The Istanbul Stock Exchange National 100 Index XU100 is a major stock market index which tracks the performance of 100 companies selected from the National Market, real estate investment trusts and venture capital investment trusts listed on The Istanbul Stock Exchange. It is a capitalization-weighted index. The XU100 has a base value of 1 as of January 1986. This page provides the latest reported value for - Turkey Stock Market (XU100) - plus previous releases, historical high and low, short-term forecast and long-term prediction, economic calendar, survey consensus and news. Turkey Stock Market (XU100) - actual data, historical chart and calendar of releases - was last updated on October of 2018.