In this guide
What separates reliably profitable prediction market traders from those treading water financially typically hinges on methodology and discipline rather than forecasting acumen alone. This guide outlines the core routines that seasoned professionals implement during every trading session.
Before Entering Any Position
- Articulate your edge: What insight do you possess that the broader market has overlooked? Commit this reasoning to a single sentence before executing any trade.
- Check the spread: Does the gap between buy and sell prices remain tight enough that your competitive advantage justifies the transaction fee?
- Assess liquidity: Will you be able to unwind this position at a reasonable price should circumstances demand it? Examine the depth of available orders.
- Set your probability independently: Establish your forecast without reference to current market quotations, thereby protecting yourself from anchoring distortions.
- Calculate position size: Apply the half-Kelly criterion. Never risk more than 5% of total capital on any single trade, irrespective of confidence level.
During Position Management
- Update on new information: When pivotal events unfold (speeches, economic reports, announcements), reassess your forecast and determine whether to expand, maintain, or liquidate your stake.
- Don't check obsessively: Intraday volatility represents statistical noise rather than meaningful signal. For markets with extended timeframes, review holdings once daily rather than repeatedly throughout the day.
- Pre-define your exit criteria: Establish in advance the price level at which you will close the position if your thesis proves incorrect, thereby eliminating emotional interference.
After Each Market Resolves
- Record everything: Timestamp, contract identifier, your forecast estimate, entry price, final result, gains or losses
- Score your calibration: Did your 70% probability assessments materialise as winners roughly 70% of the time?
- Categorize by market type: Do you demonstrate superior returns in geopolitical versus digital assets versus athletic competitions?
- Review your losers honestly: Did a flawed methodology produce this loss, or did sound reasoning simply encounter unfavourable variance?
Weekly Review Routine
- Reconcile all positions and P&L
- Calculate rolling 30-day and 90-day Brier scores
- Review upcoming calendar events (Fed meetings, elections, major data releases)
- Identify any systematic biases in your recent trading
- Rebalance portfolio allocation if needed
FAQ
- How often should I review my prediction market performance?
- A weekly cadence suits the majority of participants. Evaluating every day encourages excessive turnover; waiting until month-end allows profitable adjustments to slip away.
- What software should I use to track prediction market trades?
- PolyGram's integrated portfolio tracking system provides a solid foundation. For more granular performance measurement, export your transaction log as CSV and process it through Excel, Google Sheets, or a Python script.
- How many markets should I research before entering each week?
- Depth of analysis outweighs breadth. Conducting rigorous due diligence on 3-5 opportunities typically yields superior results compared to cursory examination of 20 candidates.