PREDICTWIRE · LIVEGavin Newsom win the 2028 Democratic presidential nomination: 28% ▲ 0.4Atletico Madrid win the 2025–26 Champions League: 12% ▼ 0.2the San Antonio Spurs win the 2026 NBA Finals: 15% ▲ 0.1Iran x Israel/US conflict ends by April 7: 87% ▲ 0.8Gavin Newsom win the 2028 US Presidential Election: 17%Netherlands win the 2026 FIFA World Cup: 3% ▼ 0.1the Colorado Avalanche win the 2026 NHL Stanley Cup: 23% ▲ 1.1J.D. Vance win the 2028 Republican presidential nomination: 39% ▲ 0.8the U.S. invade Iran before 2027: 30% ▼ 2.0PREDICTWIRE · LIVEGavin Newsom win the 2028 Democratic presidential nomination: 28% ▲ 0.4Atletico Madrid win the 2025–26 Champions League: 12% ▼ 0.2the San Antonio Spurs win the 2026 NBA Finals: 15% ▲ 0.1Iran x Israel/US conflict ends by April 7: 87% ▲ 0.8Gavin Newsom win the 2028 US Presidential Election: 17%Netherlands win the 2026 FIFA World Cup: 3% ▼ 0.1the Colorado Avalanche win the 2026 NHL Stanley Cup: 23% ▲ 1.1J.D. Vance win the 2028 Republican presidential nomination: 39% ▲ 0.8the U.S. invade Iran before 2027: 30% ▼ 2.0

Beginner guide

How to Use Prediction Markets: A 2026 Beginner’s Guide

Prediction markets let you trade contracts on real-world events. Here is exactly how to open an account, fund it, place a first trade, and avoid the most common rookie mistakes.

What is a prediction market

A prediction market is an exchange where you trade contracts that pay out if a specific real-world event happens. The simplest version is a binary contract: $1 if the event happens, $0 if it does not. Prices between $0 and $1 reflect the market’s collective probability estimate.

If the market thinks there is a 60 percent chance a candidate wins an election, that candidate’s yes contract trades around $0.60. Buy at $0.60 and the market is right: you make $0.40 if the candidate wins and lose $0.60 if not. Sell at $0.60 (taking the no side) and the math reverses.

Picking a platform

For US residents the choice is straightforward. Kalshi is the only fully CFTC-regulated US exchange. PredictIt operates under an academic exemption with strict $850 position caps. Manifold Markets is play money only.

For international users the menu is wider. Polymarket has the deepest global liquidity. Smarkets covers European sports markets at low commissions. Multiple smaller specialized markets exist for science, climate, and crypto.

#1 pick

Kalshi

★★★★★

Recommended starting point for US residents. Bank funding, regulated, easy to use.

Read review

#2 pick

Polymarket

★★★★★

Recommended starting point for international users. USDC funding, deepest global menu.

Read review

Opening an account

Kalshi. Sign up with email, complete KYC (US residents need a Social Security number, ID, and address verification), agree to the user agreement, and you are ready to fund. The whole process usually takes under 10 minutes if your documents are ready.

Polymarket. Connect a self-custody crypto wallet (MetaMask is most common) on the Polygon network. There is no traditional KYC. You will need to bridge funds to Polygon if your USDC lives on Ethereum or another chain.

Funding the account

Kalshi. Link a US bank via Plaid or push an ACH transfer. Debit card deposits are also supported and credit faster. Minimum deposit is $10. Funds typically clear within a business day.

Polymarket. Send USDC on Polygon to your connected wallet. Polygon transaction fees are pennies. The minimum trade size is effectively $1 plus gas.

Your first trade

Pick a market with a question you have a real opinion on. Read the resolution criteria carefully (this is the single most overlooked step). Decide whether the current market price under-prices or over-prices what you think the true probability is.

If you think yes is undervalued, buy yes contracts. If you think no is undervalued, sell yes (or buy no, the same trade). Start small. A $5 to $20 trade gives you the full feedback loop without risking real capital while you learn.

Rules of thumb

  • Read the resolution criteria. Markets resolve on exact wording, not your interpretation.
  • Watch liquidity. A 5 cent spread on a thin market is a worse deal than a 1 cent spread on a deep one. Volume matters.
  • Do not chase momentum. Markets that have moved hard in one direction often retrace. Buying late into a move is the most common rookie loss.
  • Track your record. A spreadsheet of every trade with thesis, entry, exit, and outcome will teach you more than any video.
  • Bankroll discipline. Never put more than a few percent of your capital on a single contract. Streaks happen in both directions.

Frequently asked questions

Do I need a lot of money to start?

No. Kalshi has a $10 minimum deposit. Polymarket effectively has a $1 minimum. Most successful traders start with under $100 to learn the mechanics before scaling up.

How are prediction markets different from sports betting?

Prediction markets are peer to peer with continuous secondary markets. You trade against other users at prices set by the order book. Sports betting is against the house at odds the house sets. The math, fee structure, and regulatory framework all differ.

Can I lose more than I deposit?

No. Maximum loss on any contract is the price you paid. There are no margin calls and no synthetic leverage on standard prediction market contracts.

How long do markets take to resolve?

Anywhere from minutes to years. Same-day news markets resolve within hours. Election contracts resolve on certified results. Long-tail forecasts can run for years before resolution.

What is the most common beginner mistake?

Skipping the resolution criteria. Markets settle on exact stated rules, not on what feels intuitive. Read the criteria once before entering and once again before resolution.

PredictWire may earn a commission when you sign up for a platform through links on this page. Ratings and rankings are independently determined and not influenced by compensation. Prediction markets carry financial risk; only trade with funds you can afford to lose.