Culper Shorts Ethereum, Says Buterin Selling Signals More Pain Ahead

Culper Research has disclosed a short position on Ethereum, citing deteriorating tokenomics following the December 2025 Fusaka upgrade that caused gas fees to drop 90% instead of the expected 10-30%. The firm argues that Vitalik Buterin's recent ETH sales signal awareness of these broken economics, while much of Ethereum's post-upgrade activity growth stems from address poisoning rather than genuine utility.