Sept 11 (Reuters) - Swiss Marketplace Group's upcoming IPO on the Swiss stock exchange is set to take place on or around September 19, with shares to be sold for between 43 and 46 Swiss francs ($53.84-$57.60) apiece, major stakeholder TX Group TXGN.S said on Thursday.
SMG has begun its bookbuilding process with an estimated market capitalisation of between 4.2 billion and 4.5 billion francs, TX Group added in a statement.
($1 = 0.7986 Swiss francs)
(Reporting by Marleen Kaesebier in Gdansk; Editing by Ludwig Burger)
((marleen.kaesebier@thomsonreuters.com;))