Stock Analysis Project

This is a project using the yfinance API to access Yahoo Finance's publicly available financial and market data. Several functions within scripts will run an analysis on any given stock and give it a scored valuation that will help you determine whether the stock is worth buying.

Overview

• Created by Rolando Mancilla-Rojas

  • My GitHub
  • My LinkedIn

• Project started June 9, 2025 | WORK IN PROGRESS

Sources

• yfinance

  • GitHub repository to ranaroussi's yfinance API

• Yahoo Finance

  • Data scraped from API

• w3 Resources

  • Tons of help from back-end tutorials

Changelog

June

• 6/9/2025 8:00pm :

  • Created repo, installed yfinance

• 6/10/2025 4:15pm :

  • Added 2year stock percentage change
  • Created a scoring system

• 6/11/2025 3:57pm :

  • Added 6mo stock percentage change + scoring system
  • Created Stock-Analysis-Project.py

• 6/12/2025 3:22pm :

  • Added trailing PE ratio + scoring system
  • Updated Stock-Analysis-Project.py
  • Added stock_info_csvs folder to import .csv's of stock info

July

• 7/1/2025 5:28pm :

  • Simplified PE ratio code lines
  • used try: statements to account for errors

• 7/2/2025 7:46pm :

  • added new files implementing class StockAnalyzer:
  • simplified analytical functions into methods.

• 7/3/2025 5:13pm :

  • converted old procedural code into classes
  • added bull flag detection

• 7/7/2025 6:06pm :

  • added Volume/Avg Volume calculations
  • cleaned up run_all() method

• 7/19/2025 4:33pm :

  • Finished scoring system, Stock-Analyzer.py
    • Thanks to Ayema, Kabbo for help with scoring code!
  • Created app.py

• 7/22/2025 5:28pm :

  • Debugging scoring system

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Warning

This is not financial advice. Always do your own research before you purchase stocks.