# Canslim Screener

Screen US stocks using William O'Neil's CANSLIM growth stock methodology.

- Repository: https://github.com/tradermonty/claude-trading-skills (3536 stars)
- Category: Marketing
- License: MIT
- Last updated: 2026-11-01
- Runs scripts: yes, review before use

## Install

Claude Code: `npx skills add tradermonty/claude-trading-skills --skill canslim-screener -g -a claude-code -y`
Codex: `npx skills add tradermonty/claude-trading-skills --skill canslim-screener -g -a codex -y`
Cursor: `npx skills add tradermonty/claude-trading-skills --skill canslim-screener -g -a cursor -y`
Gemini CLI: `npx skills add tradermonty/claude-trading-skills --skill canslim-screener -g -a gemini-cli -y`

## Description

Screen US stocks using William O'Neil's CANSLIM growth stock methodology. Use when user requests CANSLIM stock screening, growth stock analysis, momentum stock identification, or wants to find stocks with strong earnings and price momentum following O'Neil's investment system.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# CANSLIM Stock Screener - Phase 3 (Full CANSLIM)

## Overview

This skill screens US stocks using William O'Neil's proven CANSLIM methodology, a systematic approach for identifying growth stocks with strong fundamentals and price momentum. CANSLIM analyzes 7 key components: **C**urrent Earnings, **A**nnual Growth, **N**ewness/New Highs, **S**upply/Demand, **L**eadership/RS Rank, **I**nstitutional Sponsorship, and **M**arket Direction.

**Phase 3** implements all 7 of 7 components (C, A, N, S, L, I, M), representing **100% of the full methodology**.

**Two-Stage Approach:**
1. **Stage 1 (FMP API + Finviz)**: Analyze stock universe with all 7 CANSLIM components
2. **Stage 2 (Reporting)**: Rank by composite score and generate actionable reports

**Key Features:**
- Composite scoring (0-100 scale) with weighted components
- **Finviz fallback** for institutional ownership data (automatic when FMP data incomplete)
- Progressive filtering to optimize API usage
- JSON + Markdown output formats
- Interpretation bands: Exceptional+ (90+), Exceptional (80-89), Strong (70-79), Above Average (60-69)
- Bear market protection (M component gating)

**Phase 3.1 Component Weights (Original O'Neil weights):**
- C (Current Earnings): 15%
- A (Annual Growth): 20%
- N (Newness): 15%
- S (Supply/Demand): 15%
- L (Leadership/RS Rank): 20%, multi-period weighted RS (3m/6m/12m vs configurable benchmark)
- I (Institutional): 10%
- M (Market Direction): 5%

**Weighted RS Formula:**
```
Weighted RS = 0.40 × rel_3m + 0.30 × rel_6m + 0.30 × rel_12m
```
Available periods are re-normalized when some are missing. Default benchmark is `^GSPC`;
override with `--rs-benchmark SPY/QQQ/IWM/...`.

The rest: https://github.com/tradermonty/claude-trading-skills/blob/HEAD/skills/canslim-screener/SKILL.md