Crypto Gloss

LST Yield Sources

Definition:

Liquid staking token (LST) yields derive from rewards earned by the underlying Ethereum validators — specifically: consensus layer issuance (newly minted ETH for participation in proof-of-stake), execution layer priority fees (tips from Ethereum users included in transactions), and MEV (additional value extracted by block proposers through transaction ordering). Understanding the breakdown of these components matters because they have different risk profiles, volatility, and sensitivity to network conditions. When you hold stETH, rETH, or cbETH, you are receiving a proportional share of all three sources, minus protocol operator fees.

Component 1: Consensus Layer Rewards

What it is: Newly issued ETH generated by the protocol and paid to validators for correctly participating in proof-of-stake consensus — attesting to blocks and (rarely) proposing blocks.

How it works:

  • Validators earn attestation rewards for correctly signing off on the chain’s head
  • Block proposers earn a small additional reward for building blocks
  • Sync committee members earn elevated rewards during their brief committee windows

Size: Consensus rewards make up roughly 60–75% of total staking yield in normal conditions. The issuance rate adjusts based on total ETH staked — as more ETH is staked, the per-validator issuance falls (the curve is inverse square root shaped).

Current range: Roughly 3.0–3.5% APR with ~30M ETH staked (as of 2024).

Risk profile: Low volatility. Predictable, protocol-mandated rate that changes only with network upgrades or large changes in total staked ETH.

Component 2: Execution Layer Rewards (Priority Fees)

What it is: “Tips” (EIP-1559 priority fees) paid by Ethereum users to have their transactions included preferentially in a block. Collected by block proposers.

How it works:

  • EIP-1559 (August 2021) split gas into base fee (burned) + priority fee (goes to block proposer)
  • Users set a maxPriorityFeePerGas tip to incentivize validators to include their transaction
  • During high-activity periods (NFT mints, token launches, DeFi peaks), tips spike dramatically

Size: 25–40% of total staking yield during normal conditions. During high-activity periods (early 2024 memecoin mania on Ethereum, Blast launch), priority fee windfalls for proposers temporarily doubled or tripled total yield.

Risk profile: Moderate volatility. Strongly correlated with Ethereum transaction volume and user activity. Nearly zero during low-activity bear markets; elevated during bull market peaks.

Component 3: MEV (Maximal Extractable Value)

What it is: Additional profit extracted by block builders (and shared with proposers via MEV-boost) from transaction ordering, front-running, backrunning, arbitrage, and liquidations within a block.

How it works (post-Merge PBS model):

  • Block builders (Titan, rsync, flashbots) construct blocks optimized for MEV extraction
  • Proposers (validators) receive an offer from builders via MEV-boost: “I’ll give you X ETH if you use my block template”
  • Proposers accept the highest offer; the builder keeps their MEV minus the payment to the proposer
  • MEV flows to proposers as a lump-sum “builder payment” rather than through the standard reward mechanism

Size: Variable. During low-activity periods: minimal (fraction of a percent APR). During “MEV events” (large liquidation cascades, new token launches, sandwich-heavy periods): single blocks can earn hundreds of ETH, randomly distributed across proposers. Annual average contribution: ~0.5–1.5% APR.

Risk profile: High variance. LST holders benefit from MEV being averaged across all validators in the pool (solo stakers get MEV only when they happen to be the proposer). The smoothing effect of large LST pools is one argument for LSTs over solo staking for volatility-averse stakers.

How LST Protocols Handle These Rewards

Lido (stETH)

  • Consensus + execution + MEV rewards collected by Lido’s validators
  • After 10% protocol fee (split: 5% to node operators, 5% to Lido DAO treasury)
  • Remaining 90% rebases daily into each stETH holder’s balance (token amount increases)
  • stETH yield broadly tracks the network staking rate minus 10% cut

Rocket Pool (rETH)

  • Consensus + execution + MEV collected by decentralized node operators
  • Node operators take their cut; remainder flows to rETH exchange rate appreciation
  • rETH does not rebase — token price rises vs ETH instead
  • Also accrues RPL rewards (which are additional emissions, not from base yield)

Coinbase (cbETH)

  • Centralized operation; Coinbase takes 25% fee
  • cbETH exchange rate appreciates vs ETH over time

Post-Merge Yield Composition (approximate 2024 baseline)

Source Share of Total Yield Typical APR Contribution
Consensus (issuance) ~65% ~2.0–2.2%
Execution (priority fees) ~25% ~0.8–1.0%
MEV ~10% ~0.3–0.5%
Total (pre-fee) 100% ~3.5–4.0%

Lido post-fee: ~3.1–3.6%

Rocket Pool post-fee: ~3.4–3.8% (less operator fee than Lido)

Related Terms

Sources

Last updated: 2026-04