Ais Fang
Independent researcher in prediction markets and perpetual futures on Polymarket. Previously at Jane Street (2019-2021) and Two Sigma (2021-2023). Columbia University, Applied Mathematics.
Research Focus
- Perps mechanics: funding rate math, margin modes, liquidation triggers
- Formulas from official docs: IM/MM, withdrawal floor, ADL index
- pUSD collateral: migration mechanics, Offramp/Onramp contracts
Key Findings (October 2026)
As of October 2026, Polymarket Perps operates with the following verified parameters:
- Launched April 21, 2026; scaled to 20x leverage and 67 markets on September 3, 2026
- Market breakdown: 36 equities / 24 crypto / 3 indices / 4 commodities
- MMR formula: 0.5 / MaxLeverage (2.5% on 20x markets)
- Funding sampling: every 5 seconds, 1,000 quote impact notional
- Funding cap: 4% per hour
- Withdrawal floor: max(CollateralReserved, 0.1 × TotalPositionValue)
Profiles
- GitHub: github.com/polymarktexpert
- Substack: polymarkexpert.substack.com
- Medium: medium.com/@ais0931583726
- Dev.to: dev.to/polymrktexpert
- Hugging Face: polymarktexpertaisfang-perps-calculator
Disclaimer
Not affiliated with Polymarket. Not financial advice. Educational purposes only.