Culper Research has put Ethereum back in the crosshairs with a detailed, sharply negative report — and backed its analysis with real money.
What Culper is saying
- The investment research firm says it has taken a short position on ETH after concluding that structural changes following the so-called Fusaka Upgrade have dramatically expanded blockspace and driven transaction fees down by roughly 90%.
- Culper links the fee collapse to weaker staking economics: lower fees mean lower validator income and, in their view, a materially degraded long-term narrative for ETH as a fee-bearing, security-funded network.
- Using on-chain data from January 2025 through February 2026, the report singles out a surge in new wallets and transactions that Culper calls largely artificial. It claims as much as 95% of new wallet creation in the period is tied to “dusting” or address‑poisoning attacks, and that dusting-related activity now accounts for about 22.5% of all ETH transactions and more than half of recent transaction growth.
- The firm argues these spammy dynamics inflate headline metrics (active addresses, transaction growth) while offering little genuine user adoption. Culper also references BitMine as part of its analysis of network activity.
- Culper bluntly frames these trends as possible precursors to a “death spiral” for ETH economics and has placed short bets accordingly.
Data points and market moves
- The report’s timespan: January 2025–February 2026.
- Fee impact: Culper estimates ~90% decline in transaction fees and a 40–50% drop in tips per gas following the blockspace increase.
- Personal holdings noted: Culper flagged a sale of ~19,000 ETH by Vitalik Buterin (reported as roughly 8% of his holdings), but the firm and outside observers stress that a one-time sale is not definitive proof of a loss of faith.
Reactions from the crypto community
- Nic (CEO of Coinbureau) reposted the report on X and emphasized a key counterpoint: Ethereum’s protocol design allows for coordinated rule changes via upgrades or forks to address economic issues. That’s politically and technically difficult, but possible. He framed his comments as observational rather than taking a side, noting that a public, money-backed short thesis is worth studying closely.
- Crypto commentator MartyParty and others have also weighed in, amplifying the debate and drawing more attention to Culper’s claims.
- The mention of Buterin’s ETH sale drew backlash from parts of the ETH community, while others urged caution in interpreting single moves by prominent holders.
Wider context and implications
- Culper also highlights competitive pressure from Solana and other chains that have attracted developer and user activity, arguing that Ethereum’s challenges are not only internal but also market-driven.
- If Culper is correct, validators and stakers could face sustained revenue pressure, which would have downstream effects on network security incentives and staking propositions.
- If Culper is incorrect, the spike in wallet counts and transactions — even if partially artificial — may not translate into an existential problem for Ethereum.
Bottom line
Culper Research’s report is a comprehensive bearish thesis backed by a short position and a trove of on-chain analysis. Its claims about post‑Fusaka fee collapse, spam-driven wallet growth, and weakening validator economics have reignited a divisive debate over Ethereum’s health — and whether the protocol can, or will, adapt through further upgrades. For traders and holders, the report raises clear watch points: fee levels, validator/staker income, on-chain quality of activity (not just quantity), and any governance momentum toward economic rule changes.
Read more AI-generated news on: undefined/news
