Axioma Developed Markets EX-US Equity Factor Risk Model (US4) is a multi-factor developed markets ex-US equity risk model designed for institutional investors managing medium- and short-horizon portfolios across global developed equity markets outside the United States. The model provides daily updates for country, currency, industry, liquidity, momentum, volatility, profitability, leverage, dividend yield, and exchange rate sensitivity risk factors to support portfolio construction, risk decomposition, stress testing, and quantitative portfolio management.