Wallenberg's holding firm "discharged from the Emergency Room".

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Investor AB, the Swedish publicly traded industrial holding firm controlled by the influential Wallenberg family, said its investments in the bank SEB and compressor maker Atlas Copco boosted its net asset value during the third quarter and that it sees "strong" growth potential in Asia and Latin America.

Its its closely-watched net asset value amounted to 200 kronor ($30) per share on September 30, up from 195 kronor at the end of the second quarter. Since the turn of the year the net asset value has increased, with dividend added back, 9 percent.

The holding firm's core investments contributed positively to net asset value in the quarter, mainly driven by SEB and Atlas Copco. The main negative contributor during the quarter was Ericsson.

The company's performance is considered a reliable indicator of the state of the Swedish economy as it has stakes in nearly all of Sweden's major companies. Among Investor's main holdings are Swiss-Swedish engineering group ABB, the bank SEB, white goods maker Electrolux and the world leader in telecoms networks, Ericsson.

"The markets have remained unsettled during the quarter", the holding firm's CEO Börje Ekholm said. "Even though we have been discharged from the Emergency Room after the financial crises, the rehabilitation process continues. Many Western economies are struggling with sub-par growth, which is not surprising, as we are paying for the debt-doped growth of the last decade".

Börje Ekholm is also very optimistic about growth in Asia and Latin America.

“It is easy to be optimistic about Asia and Latin America and thus to companies with exposure to those regions, but we must not forget that high-growth economies historically have been prone to overheating and we should be prepared for setbacks,” he said. “The long-term outlook is, however, strong. Up until some 200 years ago, China was the world’s dominant economy -- time for ‘Back to the Future!’”

Net profit in the three month period was 4.88 billion kronor compared with 12.52 billion kronor the same period a year earlier.

A Stockholm-based equity analyst told the Dow Jones newswire the figures were in line with consensus estimates, with the net asset value per share spot on. "Nothing really stands out, except a small negative currency effect on some of their holdings. Everything seems to be according to plan," the analyst said.