The Wallenberg family’s investment company, Investor, has set a new record after outperforming the index for the 15th consecutive year, according to Dagens industri.

The Investor share rose by 14.9 percent, including dividends, compared to the Stockholm Stock Exchange’s SIXRX, which increased by 12.7 percent.

According to Di, Investor’s performance is not only an “all-time Swedish endurance record” but also the best in the world. The newspaper states it has reviewed all companies in the European large-cap index Stoxx 600 Europe and the American equivalent S&P 500, recalculated the returns to Swedish kronor, and compared them with the SIXRX index.

“The result: No other company has outperformed the index for as many consecutive years from 2011 to 2025,” writes the newspaper.

In addition to the record, Investor in 2025 also managed to surpass a valuation of over 1,000 billion kronor, a level not seen since Ericsson’s share price surge during the IT boom.

Investor has nearly 700,000 shareholders.