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Why does BlackRock's XIN page show XIN as having only 1 holding?
On BlackRock's XIN page under Key Facts it says the number of holdings as 1. Looking at the top 10 holdings shows EFA as the number 1 holding with a 101% weighting. XIN is "iShares MSCI EAFE Index ETF (CAD-Hedged)", so it takes the underlying component and hedges it to CAD.  The underlying component is an ETF itself, EFA, so they only need to hold that one component (since that is the MSCI EAFE Index ETF). How is it possible to hold over 100%? Take a look at the full list of holdings.  While EFA is the only underlying security (e.g. ETF, Stock, Bond, et.c), the remaining holdings (looks to be 133 remaining holdings) are cash positions.  Some of those positions are negative for hedge purposes.  Because of this, the total value of the portfolio is less than the position of EFA itself (since total value is EFA plus a bunch of negative entries); because the total value is less than EFA itself, EFA has a > 100% weighting.