ATLASS&P/ASX 50 today: level, companies and odds
The S&P/ASX 50 closed at 8,667 (+0.01%) on Oct 26, 2026. It has 50 members and ATLAS covers 49 of them, the largest being BHP, Commonwealth Bank of Australia, and Newmont. Below: each member's price, how far it trades from ATLAS fair value and the model probability of a higher close in a month.
The S&P/ASX 50 follows the 50 largest companies listed on the Australian Securities Exchange.
Data as of Oct 27, 2026.
Index level
S&P/ASX 50 closed at 8,667 on October 26, 2026, up 0.01% on the previous session.
ATLAS breadth
44 of 49 members (90%) have a probability above 50% of closing higher in a month in ATLAS's model.
Of 45 members with a fair value estimate, 14 trade at least 8% below it and 24 at least 8% above; the median gap is +20%.
How to read it: ATLAS's calibrated model uses the same long-run drift for every stock, so the share above 50% mostly reflects how many members are calm enough (low volatility) to sit above a coin flip. It gauges how calm the index is, not where it is going.
Best and worst members on the last close
Best
| S32.AUSouth32 | A$4.26 | +3.1% |
|---|---|---|
| BSL.AUBluescope Steel | A$33.31 | +2.9% |
| NST.AUNorthern Star Resources | A$24.83 | +2.8% |
| GMG.AUGoodman | A$25.92 | +2.6% |
| EVN.AUEvolution Mining | A$11.57 | +2.3% |
Worst
| COH.AUCochlear | A$141.82 | -3.4% |
|---|---|---|
| WOW.AUWoolworths | A$40.88 | -2.1% |
| SUN.AUSuncorp | A$20.00 | -1.9% |
| WES.AUWesfarmers | A$79.03 | -1.6% |
| COL.AUColes | A$24.18 | -1.5% |
Moves are for the latest stored close of each stock.
All S&P/ASX 50 companies
Weights are each member's share of the combined market value of the 49 companies listed here: an estimate, not the official index weighting.
Sector mix
Financial Services is the biggest sector with 36% of the combined market value of the members.
How this page is built
Members: the list of companies in the S&P/ASX 50 comes from an index-data provider and is refreshed every week. Companies ATLAS does not publish (too small, no data or not listed in the country) are left out, so this page covers 49 of 50.
Price, fair value and probability come from the same stored data as each company page; probabilities use ATLAS's calibrated one-month model. The index level and daily change are for the last close of the index.
Limits: this is not the official index factsheet. Weights are estimated from market value, probabilities are not forecasts, and nothing here is investment advice.
Frequently asked questions
What is the S&P/ASX 50?
The S&P/ASX 50 follows the 50 largest companies listed on the Australian Securities Exchange. ATLAS covers 49 of its 50 members.
Which are the biggest companies in the S&P/ASX 50?
By market value the largest members are BHP, Commonwealth Bank of Australia, and Newmont. Together the top three make up 31% of the combined market value of the 49 members listed here.
How many companies are in the S&P/ASX 50?
The index has 50 members; ATLAS publishes 49 of them.
What does ATLAS breadth mean for the S&P/ASX 50?
It is the share of members whose probability of closing higher in a month is above 50% in ATLAS's calibrated model: 90% today (44 of 49). Because the model uses one long-run drift for all stocks, it mostly measures how calm the members are. It is not a forecast for the index.
Which S&P/ASX 50 stocks moved the most on the last close?
On the latest stored close, South32 rose the most (+3.1%) and Cochlear fell the most (-3.4%) among members.
Can I invest in the S&P/ASX 50?
An index is a list, not a product, so you cannot buy it directly. Funds that replicate it exist in many markets, but ATLAS does not recommend products. Check costs, taxes and currency before choosing any.
How often is this page updated?
Prices and probabilities are refreshed every day and the page is rebuilt at least every 6 hours. The member list is refreshed every week.
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Other indices
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Information only, not investment advice. ATLAS estimates come from statistical models using public data; they can be wrong, and past results do not guarantee future ones. Disclaimer