Editing Commodity market (section)

==Commodity index fund==
A [[commodity index fund]] is a fund whose assets are invested in financial instruments based on or linked to a commodity index. In just about every case the index is in fact a Commodity Futures Index. The first such index was the Dow Jones Commodity Index, which began in 1933.<ref>{{cite journal |title=The First Commodity Futures Index of 1933 |date=19 September 2019 |ssrn=3451443 |last1=Bhardwaj |first1=Geetesh |last2=Janardanan |first2=Rajkumar |last3=Rouwenhorst |first3=K. Geert |doi=10.2139/ssrn.3451443 |s2cid=229480527 }}</ref>  The first practically investable commodity futures index was the [[Goldman Sachs Commodity Index]], created in 1991,<ref name="bub">"The Food Bubble", Frederick Kaufman, Harper's, 2010 July</ref> and known as the "GSCI". The next was the Dow Jones AIG Commodity Index. It differed from the GSCI primarily in the weights allocated to each commodity. The DJ AIG had mechanisms to periodically limit the weight of any one commodity and to remove commodities whose weights became too small. After [[AIG]]'s financial problems in 2008 the Index rights were sold to [[UBS]] and it is now known as the DJUBS index. Other commodity indices include the Reuters / CRB index (which is the old CRB Index as re-structured in 2005) and the Rogers Index.