S&P/ASX 200 definition

The S&P/ASX 200 is Australia's headline stock index, tracking the top 200 companies listed on the Australian Securities Exchange and weighted by float-adjusted market capitalisation. It is the main benchmark for Australian large- and mid-cap shares.

Membership is based on size and liquidity and is reviewed regularly, with the largest companies carrying the most weight. The index leans heavily on financials and materials, reflecting the big banks and mining companies that dominate the Australian market.

Traders watch the S&P/ASX 200 as a read on the Australian economy, and it is sometimes confused with the broader All Ordinaries, which holds many more companies. You can take exposure through an index CFD, which tracks the index level without owning the underlying shares.

S&P/ASX 200 Example

You expect Australian shares to rise, so you go long an index CFD that tracks the S&P/ASX 200. Say the index is at 7,800.

The index climbs to 7,860, a gain of 60 points. Your profit is the 60 points multiplied by the value per point of your contract.