Volatility of stock price index is the 360-day standard deviation of the return on the national stock market index. (Bloomberg)
Source Code: GFDD.SM.01
Source: World Bank
Release: Global Financial Development
World Bank, Volatility of Stock Price Index for Saudi Arabia [DDSM01SAA066NWDB], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/DDSM01SAA066NWDB/, July 29, 2015.