yahoo-finance

SKILL.md

Yahoo Finance CLI

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

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