Catie Di Stefano
Editor-in-Chief, PredictionWins
Bio
Catie has spent 15 years covering iGaming, sports betting, and now prediction markets — first as a trade reporter, later as head of editorial at two major industry publications. She has tested every regulated US event exchange since Kalshi's 2021 launch and writes the bulk of PredictionWins' platform reviews and tax explainers.
Guides
- What Are Prediction Markets? A Complete Beginner's Guide
Prediction markets let you trade on the outcome of real-world events. Here's how they work, why they're surprisingly accurate, and how to start.
- How to Read Prediction Market Odds
Contract prices, implied probability, expected value, and how to spot when the market is wrong.
- Kalshi vs Polymarket: Which Platform Should You Use?
Head-to-head on regulation, fees, liquidity, and usability. Which one wins depends on where you live.
- How to Actually Make Money on Prediction Markets
Edge, bankroll, process. The unglamorous habits that separate winning traders from gamblers.
- Prediction Markets and Taxes (US)
How Kalshi and Polymarket winnings are taxed, what forms to expect, and how to keep records the IRS will accept.
Recent news
- Politics · Apr 10 · 3:06 AMPolymarket: Democratic Presidential Nominee 2028
- Politics · Apr 10 · 1:06 AMPolymarket: Republican Presidential Nominee 2028
- Industry · Apr 9Kalshi Breaks $2B Monthly Volume Record in March 2026
- Industry · Apr 6Rebet Crosses 1M Users as Social Prediction Trading Goes Mainstream