GAMBITY

Polymarket vs Manifold Markets

Attribute Polymarket Manifold Markets
Founded 2020 2021
HQ New York, USA San Francisco, California, USA
Type Decentralized Prediction Market Social Play-Money & Sweepstakes Prediction Market
Regulated ❌ No ❌ No
Valuation $20B+ (2026)
Status Active Active
Prestige 82% 74%
Polymarket

Shayne Coplan was twenty-one years old, a New York University computer science dropout, working alone in a Lower East Side apartment — and then a converted bathroom, for privacy — when he launched Polymarket in June 2020. The idea was straightforward and, at the time, largely ignored: force people to put money behind their predictions, and the resulting prices would tell you more than any poll. The original markets were modest — COVID-19 recovery timelines, the 2020 election — but the founding insight was correct. By the time Joe Biden was called, Polymarket had already been pricing his victory for weeks.

The CFTC settlement in January 2022 was the first near-death experience. Polymarket paid $1.4 million, blocked U.S. users, and moved its international operations through Adventure One Ltd in Panama. What followed was counterintuitive: the platform grew faster outside the United States than it ever had inside. The 2024 presidential election was its breakout moment. Over $3.6 billion was wagered on the single question of who would win the White House. When Polymarket's odds showed Trump at 70% while major polls called it a coin flip, Elon Musk amplified the discrepancy to his 200 million followers. The FBI raid on Coplan's Manhattan apartment in November 2024 — framed by Polymarket as "obvious political retribution" — became, perversely, the best free advertising the platform had ever received.

Full profile: Polymarket →
Manifold Markets

Manifold Markets was founded in December 2021 by former software engineers Austin Chen, James Grugett, and Stephen Grugett in San Francisco to democratize market creation and rapid crowd forecasting. Operating as a social prediction platform, Manifold allows any user to instantly deploy custom play-money prediction markets on arbitrary binary, multiple-choice, or numeric questions spanning technology, culture, geopolitics, and personal life.

The platform utilizes a proprietary play-money currency called "Mana" (Ṁ) combined with Automated Market Maker (AMM) liquidity pools to support real-time continuous trading. By granting question creators primary resolution authority and offering open, high-throughput developer APIs, Manifold built one of the world's most vibrant crowdsourced forecasting communities and hosts the annual Manifest forecasting conference.

Full profile: Manifold Markets →