How Often Has stETH Depegged, and Why?

A lot of first-time buyers assume stETH “equals ETH” until one day they see 1 stETH = 0.93 ETH and feel a small drop in the stomach. stETH was never a 1:1 stablecoin to ETH — it pegs to “the promise that one day you can redeem 1 ETH via Lido”. These two things are equal most of the time and a few percent apart under stress.

Laying out every depeg since launch, the pattern is surprisingly clean: the same framework explains all of them.

What stETH is actually pegged to

Let’s nail the definitions, otherwise every depeg story will be misread. stETH is the liquid staking token (LST) issued by Lido; each stETH corresponds to one ETH that Lido has staked on your behalf. Its peg is held up by three legs simultaneously:

• On-chain redemption — Lido’s withdrawal queue, gated by Ethereum’s withdrawal speed, can return 1 ETH per stETH in hours to days.
• DEX arbitrage — the Curve stETH/ETH pool collapses short-term price gaps.
• CEX spot — a few exchanges quote stETH directly, providing a third price stream.

Any leg breaking causes a depeg. The depeg is never a failed mechanism — it is a real-time reflection that the redemption path slowed down and arbitrage got more expensive. The full mental model lives in what is liquid staking.

Every depeg worth writing down

By May 2026, stETH has had four depeg episodes worth documenting:

The deepest was 2022 at 0.935 and the longest-lived; the dominant trigger shifted from “centralized blowups” to “restaking ecosystem incidents”. Both shifts reflect changes in stETH supply, secondary depth and holder composition.

Why 2022 went so deep

This one deserves a stand-alone section because it’s the textbook case:

• Ethereum withdrawals had not been enabled — the Shapella upgrade only landed in April 2023, so Curve was the only exit.
• stETH holdings were extremely concentrated — funds like Celsius and 3AC had borrowed massive amounts of ETH to long stETH with leverage; when they collapsed, the sell pressure was one-sided.
• The Curve pool went severely lopsided — stETH share spiked past 80%, the curve entered its steep zone, and every additional sale moved the price exponentially more.

The user-facing picture: DEX quoted stETH at 0.94, CEX at 0.93, and there simply was no 1:1 redemption channel on-chain. Only after Shapella opened native withdrawals did stETH return to peg.

The real lesson — “can you redeem” sets the floor of a depeg; “will it depeg” is a separate question.

Why the later depegs stayed shallow

After 2023, no depeg went below 0.96. Not because “the market got smarter” — because the mechanism got patched:

1. Native Ethereum withdrawals went live post-Shapella, capping arbitrage cost.
2. Lido added its Withdrawals NFT module, letting users submit a redemption ticket with a known max wait.
3. Secondary depth thickened — Curve plus Uniswap V3 concentrated liquidity pools cut slippage by an order of magnitude vs 2022.
4. Leverage decentralized — instead of a handful of funds, exposure now spreads across Pendle / Morpho / Aave loops.

The flip side of better mechanics is more frequent triggers — anything bad in the restaking ecosystem can ripple to stETH, because stETH is the underlying of almost every LRT. Higher frequency, shallower depth — two sides of the same coin.

What arbitrageurs do during a depeg

Understanding the arbitrage path matters for deciding whether to panic. Decomposing 2024.08:

• t+5 min: CEX spot crashes, leverage gets liquidated, some holders dump stETH into Curve, price hits 0.97.
• t+15 min: arbitrageurs see the 3% gap, buy stETH and immediately submit Lido native redemption tickets, locking in 3%.
• t+1 h: redemption queue is estimated at 12 hours. Funding cost = 12h of borrowed ETH interest ≈ 0.05%. Profit / cost ratio above 50x. Arbitrage volume scales fast.
• t+8 h: price back to 0.992.
• t+12 h: redemptions settle, the spread fully collapses.

The whole thing involved zero institutional bailout — it was pure math and queue mechanics. Once you internalize this, your patience profile during depegs changes completely.

How a normal holder should read this

If you just hold stETH as “yield-bearing ETH”, the depegs cost you essentially nothing as long as you don’t panic-sell at the trough. But if you’ve done any of the following, redo the math:

• Used stETH as collateral on Aave / Morpho to loop into more ETH — liquidation thresholds can get punctured during the dip.
• Played PT / YT directional trades on Pendle — sharp price moves rewrite implied yield.
• Wrapped stETH into an LRT and restaked — adds the LRT’s own depeg risk on top, see real 2026 restaking risks.

The single best filter for “should I panic” — is the native Ethereum withdrawal channel open. When it is, depegs stay shallower than 0.96. When it isn’t (rare temporary windows around upgrades), reassess position size.

Three metrics you can keep watching

If you’re a long-term holder, these three lead the price:

• Lido withdrawal queue length — above 5 days means the exit path is slow, the tolerable spread widens.
• Curve stETH/ETH pool composition — either side above 70% is a pre-imbalance signal.
• stETH liquidation-line distribution in lending protocols — pullable from TheGraph; dense bands amplify small moves into cascades.

For LST selection beyond Lido, see Lido vs Rocket Pool and the broader staking guide.

Treat depegs as a health check

stETH’s depegs were never mechanism failures; they were stress tests that revealed the system’s real shape. An asset that fell to 0.935 in 2022 only depegs to 0.972 today — that itself is a progress report.

Don’t aim for “no depeg ever” — that is unrealistic. Aim to understand each depeg’s cause, the arbitrage path, the redemption window, so that next time you know whether to sit still or actually reduce. That kind of literacy beats any technical indicator for the long-term LST holder.