Polymarket Hires Former Zora CEO to Overhaul DeFi Product Strategy

New leadership for onchain growth

Polymarket has appointed Jacob Horne, the former CEO of Zora, to lead its DeFi product strategy. The hiring move aims to address concerns that the prediction market platform has underperformed in its onchain efforts while expanding its U.S. operations.

CEO Shayne Coplan acknowledged that the performance of Polymarket’s decentralized finance (DeFi) products has "waned" during the company's growth phase. Coplan noted that some long-time users felt the company had shifted its focus away from its original onchain roots, but he did not specify a launch date for new features or changes to fees and liquidity.

Coplan said the company is working to unify its various product lines. He invited users to send feedback directly to Horne or himself in the meantime. Polymarket plans to hold a DeFi town hall soon to gather more feedback and outline its future strategy.

Key facts about the hire and the rebuild

• New Role: Jacob Horne joins with a broad product mandate rather than a specific engineering title, focusing on the DeFi offering.
• Infrastructure Issues: The company’s Vice President of DeFi Engineering, Josh Stevens, previously identified significant technical debt in the Central Limit Order Book (CLOB), the system that matches user orders.
• Rebuild in Rust: The matching engine is being rewritten from scratch in the Rust programming language to fix foundational flaws.
• Performance Goals: Early benchmarks for the new system suggest it will be 10 to 20 times faster and capable of handling 200,000 orders per second, which is about 15 times the current capacity.

What the engineers reported on the codebase

According to The Defiant, Stevens stated in late August that the existing CLOB could not be saved long-term due to its flawed foundations. While the team had managed to scale the system and make it three times faster, fixing one issue often caused another.

Stevens explained that the new matching engine, written in Rust, targets a launch in the mid-to-late fourth quarter of 2026. The old system will remain in operation and continue to be maintained while the new one is built alongside it. The company aims to keep breaking changes for integrators to a minimum.

Polymarket’s documentation describes the CLOB as connecting signed orders with settlement on the Polygon blockchain. Users sign and submit orders to this central system, which then matches them. Once matched, the trades settle on the blockchain. This central structure, rather than a fully decentralized model, has been the source of the technical challenges.

What is confirmed and what remains open

It is confirmed that Horne has joined Polymarket and that a major engineering effort to rewrite the matching engine in Rust is already underway. It is also confirmed that the company will hold a town hall to discuss its DeFi roadmap.

However, there are still unclear areas. Coplan has not committed to changing the current fee structure, where makers pay no fees and takers pay category-based fees. There is also no confirmed new liquidity program or specific timeline for when product unification will be complete. The new Rust-based system had not yet launched at the time of the engineering report.

Why this matters for users

This move is significant because it places a senior product leader in charge of a platform known for its prediction markets. By addressing the technical debt in the order matching system, Polymarket aims to improve speed and capacity, which is critical for a market where large trading volumes can occur during high-stakes events.

The shift from a "central limit order book" to a more robust onchain infrastructure is an attempt to satisfy users who prefer decentralized systems. While the central system allows for faster matching in some cases, it relies on an operator, which has raised concerns about decentralization. The hire of Horne signals a renewed focus on aligning the product with its decentralized origins.

Sources

• The Defiant