The OMX Iceland All-Share PI is a stock market index for all stocks traded on the Nasdaq Iceland main market. It is a price return and capitalization-weighted index. The base date for the OMX Iceland All-Share PI is 31 December 1997, with a base value of 1,000. The index is reconstituted and rebalanced each trading day. In 2004, a total return version of the OMX Iceland All-Share index was launched, the OMX Iceland All-Share GI. Unlike the OMXIPI, the OMXIGI includes reinvested dividends. Wikipedia