YesNoFy User Guide
Everything you need to know about trading on prediction markets
Getting Started
What is YesNoFy?
YesNoFy is a prediction market platform where users trade on the outcomes of real-world events. Unlike traditional betting, you're not wagering against YesNoFy—you're trading with other users who have different views about the future.
How it works in 30 seconds:
- 1.Browse events — Sports, politics, crypto, technology, and more
- 2.Choose a side — Buy YES if you think it will happen, NO if it won't
- 3.Trade anytime — Sell your position before the event resolves
- 4.Earn on outcomes — If you're right, receive $1.00 per share. If wrong, $0.00
How Prediction Markets Work
A prediction market is a place where people put money where their opinions are. This creates a more accurate forecast than polls or surveys because participants have real financial stake in being correct.
"Will Bitcoin be above $100,000 by December 31, 2026?"
- If you think YES (it will happen), you buy YES shares
- If you think NO (it won't happen), you buy NO shares
- The current price reflects what the crowd believes
Key Concepts
Shares as Contracts
Each share is a contract that pays:
- • $1.00 if the outcome occurs
- • $0.00 if it doesn't
Price = Probability
Prices range from $0.01 to $0.99. You can read the price as an implied probability:
Mark Price (Mid Price)
The mark price is calculated as:
This is the reference price you'll see on market listings and position summaries.
Trading
How Prices Work
Prices change based on supply and demand. More buyers push prices up, more sellers push them down. Prices also respond to real-world information and market sentiment.
Reading Opportunities:
- • If you believe true probability is higher than current price → Buy YES
- • If you believe true probability is lower than current price → Buy NO
Placing Orders
YesNoFy supports four order types to give you control over execution and risk. Learn more about each type in the "Order Types" section below.
Jump to Order TypesOrder Types
Market Orders
Execute immediately at best available price
Use when: You want immediate execution and current prices are acceptable
Note: SELL orders require you to own shares first
Limit Orders
Execute only at your specified price (or better)
Use when: You want price control and are willing to wait
Stop Market Orders (SELL only)
Automatically sell if price drops to stop level
Use for: Stop-loss protection on existing positions
Stop Limit Orders (SELL only)
Stop-loss with price control after trigger
Risk: May not fill if limit price isn't reached
Managing Positions
Your position tracks your holdings in a market. View it in your Portfolio to see quantity, average entry price, current value, and profit/loss.
Increasing Position
Buy more shares on the same side. Your quantity increases and average price recalculates.
Decreasing Position
Sell part of your position. Realize profit/loss on sold portion.
Closing Position
Sell all shares. Position goes to zero, all collateral released.
Switching Sides
Close current position first, then open opposite side.
Understanding Risk
What You Can and Cannot Do
You CAN:
- ✅ Trade YES or NO shares
- ✅ Place market, limit, and stop orders
- ✅ Sell before settlement
- ✅ Track real-time P&L
- ✅ Cancel pending orders
- ✅ Switch sides (after closing position)
You CANNOT:
- ❌ Sell shares you don't own — You must have a position before placing SELL orders
- ❌ Hold both YES and NO simultaneously
- ❌ Place BUY stop orders (STOP orders are SELL-only)
- ❌ Trade after event starts
Why these rules? They ensure fair trading, proper order book structure, prevent manipulation, and establish clear risk boundaries.
Profit and Loss (P&L)
Unrealized P&L
Current profit/loss if you sold at mark price right now. Changes constantly as prices move.
Realized P&L
Locked-in profit/loss from shares already sold. Never changes after the sale.
Settlement P&L
At market resolution: $1.00 per share if correct, $0.00 if wrong.
Settlement and Payouts
After the real-world event concludes, the market resolves to YES or NO based on objective, verifiable data.
Note: You don't have to wait for settlement. You can sell your shares at market price any time before the event closes.
Support
Glossary
Frequently Asked Questions
Can I lose more than I invest?
No. Your maximum loss is limited to what you paid for your shares. There is no margin or leverage.
What happens if I'm wrong?
If the market resolves against you, your shares pay $0.00. However, you can always sell before settlement to cut losses.
Can I trade both YES and NO?
Yes, but not at the same time in the same market. You must close your current position before opening a position on the opposite side.
When can I withdraw my money?
You can withdraw your available balance at any time. Money locked in orders or positions must be released first.
Am I betting against YesNoFy?
No. You trade with other users. YesNoFy matches orders but doesn't take positions.
Ready to Start Trading?
Explore active markets and put your predictions to the test.
Disclaimer: Trading on prediction markets involves risk. Prices reflect trader demand and opinions, not guarantees about future outcomes. Only trade with money you can afford to lose. This content is for educational purposes only and does not constitute financial advice.