Acid test looms for 'Alibaba IPO effect' theory By: CNBC.com News September 11, 2014 at 09:38 AM EDT The theory, still debated, is that Alibaba is such a gigantic offering that it is reducing interest in other IPOs anywhere on or near the horizon. Read More >> Related Stocks: Alibaba Group Holding Ltd Bhp Billiton Ltd ADR Freeport-McMoRan Grupo Aval Acciones Y Valores S ADR Rio Tinto Plc ADR Southern Copper Corp