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Are there any funds tracking INDEXDJX:REIT?
Although you can't invest in an index, you can invest in a fund that basically invests in what the index is made up of. Example: In dealing with an auto index, you could find a fund that buys car companies's stock. The Google Finance list of funds dealing with INDEXDJX:REIT Although not pertaining to your quetion exactly, you may want to consider buying into Vanguard REIT ETF I hope this answers your question.