The US30's underlying instrument is the DJIA (the Dow Jones) MINI e-CBOT. The Dow Jones Consists of 30 major American companies: AMEX, Boeing, Chevron, Coca-Cola, DuPont, GE, Goldman Sachs, Intel, IBM, Microsoft, Nike and more.
The SPX500's underlying instrument is the S&P 500 stock market index, maintained by S&P Dow Jones Indices, which comprises 500 large-cap American companies covering about 75% of the American equity market by capitalization, such as Delta, eBay, Halliburton and Yum! Brands. The S&P 500 was developed and continues to be maintained by S&P Dow Jones Indices, a joint venture majority-owned by McGraw Hill Financial that publishes many stock market indices such as the S&P Midcap 400, the S&P Small Cap 600 and the S&P Composite 1500.
The NAS100's underlying instrument is the NASDAQ100 stock market index. This index includes 100 companies from a broad range of industries with the exception of those that operate in the financial industry, such as banks and investment companies. Companies include Apple, Adobe Systems, Amazon, Cisco Systems, Google, Intel, Facebook and others.
The UK100's underlying instrument is the FTSE 100 index future. This is an index of the 100 companies listed on the London Stock Exchange with the highest market capitalization. In the FTSE indices, share prices are weighted by market capitalization, so that the larger companies make more of a difference to the index than smaller companies. Companies include GlaxoSmithKline, HSBC and Royal Dutch Shell.
The GER30's underlying instrument is the DAX index future. The DAX is a blue-chip stock market index consisting of the 30 major German companies trading on the Frankfurt Stock Exchange: BASF, SAP, Bayer, Allianz and others.
The ESP35's underlying instrument is the IBEX35 index future. This is the benchmark stock market index of the Bolsa de Madrid, Spain's principal stock exchange. This index includes 35 companies from a broad range of industries: Banco Popular, Acciona, Bankia, Bankinter, Santander, Repsol, Gas Natural, Telefonica and more.
The FRA40's underlying instrument is the CAC40 index future. This is the benchmark stock market index of the Euronext Paris: Airbus, Alcatel-Lucent, AXA, BNP Paribas, L'Oreal, Orange, Vivendi, Societe Generale, Renault, Michelin, Solvay and more.
The HKG33's underlying instrument is the Mini-Hang Seng future. This is the benchmark stock market index of Hong Kong. Four sub-indices were established in order to make the index clearer and to classify constituent stocks into four distinct sectors. There are 50 HSI constituent stocks in total, including: Hang Seng Finance Sub-index, Hang Seng Utilities Sub-index, Hang Seng Properties Sub-index, Hang Seng Commerce & Industry Sub-index.
The JPN225's underlying instrument is the Nikkei 225 Mini future. This is the benchmark stock market index for the Tokyo Stock Exchange (TSE).
The AUS200's underlying instrument is the S&P/ASX 200, which measures the performance of the 200 largest index-eligible stocks listed on the Australian Stock Exchange by float-adjusted market capitalization.
The EUSTX50's underlying instrument is the Euro Stoxx 50 Future. The Euro Stoxx 50 is an index of European listed shares is a stock index of Eurozone stocks designed by Stoxx Ltd, an index provider owned by Deutsche Börse and SIX Group and contains the largest companies in Europe—Allianz, Deutsche Bank, Inditex, Repsol, Unilever and more—and is used as a gage for the state of Europe's economy.