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Prediction Markets101

Guides

Every prediction market topic, explained

Browse cornerstones by category. Tier 1 articles are our flagship explainers, 2,000+ words each. Tier 2 dives deeper into specific topics.

Cornerstone articles

legality

Can US citizens use Polymarket? The real answer

US citizens cannot legally use Polymarket from the US. Citizenship doesn't matter — it's the IP address and KYC location that Polymarket blocks. Here's the full picture, plus what expat US citizens can do.

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How does Kalshi work? The complete walkthrough

Inside Kalshi: the CFTC-regulated DCM architecture, contract structure, resolution process, fees, and how a trade flows from click to settlement.

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How does Polymarket work? A technical walkthrough

The full stack behind Polymarket: the order book, the smart contracts, the oracle, USDC settlement, and what happens from your click to final payout.

guides

How to connect MetaMask to Polymarket: self-custody trading guide

Connect MetaMask to Polymarket in under 5 minutes. Adds Polygon network, funds with MATIC and USDC, and signs trades with full self-custody. Recommended for serious traders.

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How to deposit on Polymarket: every funding path explained

Four ways to fund Polymarket with USDC: in-app MoonPay onramp, Coinbase withdrawal, cross-chain bridge from Ethereum, or direct wallet transfer. Here's the full mechanics, fees, and timing of each.

strategy

How to make money on Polymarket: realistic expectations and real tactics

Most retail bettors lose money on prediction markets. The ones who profit have information edge, disciplined sizing, and patience. Here are the tactics that actually work — and the delusions to avoid.

guides

How to sign up for Kalshi: the complete US signup guide

Sign up for Kalshi in 10 minutes. Full walkthrough: account creation, KYC, bank linking, first deposit, first trade. Kalshi is CFTC-regulated and legal in all 50 US states.

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How to sign up for Polymarket: the complete step-by-step guide

Create a Polymarket account in under 10 minutes. Full walkthrough covering email signup, wallet setup, USDC funding, and your first trade.

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How to use Polymarket in the US: the factual guide

Polymarket geoblocks US IPs. Here is how US users access the platform: VPN + crypto deposits, no KYC at signup. Plus the regulatory and tax facts you should know.

strategy

How to win on Polymarket: a strategic guide

Winning on Polymarket requires information edge, position discipline, and execution skill. Here's the strategic framework — from finding mispriced markets to sizing positions with the Kelly criterion.

legality

Is Kalshi legal? The complete regulatory picture

Yes. Kalshi is a CFTC-regulated Designated Contract Market, legal in all 50 US states. Federal authority preempts state gambling law. Here's the full regulatory history and status.

safety

Is Kalshi safe? A regulated-exchange review

Kalshi is a CFTC-regulated Designated Contract Market with segregated FDIC-insured customer funds. Here's a complete review of platform safety, custody protections, and what could go wrong.

safety

Is Polymarket a scam? An honest assessment

Polymarket is not a scam. It's a functioning prediction market with $5B+ in cumulative volume, audited smart contracts, and legitimate business behind it. But it has genuine risks — here's the honest rundown.

legality

Is Polymarket legal in the United States? (2026 CFTC status)

Polymarket is not legally accessible to US residents. Here's the CFTC settlement history, the December 2024 FBI raid, current enforcement posture, and what US users should do instead.

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Is Polymarket legal? Global legality explained (2026 update)

Polymarket's legality varies widely by country. It's blocked in the US, grey-zone in much of the EU, broadly accessible across Latin America, Asia, and Africa. Here's the full landscape.

safety

Is Polymarket safe? A complete security review

Polymarket is safer than the average crypto exchange on custody and clearer than most offshore gambling sites on solvency. Here's a full review of the smart contract, oracle, banking, and operational risks.

signup

Kalshi referral code: signup bonuses and how the program works

Kalshi's referral program pays affiliates a share of fees from referred users. New-user bonuses are occasional and time-limited. Here's how to sign up, what bonuses might be available, and our legitimate referral link.

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Polymarket fees explained: the complete cost breakdown

Polymarket fees in 2026: a per-trade fee schedule (added late 2025), plus spread, Polygon gas, and onramp/offramp costs. Here's every fee you'll encounter with real-world examples.

signup

Polymarket invite code: how to get one and what you get

Polymarket doesn't require invite codes for signup — anyone in an eligible jurisdiction can create an account directly. Here's what 'invite code' actually means, what referral codes do, and whether there's a bonus.

signup

Polymarket referral code: how the program works (2026)

Polymarket's referral program pays partners 30% of trading fees from referred users for 180 days. Here's how it works, how to use a referral link, and why Polymarket doesn't have a traditional signup bonus.

comparisons

Polymarket vs Kalshi: the definitive comparison

Polymarket vs Kalshi, side by side. Fees, markets, regulation, UX, custody, taxes. The short answer: Kalshi if you're in the US, Polymarket if you're not. Here's the full reasoning.

comparisons

Polymarket vs PredictIt: which is better in 2026?

Polymarket and PredictIt are fundamentally different animals. PredictIt is an academic research platform with $850 position caps and a narrow US-political focus. Polymarket is a liquid global exchange with no caps and broad market coverage. Here's the full comparison.

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What is a prediction market? The complete primer

Prediction markets let people trade contracts on the outcome of real-world events, turning collective opinion into probabilities. Here's how they work, why economists love them, and what Polymarket and Kalshi bring to the category.

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What is Kalshi? The first federally regulated US event-contract exchange

Kalshi is a CFTC-regulated designated contract market (DCM) that lets US residents trade event contracts on politics, economics, sports, weather, and crypto. Here's how it works and why it matters.

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What is Polymarket? A complete beginner's guide

Polymarket is the world's largest decentralized prediction market, built on Polygon and settled in USDC. Here's how it actually works, what makes it different, and why it matters.