The shares are likely to stay at a record because of high copper prices.
The size of the outlook revision, unseen in recent years, was a big surprise. Profit margins are dropping.
The companies' sentiment on the global market outlook appears to have suddenly turned pessimistic. A long recovery trend in their share prices continuing since 2002 could now have been snapped.
The acquisition of the copper mine at a time when metal prices are rising will benefit the company.
