sizing

Calculate optimal position sizes using the Kelly criterion and dynamic bankroll management.

650|137|Updated Jan 26, 2026
One-click install
npx skills add https://github.com/alsk1992/CloddsBot --skill sizing
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: sizing
Source: https://github.com/alsk1992/CloddsBot/tree/main/src/skills/bundled/sizing
Command: npx skills add https://github.com/alsk1992/CloddsBot --skill sizing

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ../../../trading/kelly, and includes scripts (resource) components.

What problem does it solve?

This Skill helps traders determine optimal bet sizes using the Kelly criterion and bankroll management principles, reducing risk and maximizing potential returns.

Core Features & Use Cases

  • Kelly Criterion Calculation: Computes optimal bet sizes based on estimated probability and market price.
  • Fractional Kelly: Supports conservative sizing strategies like half or quarter Kelly.
  • Dynamic Adjustments: Adjusts sizing based on recent performance, drawdown, and confidence.
  • Use Case: A trader wants to bet on a market with a 55% estimated probability at a price of $0.45, with a bankroll of $10,000. This Skill will calculate the recommended bet size using half Kelly.

Quick Start

Calculate the optimal position size for a market with 5% edge and 60% win rate, assuming a $10,000 bankroll.

Frequently Asked Questions about sizing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate optimal position sizing using the Kelly criterion?

Kelly criterion position sizing calculates optimal bet amounts by comparing your estimated win probability against the market price. This Skill computes the exact fraction of your bankroll to risk to maximize long-term growth.

What is fractional Kelly and can I use it for conservative bankroll management?

Fractional Kelly applies a fraction of the full Kelly criterion recommendation, such as half or quarter Kelly, to reduce volatility. This Skill supports fractional Kelly to enforce conservative bankroll management and protect against drawdowns.

How does dynamic position sizing adjust based on win rate and drawdown?

Dynamic position sizing adjusts your bet size automatically based on recent historical performance, current drawdown, and confidence levels. This Skill integrates a dynamic calculator that scales risk exposure according to your changing win rate.

Can I calculate portfolio allocation for multi-outcome markets?

Portfolio allocation for multi-outcome markets distributes your bankroll across multiple simultaneous positions. This Skill supports multi-outcome market sizing and portfolio allocation with confidence adjustments to optimize overall risk.

What is the best way to size a trade with a 5% edge and a $10,000 bankroll?

The best way to size a trade with a 5% edge is to apply the Kelly criterion to your $10,000 bankroll using your estimated win rate. This Skill calculates the recommended dollar amount, applying half Kelly for conservative risk management.

When should I not use full Kelly criterion for trading?

You should not use full Kelly criterion when your probability estimates are uncertain or market volatility is high. This Skill mitigates these limitations by offering fractional Kelly and confidence adjustments to prevent over-betting.