24mlight/stockclaw/yahoo-finance

Yahoo Finance CLI

A Python CLI for fetching comprehensive stock data from Yahoo Finance using yfinance.

This repo ships a local executable script at {baseDir}/yf.py.

• For historical backtest preparation, prefer:

uv run {baseDir}/yf.py history AAPL.US MSFT.US --start 2026-03-09 --end 2026-03-12 --output json

• For quick spot checks, prefer:

uv run {baseDir}/yf.py price AAPL.US --output json

• For broader multi-factor stock analysis, prefer the stock-analysis skill.

Requirements

• Python 3.11+
• uv (for inline script dependencies)

Installing uv

The script requires uv - an extremely fast Python package manager. Check if it's installed:

uv --version

If not installed, install it using one of these methods:

macOS / Linux

curl -LsSf https://astral.sh/uv/install.sh | sh

macOS (Homebrew)

brew install uv

Windows

powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"

pip (any platform)

pip install uv

After installation, restart your terminal or run:

source ~/.bashrc  # or ~/.zshrc on macOS

Installation

The yf script uses PEP 723 inline script metadata - dependencies are auto-installed on first run.

# Make executable
chmod +x /path/to/skills/yahoo-finance/yf
 
# Optionally symlink to PATH for global access
ln -sf /path/to/skills/yahoo-finance/yf /usr/local/bin/yf

First run will install dependencies (yfinance, rich) to uv's cache. Subsequent runs are instant.

Commands

Price (quick check)

yf AAPL              # shorthand for price
yf price AAPL

Quote (detailed)

yf quote MSFT

Fundamentals

yf fundamentals NVDA

Shows: PE ratios, EPS, market cap, margins, ROE/ROA, analyst targets.

Earnings

yf earnings TSLA

Shows: Next earnings date, EPS estimates, earnings history with surprises.

Company Profile

yf profile GOOGL

Shows: Sector, industry, employees, website, address, business description.

Dividends

yf dividends KO

Shows: Dividend rate/yield, ex-date, payout ratio, recent dividend history.

Analyst Ratings

yf ratings AAPL

Shows: Buy/hold/sell distribution, mean rating, recent upgrades/downgrades.

Options Chain

yf options SPY

Shows: Near-the-money calls and puts with strike, bid/ask, volume, OI, IV.

History

yf history GOOGL 1mo     # 1 month history
yf history TSLA 1y       # 1 year
yf history BTC-USD 5d    # 5 days

Ranges: 1d, 5d, 1mo, 3mo, 6mo, 1y, 2y, 5y, 10y, ytd, max

Compare

yf compare AAPL,MSFT,GOOGL
yf compare RELIANCE.NS,TCS.NS,INFY.NS

Side-by-side comparison with price, change, 52W range, market cap.

Search

yf search "reliance industries"
yf search "bitcoin"
yf search "s&p 500 etf"

Symbol Format

• US stocks: AAPL, MSFT, GOOGL, TSLA
• Indian NSE: RELIANCE.NS, TCS.NS, INFY.NS
• Indian BSE: RELIANCE.BO, TCS.BO
• Crypto: BTC-USD, ETH-USD
• Forex: EURUSD=X, GBPUSD=X
• ETFs: SPY, QQQ, VOO

Examples

# Quick price check
yf AAPL
 
# Get valuation metrics
yf fundamentals NVDA
 
# Next earnings date + history
yf earnings TSLA
 
# Options chain for SPY
yf options SPY
 
# Compare tech giants
yf compare AAPL,MSFT,GOOGL,META,AMZN
 
# Find Indian stocks
yf search "infosys"
 
# Dividend info for Coca-Cola
yf dividends KO
 
# Analyst ratings for Apple
yf ratings AAPL

Troubleshooting

"command not found: uv"

Install uv using the instructions above.

Rate limiting / connection errors

Yahoo Finance may rate limit excessive requests. Wait a few minutes and try again.

"No data" for a symbol

• Verify the symbol exists: yf search "company name"
• Some data (options, dividends) isn't available for all securities

Technical Notes

• Uses PEP 723 inline script metadata for uv dependencies
• Rich library provides colored, formatted tables
• First run installs deps to uv cache (~5 seconds)
• Subsequent runs are instant (cached environment)
• Handles NaN/None values gracefully with fallbacks