Every question is a contract that pays $1 if the answer is YES, $0 if NO. The live price — 1¢ to 99¢ — is the probability the market implies right now. When new information hits, the price moves. You can buy or sell either side at any time before it settles.
Politics, rates, crypto, sports, culture — resolves to a public fact.
Priced 1¢–99¢. Sell any time before expiry.
Each winning contract settles at $1.