position-sizer

Size long stock trades around the risk you can afford.

position sizing

What it does

Calculates risk-based share counts for long stock trades using multiple sizing methods and portfolio constraints.

When to use it

Use for share-count, trade-risk, stop-loss, Kelly, ATR, portfolio-allocation, or concentration-sizing questions.

Give it an account size and method-specific trade statistics; it saves JSON and Markdown position-sizing reports.

What you provide

This skill

current stock prices

Read

Looks up current stock prices

Requires Python 3.9 or later; the script uses only the standard library.