Guides
Prediction market fees: calculate the real cost
Calculate prediction market entry cost, fees, payout and profit. A worked example explains maximum loss and why an apparent return can be misleading.
Guides
Plain-English guides for New Yorkers: how prediction market contracts work, what they cost, and the checks to make before you trade.
Guides
Polymarket US vs international: what New Yorkers should know
Distinguish Polymarket US from the international platform. Check the legal entity, account access and matching rules before following a guide.
Guides
Who regulates event contracts: the CFTC and New York
The CFTC registers the exchanges and clearing houses behind Kalshi, Polymarket US, OG and ProphetX. New York claims a role too. Here is who does what.
Guides
Kalshi vs Polymarket US: how the two exchanges differ
Compare Kalshi and Polymarket US for New York. Understand exchange identity, access disputes, fees and the checks to make before funding.
Guides
How to read a prediction market contract
Learn how event definitions, deadlines, settlement sources and exception rules determine a prediction market contract’s result before you place a trade.
Guides
Understand the market. Before the first trade.
Learn how prediction market contracts work. Check New York access, written rules, total costs and trading risks before opening an account or funding it.