The St. Louis Federal Reserve updated its Financial Stress Index today for the week ending December 17, see chart above (data here). For those who don't like the CBOE VIX Index as a measure of stock market uncertainty or volatility, this is an alternative measure of the amount of financial stress affecting the markets (explanation here) based on 18 individual variables including seven different interest rates, six interest rate yield spreads, and five measures of market volatility (including the VIX). According to the St. Louis Fed, each of the 18 component variables in the Financial Stress Index captures some aspect of financial stress in the markets, and the Financial Stress Index incorporates the 18 variables into a single, composite index measure that tracks the amount of overall financial stress in the markets.