Last month the FTSE 100 acquired a new member, Glencore International and, to keep the numbers right, expelled its smallest constituent, Invensys.
Glencore owns a variety of stakes in unquoted and quoted resource companies, including 34% of Xstrata, a Swiss-headquartered miner which is already a constituent of the FTSE 100. Glencore also runs commodities trading and logistics businesses, which draw on information gleaned from its resource investments. The stock market valuation put on Glencore is about £36bn – not bad for a company which only began life in 1974.
The FTSE 100’s heavy weighting towards commodities has two important consequences:
The London Stock Exchange’s success in attracting listings of companies from around the globe has had some strange effects on indices. A stock market index more closely aligned with UK plc, is the FTSE 250, which covers the 250 companies immediately below the Footsie’s constituents.