Staking

In brief

Native staking commits a network’s own asset to consensus, through rules that may use bonded locks or delegated stake ownership. Ethereum keeps a 32 ETH activation minimum while allowing a compounding validator’s effective balance to reach 2,048 ETH; holders with less can use third-party pools. Solana holders typically delegate to a validator and pay a commission on rewards; in-protocol slashing is not live. Cosmos SDK chains often combine delegation with an unbonding delay during which stake can still be slashed for earlier offenses. Rewards are variable protocol payments, not a promised yield. Pooled and liquid staking add smart-contract and operator risk. Marketing uses “stake” for many unrelated lockups. Those products are not this article’s subject unless they actually commit assets to consensus.

What staking means here

ethereum.org: staking is depositing ETH to activate validator software that stores data, processes transactions and adds blocks. The staking FAQ adds the reason for the bond: validators can propose and attest, so funds must be at stake so the protocol can punish dishonesty.

That is protocol staking. It is not:

• depositing coins on an exchange and hoping the exchange pays you;
• supplying tokens to a lending pool;
• providing liquidity to an AMM (see Liquidity pools);
• locking a governance token in a farm that mints another token.

Those may be called “staking” in an app. Economically they are different contracts.

Native protocol staking

Native means the base chain’s rules, not a third-party wrapper.

On Ethereum, the native act is a deposit to the protocol that creates or funds a validator. The activation minimum remains 32 ETH. Pectra’s EIP-7251 allows a compounding validator to have an effective balance up to 2,048 ETH; that ceiling is not a new minimum. You can participate with less through third-party pools, but those pools are not native protocol objects. Beacon-chain deposits have been possible since 1 December 2020. Withdrawals of principal became possible after the Shanghai/Capella upgrade on 12 April 2023.

On Solana, native participation for most holders is delegation: move SOL into a stake account (a different account type from a payment account) and delegate it to a validator vote account. A self-controlled stake account has separate stake and withdrawal authorities; the validator does not need either key. Rewards are issued per epoch and split after the validator’s commission.

On a Cosmos SDK chain, native staking is bonding the chain’s staking token (ATOM on the Hub) to a validator in the active set. Undelegation starts unbonding. The Cosmos Hub validator FAQ specifies a 3-week period for ATOM; other SDK chains choose their own UnbondingTime. During that wait, rewards typically stop and slash risk for offenses committed while bonded can remain.

Validator staking versus delegation

Validator staking (solo / home): you supply the bond, hold the keys and run the software. Ethereum’s “home staking” path is the clear example: at least 32 ETH, execution + consensus + validator clients, direct protocol rewards and full operational burden.

Delegation: you choose an operator rather than running the validator yourself. Solana and Cosmos expose delegation in protocol. Ethereum staking-as-a-service can look similar operationally, but it is a service arrangement: you supply at least 32 ETH, entrust the validator signing key to an operator and retain withdrawal control. The operator can sign badly and cause penalties even if it cannot redirect correctly configured withdrawals.

Delegating is not lending. The operator should not be able to spend your coins as spending money. They can often get you slashed or skip rewards. Read the account model.

Reward mechanisms

Rewards are whatever the protocol pays for duties done:

• Issuance — new coins.
• Fees — on Ethereum, priority fees to the proposer’s fee recipient (the EIP-1559 base fee is burned, not staked).
• Commissions — Solana (and many Cosmos validators) take a percentage of rewards, then pass the rest to delegators.

Rates move with how many others are staked, how often your validator is selected, uptime, and fee markets. A website APR is a snapshot, not a coupon. This article will not print a yield table.

Lockups and unbonding

Not every chain freezes coins the same way.

• Ethereum used to lock deposits until Shanghai/Capella. Exits are now possible but rate-limited by the protocol so a crowd cannot leave in one epoch (ethereum.org Merge FAQ). That is a queue, not a 21-day Cosmos unbond.
• Cosmos SDK unbonding is a chain parameter (Cosmos Hub: three weeks). The delay exists so evidence of misbehavior can arrive before the bond walks away.
• Solana delegation and deactivation take several epochs, with stake changing state at epoch boundaries. Network-wide rate limits make the exact duration variable, so there is no fixed day count to quote.

If a product advertises “instant unstake,” ask whether you are exiting the protocol or selling a liquid-staking token to someone else.

Risks (not a horror poster)

Slashing risk. Ethereum can destroy stake for equivocation or contradictory attestations. Cosmos SDK chains can slash for double-signing and for too much downtime; delegators on that validator are typically hit too. Solana’s official staking page: no in-protocol slashing currently. Do not import Ethereum’s slash table onto SOL.

Validator / operator risk. Downtime, key theft, a buggy client, or a dishonest SaaS operator. Even without slashing, missed votes are missed income.

Protocol risk. Bugs in consensus clients, unexpected hard forks, or a social decision about which chain is canonical.

Custody risk. An exchange that “stakes for you” holds the coins. You have an IOU. ethereum.org ranks centralized-exchange staking as the highest trust assumption and notes that huge pooled validators are a concentration target.

Smart-contract risk. Pools and liquid-staking tokens are programs. They can be wrong even if the base protocol is fine.

Liquidity / lockup risk. You may be unable to sell or spend the bonded coins when you want.

None of these is “interest-rate risk” in the bank sense. There is no deposit-insurance frame here.

Pooled and liquid staking

Pooled staking aggregates deposits to fund one or more validators. Ethereum pools are third-party designs; ethereum.org states that they are not native to the network.

Liquid staking mints a token (stETH, rETH, and others are named on ethereum.org as examples of derivatives, not as recommendations) that tracks a claim on staked ETH plus rewards. You can often trade that token without waiting for a validator exit. You take on the token’s contract, the operator set, and possible depeg from the underlying.

Staking is not lending

A loan is a claim on a borrower. Protocol staking is a bond governed by a rule set, not a loan contract with a promised interest rate. Solo staking need not introduce a borrower at all; a pool, service or exchange adds its own operator, contract or custodian exposure. Liquidation engines, credit checks and term sheets belong in DeFi, not here.

If a screen says “stake USDC to earn 8%,” that is almost certainly a lending, looping or points program. The word has been stretched until it means “lock and hope.”

Custody choices, briefly

• Self-custody + own validator — maximum protocol rewards and operational load (Ethereum home staking).
• Self-custody + delegation — Solana/Cosmos typical path; you pick the operator.
• SaaS — keys split; operator risk.
• Pool / LST in your wallet — contract risk, often still self-custodied token.
• Exchange — custodian risk and stake concentration.

See also Self-custody in Batch B for keys versus accounts.

What this article is not saying

No provider is recommended. No APR is forecast. “Sustainable” on ethereum.org’s staking page is their energy comparison, not an investment thesis. Staking can lose money.