Erste Securities İstanbul is a fully owned subsidiary of Erste Group. Erste Group acquired Lehman Brothers Menkul Değerler A.Ş. on 30 October 2009 and changed the name of the company as Erste Securities İstanbul Menkul Değerler A.Ş.
Erste Group was founded in 1819 as the first Austrian savings bank (“Erste oesterreichische Spar-Casse”). In 1997, Erste Group went public with a strategy to expand its retail business into Central and Eastern Europe (CEE). Since then Erste Group's customer base has grown through numerous acquisitions and organic growth from 600,000 to 17.7 million. 95% of all clients are citizens of the European Union.
Today Erste Group is one of the largest financial services providers in Central and Eastern Europe in terms of clients and total assets.