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When Staking Rewards Compound: Measuring the Impact of Ethereum's Pectra Upgrade

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  • Mohammed Benseddik
  • Benjamin Kraner
  • Claudio J. Tessone

Abstract

Ethereum's beacon chain hosts over 920,000 active validators, a number inflated by the legacy 32 ETH stake cap. The Pectra upgrade (May 2025) addresses this by introducing 0x02 compounding validators, raising the maximum stake per validator from 32 to 2,048 ETH and enabling automatic reward reinvestment. This paper examines how compounding affects consensus-layer rewards, whether higher balances provide execution-layer advantages, and whether the APR uplift justifies migration for different staker types. We analyse adoption patterns across solo stakers and staking providers, investigate the role of consolidation (merging multiple 32 ETH validators into one) in early migration, and identify barriers slowing the transition. Through simulation, we find that compounding provides roughly +5% relative consensus-layer APR uplift for small balances, diminishing to under 1% for large staking providers. Empirical analysis of all active beacon chain validators shows 0x02 validators achieving modestly higher median CL APR. Solo stakers show higher relative adoption but face operational barriers, whilst providers cite infrastructure costs and protocol constraints. The results suggest that without improved reward accessibility and stronger economic incentives, 0x02 migration will remain gradual despite its network efficiency benefits.

Suggested Citation

  • Mohammed Benseddik & Benjamin Kraner & Claudio J. Tessone, 2026. "When Staking Rewards Compound: Measuring the Impact of Ethereum's Pectra Upgrade," Papers 2606.23337, arXiv.org.
    • Handle: RePEc:arx:papers:2606.23337
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