Financial Chart Generator

This project is a Python script that generates financial charts for a list of stock symbols. It uses yfinance to download historical data and mplfinance to create candlestick charts. The script also includes a PatternDetector class that can identify various technical analysis patterns in the data.

Features

• Data Fetching: Downloads historical stock data from Yahoo Finance using the yfinance library.
• Chart Generation: Creates clean and informative candlestick charts using mplfinance.
• Technical Pattern Detection: Includes a PatternDetector class to identify common technical analysis patterns, such as:
  • Head and Shoulders
  • Double Top and Double Bottom
  • Ascending, Descending, and Symmetrical Triangles
  • Bull and Bear Flags
  • Cup and Handle
  • Price Channels
• Configuration: Easily configure the list of stock symbols to analyze by editing the symbols.yaml file.
• Pattern Toggle: Enable or disable pattern detection globally from the symbols.yaml file.

Installation

1. Clone the repository:

   git clone https://github.com/tyoungg/substack.git
   cd substack

2. Install the dependencies:

   pip install -r requirements.txt

Usage

1. Run the script:

   python generate_charts.py

   The generated charts will be saved in the charts directory.

2. Customize the stock symbols:

   • Open the symbols.yaml file.
   • Add or remove symbols from the symbols list.

3. Enable or disable pattern detection:

   • Open the symbols.yaml file.
   • Set enable_patterns to true to enable pattern detection, or false to disable it.

How It Works

The script uses the yfinance library to download historical stock data for the symbols defined in symbols.yaml. It then processes the data and uses the mplfinance library to generate candlestick charts.

When enable_patterns is set to true in symbols.yaml, the script uses the PatternDetector class to analyze the data for the following technical patterns:

• Head and Shoulders: Identifies a specific chart formation that predicts a bullish-to-bearish trend reversal.
• Double Top and Double Bottom: Chart patterns that occur when a stock price reaches a certain level twice and is unable to break through.
• Triangles: Formations that occur when the price of a stock is consolidating. The script can identify ascending, descending, and symmetrical triangles.
• Flags: Short-term continuation patterns that occur after a sharp price movement.
• Cup and Handle: A bullish continuation pattern that resembles a cup with a handle.
• Price Channels: Two parallel trendlines that contain the price of a stock.

If any of these patterns are detected, they are drawn on the chart, and a legend is added to identify them.