The broad OMXS index closed at 2.6 percent, after touching 4 percent earlier in the day.

Thus, the Stockholm Stock Exchange is at the highest level ever, and erases the old historical record from October 12 this year.

Some of the major European stock exchanges are lifting even more.

The Paris Stock Exchange is up over 7.5 percent.

Vaccine message behind the rise

The announcement from Pfizer and Biontech that they have developed a vaccine that is 90 percent effective in preventing covid-19 is the basis for the increase.

- It is more than you have dared to hope for.

If we can have such an effective vaccine ready soon, it will be positive for both growth and the stock market, says Maria Landeborn, senior strategist at Danske Bank.

The majority of heavyweights rose sharply.

The clothing chain H&M ended up at the top among large companies with an increase of almost 9.9 percent.

The SAS share rose by 24.4 percent.

- Now the probability increases that we have a vaccine in place in the relatively near future and thus be able to return to a more normal life with more normal habits.

That is why we saw gains in these extremely pressured shares such as Scandic, Pandox, H&M and SAS.

Optimal election result

The outcome of the US presidential election, in which Democrat Joe Biden was elected new president, but probably without a majority in the Senate, is also seen as an optimal situation from a stock market perspective.

- Biden wants to implement large stimuli that in the long run will boost growth.

But the part of Biden's policy that the market does not like is the tax increases.

If he does not get a majority in Congress, his chances of implementing tax increases are very small and the stock market likes that.

Raised corporate taxes had directly affected the profits of American companies, says Maria Landeborn.

Oil price up

On Monday, the oil price also rose sharply, plus 7 percent, while gold fell as the world's investors see clear lights in the corona tunnel and thus adopt a more risky investment strategy in the hope that the economy will turn around.

At home, the krona strengthens to the strongest level against the dollar in 28 months and now costs 8:58, writes Reuters.