In this guide
What separates consistently winning prediction market traders from those treading water or falling behind typically hinges on disciplined methodology rather than forecasting skill alone. This guide outlines the core habits that seasoned professionals implement in their daily trading routines.
Before Entering Any Position
- Articulate your edge: What insight do you possess that the broader trader community lacks? Commit this reasoning to a single sentence prior to executing any trade.
- Check the spread: Does the gap between buy and sell prices remain tight enough that your informational advantage outweighs the cost of trading?
- Assess liquidity: Will you be able to unwind this position at a favourable price if circumstances demand it? Examine the depth of available orders.
- Set your probability independently: Establish your own forecast before observing what the market is pricing to prevent anchoring to prevailing sentiment.
- Calculate position size: Apply the half-Kelly criterion. Never risk more than 5% of your total capital on any single trade, irrespective of confidence level.
During Position Management
- Update on new information: When significant events materialise (speeches, economic reports, breaking news), revise your forecast and determine whether to increase exposure, maintain your stake, or close out.
- Don't check obsessively: Intraday swings represent statistical noise rather than meaningful signals. Monitor your holdings once daily for markets with extended timeframes.
- Pre-define your exit criteria: At what market level will you cut losses if your thesis proves incorrect? Lock in this decision before committing capital to sidestep reactive choices.
After Each Market Resolves
- Record everything: Timestamp, contract name, your forecast percentage, entry price, final outcome, gains or losses
- Score your calibration: Did predictions you rated at 70% confidence actually resolve favourably 70% of the time?
- Categorize by market type: Do your returns differ across political, digital asset, and sports categories?
- Review your losers honestly: Did faulty reasoning lead to this loss, or did sound analysis simply encounter unfavourable randomness?
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 works best for the majority of participants. Reviewing daily tends to encourage excessive trading, whilst waiting a full month risks missing crucial adjustments.
- What software should I use to track prediction market trades?
- PolyGram's integrated portfolio management system provides a solid foundation. For more granular performance metrics, export your transaction data 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 matters far more than breadth. Conducting rigorous due diligence on 3-5 opportunities typically yields superior results compared to cursory examination of dozens.