Property tycoon Vincent Tchenguiz has made a A$1.13 bn (EUR 677 mln) unsolicited bid for Australia's Challenger Infrastructure fund (CIF). The A$3.50 (EUR 2.09) per share offer, unveiled by Tchenguiz on Tuesday, is being made through Australian investment vehicle Arkmile, a subsidiary of Tchneguiz's Consensus Business Group. CIF’s share price has slumped in recent months and the stock was trading at around A$2.38 before Tchenguiz’ bid.