Ethereum block builder Titan Builder controlled 52.4% of MEV-Boost blocks in October 2026, while Titan and Quasar combined for 73%. The concentration raises concerns about relay dependence, censorship resistance and Ethereum’s planned ePBS upgrade.
Summary
- Ethereum Block Builder Titan Builder temporarily outshined Tether in terms of revenue for a day, emphasizing the increasing economic significance of block construction within the Ethereum network.
- Titan and Quasar made up 73% of MEV-Boost blocks in October 2026, based on data from stake.fish, rekindling concerns regarding competition, censorship-resistance, and protocol changes.
- It can be seen that two providers are now controlling almost 73% of the outsourced blocks, compared to about 60% last year.
- Source: AlphaWire’s X Post While the report states that Titan generates $22.83 million, TokenPost on its part estimated that fees for 24 hours on October 30 were worth $24.7 million.
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