position-sizer SKILL.md skillA
position-sizer from wind-alice/alicemarket is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add wind-alice/alicemarket/position-sizer@git:20260428.fa18f38Pins git:20260428.fa18f38 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- wind-alice/alicemarket
- Path
skills/position-sizer/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260428.fa18f38, committed Apr 28, 2026
- Size
- 6,141 bytes
- Repository stars
- 153
- License
- none declared
Calculate risk-based position sizes for long stock trades. Use when user asks about position sizing, how many shares to buy, risk per trade, Kelly criterion, ATR-based sizing, or portfolio risk allocation. Supports stop-loss distance calculation, volatility scaling, and sector concentration checks.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Position Sizer ## Overview Calculate the optimal number of shares to buy for a long stock trade based on risk management principles. Supports three sizing methods: - **Fixed Fractional**: Risk a fixed percentage of account equity per trade (default: 1%) - **ATR-Based**: Use Average True Range to set volatility-adjusted stop distances - **Kelly Criterion**: Calculate mathematically optimal risk allocation from historical win/loss statistics All methods apply portfolio constraints (max position %, max sector %) and output a final recommended share count with full risk breakdown. ## When to Use - User asks "how many shares should I buy?" - User wants to calculate position size for a specific trade setup - User mentions risk per trade, stop-loss sizing, or portfolio allocation - User asks about Kelly Criterion or ATR-based position sizing - User wants to check if a position fits within portfolio concentration limits ## Prerequisites - No API keys required - Python 3.9+ with standard library only ## Workflow ### Step 1: Gather Trade Parameters Collect from the user: - **Required**: Account size (total equity) …
Read the whole file at its exact version.
How to install
mdr add wind-alice/alicemarket/position-sizer@sha256:1fe79c0d268c3b4cThe line at the top of this page pins the label git:20260428.fa18f38, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_n526bpukj4y4plp7)
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Versions
The registry has recorded 1 version of this file, committed on Apr 28, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6141 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
wind-alice/alicemarket · 153 stars · license none declared · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_n526bpukj4y4plp7 GET https://markdownregistry.com/api/v1/resolve?ref=wind-alice/alicemarket/position-sizer GET https://markdownregistry.com/api/v1/blob/1fe79c0d268c3b4c581db68b4840308211ba9f5c203294842d143e822bc2e397
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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