Back to Skill Marketplace

Market Data

stock-price-checker

Stock Price Checker is a lightweight Python CLI tool that fetches current equity and ETF data from Yahoo Finance using the yfinance library. It returns structured JSON containing symbol, real-time price, absolute and percent change, previous close, market capitalization, volume, and 52-week high/low

Updated today<1 min setup

Overview

Stock Price Checker is a lightweight Python CLI tool that fetches current equity and ETF data from Yahoo Finance using the yfinance library.

Stock Price Checker is a lightweight Python CLI tool that fetches current equity and ETF data from Yahoo Finance using the yfinance library. It returns structured JSON containing symbol, real-time price, absolute and percent change, previous close, market capitalization, volume, and 52-week high/low. Key features include no API key requirement, graceful error handling for invalid symbols or missing fields, and compatibility with most major stocks and ETFs. Use cases include quick command-line lookups, embedding price checks in automation scripts or alerts, populating dashboards, validating market data for backtests, and ad-hoc portfolio monitoring. Core advantages are simplicity, cross-platform portability, comprehensive data fields in machine-readable JSON, and easy integration into existing Python workflows or DevOps pipelines.

Skill.md

How this skill works

Stock Price Checker is a lightweight Python CLI tool that fetches current equity and ETF data from Yahoo Finance using the yfinance library. It returns structured JSON containing symbol, real-time price, absolute and percent change, previous close, market capitalization, volume, and 52-week high/low

SKILL.mdALPHIO / VERIFIED

Stock Price Checker

Get current stock prices from Yahoo Finance using the yfinance library.

Quick Commands

cd skills/stock-price-checker

# Check stock price
python3 stock-price.py NVDA

# Check another stock
python3 stock-price.py AAPL

Usage Examples

Check NVIDIA stock:

python3 stock-price.py NVDA

Check VOO (S&P 500 ETF):

python3 stock-price.py VOO

Check QQQ (Nasdaq-100 ETF):

python3 stock-price.py QQQ

Check any stock symbol:

python3 stock-price.py TSLA
python3 stock-price.py MSFT
python3 stock-price.py AAPL

Output Format

{
  "symbol": "NVDA",
  "price": 189.52,
  "change": 3.05,
  "change_percent": 1.64,
  "previous_close": 186.47,
  "market_cap": 4614243483648,
  "volume": 112439494,
  "fifty_two_week_high": 212.19,
  "fifty_two_week_low": 86.62
}

Technical Notes

  • Uses yfinance library to fetch data from Yahoo Finance
  • No API key required
  • Handles errors gracefully
  • Works with most major stocks and ETFs
  • Returns comprehensive data including market cap, volume, and 52-week range

Troubleshooting

  • If the stock symbol is invalid, the script will return an error
  • Some data (like market cap) may not be available for all symbols

Best used for

When to use it

Stock Price Checker is a lightweight Python CLI tool that fetches current equity and ETF data from Yahoo Finance using the yfinance library. It returns structured JSON containing symbol, real-time price, absolute and percent change, previous close, market capitalization, volume, and 52-week high/low

01 · PRE-MEETING

Prepare a decision brief

Turn scattered evidence into a structured case before an investment committee meeting.

02 · TEAM WORKFLOW

Standardize handoffs

Create consistent research outputs across analysts, portfolio managers, and agents.

03 · LIVE UPDATE

Refresh the thesis

Update scenarios after a new catalyst, KPI release, or earnings result.

Community notes

Built to improve with use.

Feedback will appear here as this skill is used and reviewed.

Leave feedback

Discover more

Related skills

View all
無料で始める