Polymarket Beginner's Guide: How Share Prices Equal Probabilities, How Yes/No Payouts Work & Instant Cash-Out
Master the three core mechanics of Polymarket in 3 minutes: why a 60¢ share price equals a 60% real-time probability, why every winning share pays exactly $1.00 USDC, and how to sell early on the orderbook 24/7 to lock in swing profits.
1. Rule #1: The Share Price in Cents (1¢–99¢) IS the Real-Time Probability
On Polymarket, every global event is traded as binary outcome shares: 'Yes' and 'No'. Share prices fluctuate between 1¢ ($0.01) and 99¢ ($0.99), and the sum of Yes + No always equals $1.00 USDC (100¢).
If 'Yes' trades at 40¢, the global market is pricing a 40% probability of the event happening. If the event resolves 'Yes', each 40¢ share pays out $1.00 USDC (a 2.50x gross return, or +60¢ net profit per share).
2. Two Ways to Profit: Hold to $1.00 Resolution vs. 24/7 Early Cash-Out
Method A (Hold to Settlement): Buy 1,000 'Yes' shares at 40¢ ($400 USDC cost). When the event resolves Yes, redeem for $1,000 USDC (+$600 net profit).
Method B (Pre-Resolution Swing Cash-Out): You never have to wait until final expiry! If breaking news pushes your 40¢ shares up to 72¢, click Sell on the CLOB orderbook anytime to cash out for $720 USDC—locking in a guaranteed +80% profit immediately.
3. Your 3-Step First Trade Checklist
Step 1: Filter by JEV Quality: Browse Live Markets and pick contracts with a JEV Pick ≥ 95% badge.
Step 2: Size with Half-Kelly: Check the Half-Kelly Calculator so a single position never exceeds 5%–12% of your bankroll.
Step 3: Use a 0%-Fee Limit Order: Switch the order ticket from Market to Limit to eliminate slippage and pay 0% platform fees.
More Tutorials in the Polymarket Knowledge Base
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Exchange to Polymarket USDC Deposit Guide: How to Withdraw from Binance, OKX, Bybit & Coinbase via Polygon ($0.05 Fee)
Poly Day (p.day) — Complete Guide to Prediction Markets, Polymarket Invite Code, Kalshi vs Polymarket & Live CLOB Odds
High-volume Polymarket queries, live CLOB odds, referral code, and regulatory guides
Poly Day (p.day) is the flagship 15-language intelligence terminal for the global prediction market ecosystem. As searches for «prediction market», «what is prediction market», «polymarket gov shutdown», «polymarket president», «polymarket iran», and «clarity act polymarket» surge worldwide, Polymarket's Polygon Central Limit Order Book (CLOB) prices real-time probabilities between 1¢ and 99¢ USDC with deeper liquidity and faster price discovery than traditional polls.
Whether you are comparing «Kalshi vs Polymarket», researching «polymarket stocks» (note: Polymarket is private; traders buy event outcome shares rather than equity), querying the «polymarket api», or looking for an official «polymarket invite code» / «polymarket referral code», Poly Day (p.day) delivers 60-second orderbook telemetry, smart-money whale alerts (>75% win rate), and Half-Kelly position sizing.