The 2015–2016 stock market selloff was the period of decline in the value of stock prices globally that occurred between June 2015 to June 2016. It included the 2015–2016 Chinese stock market turbulence, in which the SSE Composite Index fell 43% in just over 2 months between June 2015 and August 2015, which culminated in the devaluation of the yuan. Investors sold shares globally as a result of slowing growth in the GDP of China, a fall in petroleum prices, the Greek debt default in June 2015, the effects of the end of quantitative easing in the United States in October 2014, a sharp rise in bond yields in early 2016, and finally, in June 2016, the 2016 United Kingdom European Union membership referendum, in which Brexit was voted upon.