Engineering contractor Monadelphous Group will become the eighth Western Australian company included in Standard & Poor’s ASX 100 index when trade resumes on Monday.
The other WA companies on the ASX 100 are Atlas Iron, Fortescue Metals Group, Iluka Resources, Paladin Energy, Seven West Media, Wesfarmers and Woodside Petroleum.
The index is based primarily on the market capitalisation of companies, as well as liquidity and "free float".
Monadelphous shares closed up 3.2 per cent today, at $18.49.
