What is Polymarket?
Polymarket is a federally-regulated (us iphone app) that lets users take positions on the outcomes of real-world events — sports, politics, economics, and culture. Founded in 2020, it operates under U.S. federal commodities law, which makes it available to traders in every US state.
What sets Polymarket apart is its positioning: the world's largest prediction market — now live on iphone in the us.. That's not marketing copy — it's reflected in the product, the markets offered, and the kind of trader who sticks around.
Is Polymarket legal in the US?
Yes. Polymarket operates as a federally-regulated venue, which means it falls under federal commodities law rather than state gambling law. Many US states' lack of legal online sportsbooks doesn't apply here — event contracts are a different financial instrument with different regulators.
That said, the legal picture is still being contested. Some state attorneys general have challenged certain platforms; the CFTC has consistently defended its jurisdiction. For the full backdrop, see our US legality guide.
What can you trade on Polymarket?
Polymarket covers World Cup, Sports, Politics, Culture. New markets are added weekly.
Practically, that means contracts on game outcomes, championship futures, player and team milestones, election results, Fed decisions, inflation prints, award shows, and cultural events.
How does Polymarket work?
Every contract on Polymarket resolves to either $1 (yes) or $0 (no). The price you pay reflects the market's implied probability — a contract at 62¢ means a 62% chance.
You don't have to hold to resolution. You can sell at any time — if the price moves to 78¢, you can lock in the gain. This is the single biggest mental shift from sportsbook betting: you're trading a price, not placing a wager. For the full mechanic, read how event contracts work.
How much does Polymarket charge?
Polymarket charges fees on a per-contract basis, typically a small fraction of a cent per contract or a low percentage of the trade. Compared to a sportsbook's 5-10% built-in vig, the fee structure is dramatically more transparent.
Liquidity varies by market — high-profile events like presidential elections or playoff series are deep, while niche markets can be thin. Always check the bid-ask spread before taking a position.
Is Polymarket safe?
Yes. Polymarket is regulated by the CFTC, segregates customer funds, and is required to meet federal compliance and reporting standards.
That regulatory backstop is the single biggest reason US traders choose federally-regulated venues over offshore sportsbooks, which operate outside U.S. consumer protection.
Who should use Polymarket?
Polymarket is best for world cup futures and golden boot, iphone-first traders, and tightest spreads on big markets.
If that profile fits you, Polymarket earns its 4.7/5 rating and belongs in your account rotation.
Who should not use Polymarket?
How does Polymarket compare to Kalshi?
Polymarket and Kalshi are both federally-regulated event-contract venues, but they target different traders. See our full Polymarket vs Kalshi comparison.
In short: Polymarket excels at world cup futures and golden boot, while Kalshi is typically the default for broader U.S. coverage and brand recognition.
How do I sign up for Polymarket?
Visit Polymarket, complete identity verification (KYC), fund your account from a U.S. bank, and start trading. The full process typically takes under 10 minutes.
You must be at least 21 years old. Read terms before funding your account.
Responsible trading tools
Polymarket provides deposit limits, self-exclusion options, and links to support resources. If trading stops being fun, take a break. Call 1-800-GAMBLER or visit ncpgambling.org.
Our verdict
Best overall for World Cup futures and per-match contracts. Polymarket earns 4.7 out of 5 in our rankings — a strong choice if you fit the profile.