Portugal PSI20 Index increased 7.5 points or 0.17% to 4461.50 on Friday July 1 from 4454 in the previous trading session. Portugal PSI20 Index lost 1156 points or 20.58 percent during the last 12 months from 5,617.71 points in July of 2015. Historically, the Portugal Stock Market (PSI20) reached an all time high of 14822.59 in March of 2000 and a record low of 2917.56 in January of 1993. The Portuguese Stock Index PSI 20 is a benchmark stock market index which tracks the performance of 20 companies with the largest market capitalization and share turnover in the Euronext Lisbon Stock Exchange. It is a free-float, capitalization weighted index. The PSI 20 Index has a base value of 3000 as of December 31, 1992. This page provides – Portugal Stock Market (PSI20) – actual values, historical data, forecast, chart, statistics, economic calendar and news.