| """Stock price lookup tool for financial analysis.""" |
|
|
| from datetime import datetime |
| from typing import Dict, Union |
|
|
| import yfinance as yf |
|
|
|
|
| def get_stock_price(ticker: str, days: str = "1d") -> Dict[str, Union[float, str, list, datetime]]: |
| """Retrieve stock price data for a given ticker symbol. |
| |
| Args: |
| ticker (str): The stock ticker symbol (e.g., 'AAPL' for Apple Inc.) |
| days (str): Number of days of historical data to fetch (default: 1d). |
| Must be one of: 1d, 5d, 1mo, 3mo, 6mo, 1y, 2y, 5y, 10y, ytd, max |
| |
| Returns: |
| Dict[str, Union[float, str, list, datetime]]: Dictionary containing: |
| - prices (list): List of closing prices for requested days |
| - currency (str): The currency of the price (e.g., 'USD') |
| - timestamps (list): List of timestamps for each price |
| |
| Raises: |
| ValueError: If the ticker symbol is invalid or data cannot be retrieved |
| ValueError: If days parameter is not one of the allowed values |
| |
| Metadata: |
| - version: 0.0.1 |
| - author: John Doe |
| - requires_gpu: False |
| - requires_api_key: False |
| """ |
| |
| valid_days = ["1d", "5d", "1mo", "3mo", "6mo", "1y", "2y", "5y", "10y", "ytd", "max"] |
| if days not in valid_days: |
| raise ValueError(f"'days' must be one of: {valid_days}") |
|
|
| try: |
| |
| stock = yf.Ticker(ticker) |
|
|
| |
| hist = stock.history(period=days) |
|
|
| if hist.empty: |
| raise ValueError(f"No data returned for ticker {ticker}") |
|
|
| return { |
| "prices": hist["Close"].tolist(), |
| "currency": stock.info.get("currency", "USD"), |
| "timestamps": [ts.to_pydatetime() for ts in hist.index], |
| } |
|
|
| except Exception as e: |
| raise ValueError(f"Failed to retrieve stock price for {ticker}: {str(e)}") from e |
|
|
