# Calculations

- [Profit and Loss](https://docs.optionalpha.com/technical-documentation/calculations/profit-and-loss.md): An overview of how profit and loss are calculated and displayed on the bot dashboard.
- [Decision Properties](https://docs.optionalpha.com/technical-documentation/calculations/decision-properties.md): Security object details and the various properties used to create decisions.
- [Decision Calculations](https://docs.optionalpha.com/technical-documentation/calculations/decision-calculations.md): Overview of the calculations used by decision recipes to determine position value.
- [Parameter Selection](https://docs.optionalpha.com/technical-documentation/calculations/parameter-selection.md): Technical explanations on how calculated input parameters are chosen.
- [Probability](https://docs.optionalpha.com/technical-documentation/calculations/probability.md): Probability and chance are used synonymously. Any decision recipes describing the probability or chance of something happening will be calculated by the probability formula described here.
- [Probability Theory](https://docs.optionalpha.com/technical-documentation/calculations/probability-theory.md): Implied volatility (IV) and historical volatility (HV) are essential measures in probability theory. Learn why Option Alpha uses HV for calculating the probability of a future price.
- [Understanding Alpha and Expected Value](https://docs.optionalpha.com/technical-documentation/calculations/understanding-alpha-and-expected-value.md): Explore the math behind Expected Value (EV) for defined-risk options trades. We discuss Trade Ideas 2.0's groundbreaking EV-based Alpha metric.


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