The Helsinki Stock Exchange was transferred to a digital system called HETI or the Helsinki Stock Exchange Automated Trading and Information System. This system enabled the even the remote traders to carry out trading along with those in the trading rooms. Again in 1995 the cooperative got transformed into Helsingin Arvopaperiporssi, that is, a Limited Liability Company. Finally in 1997-98, the Helsinki Stock Exchange became the popularly known HEX. When the Helsinki Stock Exchange gave birth to the HEX, it brought with itself Finnish Derivative Exchanges.
In the year 1998, Arvopaperikeskus and HEX merged to form the Helsinki Exchanges Group Plc. The most important years in the history of Hex were 2001-02, when it acquired the shares of the Riga Stock Exchange and the Tallinn Stock Exchange.
Some of the very important stocks in the Stock Exchange of Helsinki are AffectoGenimap (AFE), OKO Osuuspankkien, Ahlstrom (AHL), Olvi Plc (OLV), Alma Media Plc (ALM), Okmetic Plc (OKM), Aldata Solution Plc (ALD), OMX AB (OMH), and Amanda CapitalPlc (AMC). The stock market index for the Stock Exchange in Helsinki is OMX Helsinki25 (OMXH25).
