How many companies are in the ASX 200?

200 — the largest listings on the Australian Securities Exchange by free-float market cap.

How often is the index rebalanced?

Quarterly, in March, June, September, and December.

S&P/ASX 200 API — Standard & Poor's / ASX 200 Data for AI Agents

About the S&P/ASX 200

The S&P/ASX 200 is the most widely followed Australian equity index, covering approximately 80% of the ASX's total market capitalisation through its 200 largest and most liquid constituents.

Notable Constituents

A sample of the largest companies in the S&P/ASX 200 — all available via the Stock Market API.

BHP

BHP Group

CBA

Commonwealth Bank

CSL

WBC

Westpac

NAB

National Australia Bank

MQG

Macquarie Group

WDS

Woodside Energy

TLS

Telstra

API coverage for the S&P/ASX 200

Fetch the index membership list or query any constituent's data directly.

Index Members

List every constituent currently in the index.

GET /api/v1/indices/SPASX200

Constituent Financials

Full income statement, balance sheet, and cash flow per company.

GET /api/v1/companies/{ticker}/financials

Start querying S&P/ASX 200 data

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Frequently Asked Questions

How many companies are in the ASX 200?: 200 — the largest listings on the Australian Securities Exchange by free-float market cap.
How often is the index rebalanced?: Quarterly, in March, June, September, and December.
Who administers the index?: S&P Dow Jones Indices.

S&P/ASX 200 — Standard & Poor's / ASX 200