You're not betting — you're pricing
The single biggest shift from a casual gambler to a profitable trader is this: your job isn't to predict outcomes, it's to price probabilities better than the market does. A 60¢ YES contract on a coin flip is a great sell, even if it resolves YES half the time.
Every position starts with two numbers: your probability and the market price. If the gap is under 4¢, skip it — the spread will eat the edge.
Pick two categories. Ignore the rest.
You can't out-research the market on everything. Winners pick 2–3 lanes and go deep. Common picks:
- Geopolitics. Elections, sanctions, ceasefires, leadership changes. Reads primary sources; ignores cable news.
- Crypto. ETF flows, on-chain data, exchange listings. Live 24/7, so information decays fast.
- Fed / macro. Rate decisions, CPI surprises, Powell language. A calendar-driven category — easy to prep for.
- Sports niches. Not the main lines (sharps have crushed those) but obscure props on smaller leagues.
Trading on world events without getting run over
Three rules for news-driven trades:
- Read the source, not the headline. By the time Bloomberg pushes a notification, the price has already moved 5¢.
- Trade the reaction, not the event. Markets routinely overshoot on breaking news; the fade is often the better trade.
- Know your invalidation. Before you click buy, write down the exact fact that would make you sell. If you can't name it, you don't have a thesis.
Small wins, repeated, beat home runs
At 1.5% risk per trade and a 55% win rate, you net roughly 0.6% of equity per idea. Do that 35 times and you're up 20%. That's the whole game.
The trader who doubles their stake to "get there faster" doubles their drawdown — and drawdowns compound geometrically. See the sizing math in the Prediction Market Strategy Guide.