Bankroll management basics for prediction markets

Most traders lose not because their analysis is bad, but because their position sizing is. You can be right more often than the market and still go broke if you stake too much on any single outcome. Bankroll management is the set of rules that prevents that — and it matters more than any individual pick. Start by defining your bankroll: the total amount of money you have set aside for this activity and can genuinely afford to lose. Everything else is expressed as a fraction of that number, not as a raw dollar amount. Thinking in fractions keeps your risk proportional as your bankroll grows or shrinks. The next principle is to risk only a small fraction of your bankroll on any one position. Because even good bets lose regularly to variance, a losing streak is not a question of if but when. Small, consistent sizing means a streak of losses is a setback you recover from, not an event that wipes you out. Many disciplined traders keep each position to a low single-digit percentage of their bankroll. The size of an edge should influence the size of a bet, but gently. The Kelly criterion is a well-known formula that ties optimal stake to your edge and the odds; in practice, most people use a fraction of what Kelly suggests, because Kelly assumes your probability estimates are exactly right — and they rarely are. Betting a fraction of Kelly gives up a little theoretical growth in exchange for a lot more protection against your own estimation errors. Odds Coach supports these habits directly. Its recommended stake is a bankroll-aware suggestion rather than an instruction, and its risk notes and confidence levels help you decide when to lean in and when to stay small. But the rules only work if you actually follow them: decide your sizing before you are emotionally invested in a market, and stick to it when a streak tests your nerve.