Confidence Interval Generator
Pinpoint probability ranges for smarter predictions.
Overview
This pillar quantifies uncertainty by calculating a statistically probable range around a point estimate. It helps you move beyond a single prediction to understand the likely boundaries of an outcome, which is crucial for pricing risk.
What It Does
The Confidence Interval Generator takes a central forecast, like an average price prediction, and analyzes its historical volatility or simulation data. It then applies statistical formulas to establish upper and lower bounds for an outcome at a specified confidence level, such as 95%. This creates a data-driven range rather than a simple, single-point guess.
Why It Matters
Prediction markets often misprice the likelihood of an outcome falling within a certain range. This pillar provides a statistical edge by identifying when a market's implied range is too narrow or too wide, creating opportunities for profitable trades on volatility and certainty.
How It Works
First, a point estimate for an event is established from another model or consensus data. Second, the standard error is calculated based on historical data volatility or simulation results. Finally, using a selected confidence level, it calculates the interval by adding and subtracting the margin of error from the point estimate.
Methodology
Calculates a confidence interval using the formula: CI = Point Estimate ± (Z-score * Standard Error). The Z-score is determined by the desired confidence level, for example 1.96 for 95% confidence. The Standard Error is derived from the standard deviation of historical data over a defined lookback period or from the output of a Monte Carlo simulation.
Edge & Advantage
This provides a clear statistical basis for trading on range, over/under, or spread markets, moving beyond gut feelings about volatility.
Key Indicators
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Confidence Bounds
highThe upper and lower values of the calculated range at a given confidence level (e.g., 95%).
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Standard Error Estimate
highMeasures the statistical accuracy of an estimate. A smaller value means a tighter, more precise range.
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Interval Width
mediumThe absolute difference between the upper and lower bounds, indicating the expected market volatility.
Data Sources
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Historical Market Data
Provides price or outcome history used to calculate standard deviation and volatility.
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Forecast Model Outputs
Supplies the central point estimate around which the confidence interval is built.
Example Questions This Pillar Answers
- → Will Bitcoin's price be between $65,000 and $70,000 on July 1st?
- → Will the S&P 500 close up or down by more than 1.5% tomorrow?
- → Will the total points scored in the upcoming Lakers vs. Celtics game be over or under 225.5?
Tags
Use Confidence Interval Generator on a real market
Run this analytical framework on any Polymarket or Kalshi event contract.
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