Kenya NSE20 Index decreased 7.6 points or 0.21% to 3629 on Wednesday June 29 from 3636.60 in the previous trading session. Kenya NSE20 Index lost 1229 points or 25.30 percent during the last 12 months from 4,858.42 points in June of 2015. Historically, the Kenya Stock Market (NSE20) reached an all time high of 5499.64 in March of 2015 and a record low of 3103.04 in December of 2011. The Nairobi Securities Exchange 20 Share Index NSE20 is a major stock market index which tracks the performance of 20 best performing companies listed on the Nairobi Securities Exchange. The companies are selected based on a weighted market performance for a 12 month period based on market capitalization, number of shares traded, number of deals and turnover.he NSE20 is a major stock market index which tracks the performance of large companies based in Kenya. This page provides – Kenya Stock Market (NSE20) – actual values, historical data, forecast, chart, statistics, economic calendar and news.