The iShares MSCI All Country Asia ex Japan ETF tracks a diversified basket of Asian equities, spanning both developed and emerging markets.On Wednesday, Zurich-based BFI Infinity Ltd. disclosed a buy of 132,421 shares of the iShares MSCI All Country Asia ex Japan ETF (AAXJ +0.74%), an estimated $12.30 million trade based on quarterly average pricing.What happenedAccording to a SEC filing published Wednesday, BFI Infinity Ltd. bought 132,421 additional shares of the iShares MSCI All Country Asia ex Japan ETF ...