals from staking may be subject to protocol-defined queues, limits, delays and other conditions, and users may not be able to exit positions immediately.4 The upstream constraint is the base chain's exit mechanics, which the staking pool does not control and cannot shorten.
So the design consequence for anyone issuing one of these: publish the queue. Current length, the mechanism that sets it, and what a holder's options are while it is long. A product promising liquidity that is actually promising secondary-market liquidity has made a claim about somebody else's order book, and the staking entry covers the base-layer exit mechanics that constrain the whole arrangement.
Composability is the reason to build one and the reason to worry
The integration surface is large and documented. Lido lists wstETH as collateral on Aave v3 markets on Ethereum mainnet, Arbitrum, Scroll, Base, Optimism and Polygon PoS, and as collateral on Maker; steCRV, the Curve stETH and ETH liquidity pool token, is also Maker collateral; and multiple liquid restaking projects are built on top of stETH and wstETH.2 Each of those is a reason the token is useful and a channel through which a problem propagates.
One integration decision matters more than the rest. The prevailing approach for money markets is to treat liquid staked tokens as backed by their native exchange rates against ETH, implying a one stETH equals one ETH pricing invariant, and Lido names Aave v3 markets and Mellow LRT pricing as applications of it.2 Read what that does. A secondary-market discount does not automatically liquidate positions priced off the exchange rate. It also means the money market, not the trader, is carrying the redemption risk. Whether that is the right trade depends entirely on whether you believe the queue, and in our view very few integrations have written down what they believe about it.
The feedback path is short. Lido documents that undercollateralized wstETH positions on Maker can be liquidated by unwrapping the wstETH and swapping it for ether on Curve.2 The academic survey completes the loop: leveraged staking strategies magnify the exposure, significant depegs above liquidation thresholds could trigger cascading liquidations, and that could force staking providers to unstake large amounts of ETH.5 A lending liquidation becomes selling pressure in the same pool that sets the peg.
The three decisions we make founders take first
Pick rebasing or exchange rate against a written list of the venues you need, not against which one reads better in a wallet. That list is your distribution surface and it is decided at the same moment as the token model, which is the mistake founders discover late.
Settle the reward-recognition question with counsel before launch, not after. IRS Revenue Ruling 2023-14 holds that the fair market value of validation rewards is includible in gross income in the taxable year the taxpayer gains dominion and control over them.6 A design crediting balances daily and a design accruing value into a rate present that standard very differently. We are not tax advisers and this page is not tax advice; the point is that the token model is upstream of the answer and most teams treat it as downstream.
Then publish the queue, the operator set and the loss-sharing rule, in that order. Underneath all three sits the same question we anchor everything to: the LST is infrastructure for a staking business, and if the fee and issuance flow beneath it is thin, no amount of tradability fixes that. This page is reference material for design work. It is not investment advice and not a recommendation to hold any asset.
Common questions
What is the difference between stETH and wstETH?
They hold the same claim with opposite accounting. stETH is a rebasing ERC-20 whose balance updates daily from oracle reports, so the token count grows and the price stays near ETH.1 wstETH is a value-accruing wrapper whose balance never changes while its value in stETH rises, and Lido states it exists mainly as a compatibility layer for DeFi protocols and bridges that cannot handle rebasing tokens.3 Either converts to the other through a trustless wrapper, so they share liquidity.
Can a liquid staking token lose its peg?
Yes, and the issuer says so. Lido's public risk disclosure states that in stressed conditions secondary markets may trade at a discount or premium, that users may receive materially less ETH than expected on third-party venues, and that if the primary redemption window is congested, market participants may be unable to arbitrage the dislocation at all.4 The mechanism is the withdrawal queue: when many stakers unstake at once, network throughput becomes the bottleneck. Documented depegs cluster around extreme market events.5
Is a liquid staking token the same as staking?
No. Staking directly means running or contracting a validator and holding the exit rights yourself. Holding an LST means holding a claim on a pool that stakes on your behalf, which adds a smart contract, an operator set chosen by someone else, and a protocol-level withdrawal queue between you and the underlying ETH.4 You gain transferability and DeFi usability. You take on counterparties that direct staking does not have.
Why do DeFi protocols use the wrapped version of a rebasing token?
Because rebasing breaks the accounting most protocols rely on. Rebase LSTs are largely unsupported for trading on AMM-based decentralized exchanges, and they are not used as lending collateral because staking rewards would have to be split between borrower and lender, whereas with an exchange-rate token all accrual lands on the collateral provider.5 Lido's own documentation describes wstETH as existing mainly to integrate with protocols and bridges that cannot handle rebasing.3
Are liquid staking rewards taxable?
That is a question for your tax counsel, and it turns on facts and jurisdiction. In the United States, IRS Revenue Ruling 2023-14 holds that the fair market value of validation rewards is includible in gross income in the taxable year the taxpayer gains dominion and control over them.6 A rebasing design that credits a balance daily and an exchange-rate design where value accrues into a redemption rate present that standard differently. Nothing here is tax advice.
See LST and LRT Tokenomics Design for how this applies in practice.
Sources
- Lido core contract documentation
Lido Docs, 2026
stETH as an ERC-20 rebasing token, the shares accounting formula for balanceOf, and the statement that supply is increased or decreased algorithmically on rewards, slashing penalties, execution-layer rewards and fulfilled withdrawals. - Lido tokens integration guide
Lido Docs, 2026
unstETH as an ERC-721 withdrawal-queue position, the named Aave v3, Maker, Curve and Mellow integrations, and the exchange-rate pricing invariant used by money markets. - wstETH contract documentation
Lido Docs, 2026
wstETH as a value-accruing wrapper whose balance is unchanged by oracle reports, and its stated purpose as a compatibility layer for protocols and bridges that do not support rebasing. - Public Risk Disclosure (PRD)
Lido Docs, Lido Labs Foundation, 2026
Last updated 20 February 2026. Primary and secondary redemption pathways, withdrawal queues and delays, stressed-market discounts and premiums, and the statement that a congested primary redemption window can prevent arbitrage of price dislocations. - SoK: Liquid Staking Tokens (LSTs) and Emerging Trends in Restaking
arXiv preprint 2404.00644v3, 2024
Rebase versus reward LST taxonomy, the DEX and lending-collateral incompatibility of rebasing tokens, documented temporary depegs during extreme market events, and the leveraged-staking cascading-liquidation path. - Revenue Ruling 2023-14
U.S. Internal Revenue Service, 2023
Validation rewards are includible in gross income in the taxable year the taxpayer gains dominion and control over them.
Last reviewed 2026-08
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