Editorial policy

Last updated November 10, 2026.

Who publishes this site

Prediction Market Handbook is published by Prediction Market Handbook, a small independent editorial team. Articles carry the desk's name instead of individual bylines. We are not affiliated with, paid by, or partnered with any prediction market, exchange, or sportsbook, and we do not use affiliate links.

How the market data pages work

Pages that show odds, price charts, movers, or resolutions are generated from public data published by Polymarket and Kalshi. Each page shows when its data was fetched. A price on a prediction market is the last traded or midpoint price of a contract that pays $1 if an event happens, so a 62 cent price is read as a 62% implied chance. Prices move, can be thin, and can be wrong. Where we compute something (a change, an average, an accuracy rate) the method is described on the page.

How articles are written

We use AI tools to help research and draft. Every published article follows the same rules:

1. Every factual claim comes from a source we opened and read. Sources are linked inline and listed at the end of the article.
2. Dates are explicit. Odds and volumes carry a venue and an as-of date.
3. We do not invent quotes, people, or scenes. Quotes are attributed to where they were printed.
4. Where sources disagree, we say so and give both versions.
5. A human editor reviews each draft for accuracy and sourcing before it is published.

Not financial or legal advice

We explain how prediction markets work and what they are pricing. We never tell readers to buy, sell, or bet. Prediction markets are restricted or illegal in some places; check the law where you live.

Corrections

If we get something wrong, we fix it and note the change and its date at the end of the article. Send corrections to desk@predictionmarket.fit with a link to the page and to the source that shows the error.