Introduction
# Stock Price Checker
Get current stock prices from Yahoo Finance using the yfinance library.
## Quick Commands
```bash 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:** ```bash python3 stock-price.py NVDA ```
**Check VOO (S&P 500 ETF):** ```bash python3 stock-price.py VOO ```
**Check QQQ (Nasdaq-100 ETF):** ```bash python3 stock-price.py QQQ ```
**Check any stock symbol:** ```bash python3 stock-price.py TSLA python3 stock-price.py MSFT python3 stock-price.py AAPL ```
## Output Format
```json { "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