Overview
- Kalshi reported about $4.39–$4.4 billion in October notional volume, marking a monthly record and its first time surpassing Polymarket.
- Polymarket logged roughly $3.02 billion in trades and more than 477,000 active traders, setting platform records for users and market creation.
- Polymarket activity jumped after it announced a POLY token with an airdrop and said it is targeting a U.S. relaunch before the end of November.
- Access models are diverging, with Kalshi integrated into Robinhood and not requiring crypto, while Polymarket continues to operate on-chain.
- Investor interest is building, with reports of a potential $15 billion Polymarket fundraising and Bloomberg noting VC interest valuing Kalshi above $10 billion, even as both platforms saw October outages and face gambling-related regulatory scrutiny.