Everyone has opinions about what will happen next, whether in politics, sports, tech, or the economy. Prediction markets take those opinions and convert them into prices that reflect what participants actually believe, backed by real money.

From opinion to price

An event contract starts with a question that has a clear, verifiable outcome. "Will Company X report earnings above $2.00 per share?" or "Will Team Y win the championship?" The contract trades between $0 and $1, and its price at any given moment reflects the market's aggregate view of the probability.

When someone buys a contract at $0.55, they're saying "I believe there's more than a 55% chance this happens." When someone sells at $0.55, they're saying "I believe there's less than a 55% chance." Every trade is a disagreement between two participants, and the resulting price captures the balance of those disagreements across the entire market.

Why prices move

Prediction market prices move the same way stock prices move: new information changes the balance between buyers and sellers. If a key player gets injured before a game, contracts on that team's chances drop as sellers rush in. If a strong jobs report lands before a Fed meeting, contracts on a rate hold might rise as the data supports the case for no cut.

The speed at which prices adjust to new information is one of the most powerful features of prediction markets. Within minutes of a major news event, thousands of participants reprice their positions, and the contract reflects the updated consensus.

The wisdom of crowds

Prediction markets work because of a well-documented principle: large groups of people with diverse information, each acting independently with something at stake, tend to produce better estimates than any single expert.

No individual trader needs to be right for the market price to be accurate. Some participants have deep subject matter expertise. Others have access to data or models. Some are just guessing. The market aggregates all of these inputs, weighted by how much capital each participant is willing to commit, and produces a single number that represents the collective best estimate.

This doesn't mean prediction markets are always right as they reflect probabilities, not certainties. A contract priced at $0.80 still implies a 20% chance the event doesn't happen. But as a real-time gauge of what informed participants actually expect, prediction market prices are consistently among the most reliable signals available.

How this differs from traditional forecasting

Polls ask people what they think with no cost to being wrong. Expert panels rely on a small number of opinions that may carry personal or institutional bias. Prediction markets ask people to put money on the line, which filters out casual speculation and surfaces genuine conviction. The result is a continuously updating probability estimate, which is far more responsive than a forecast published once and left to go stale.