The development is the same as on the leading European markets and initially on the New York Stock Exchange, there is a broad decline.
Investors are worried about the consequences of President Donald Trump's policy as well as a possible recession for the US economy. The American major bank Morgan Stanley has warned during the day that the New York Stock Exchange may fall another 5 percent during the first half of the year.
"Not surprising"
The reasons for the decline are not surprising, according to Peter Malmqvist, an independent stock analyst. Everything is actually about the US.
When stock companies in the US are highly valued - because they are expected to continue developing very well - then the stock exchange naturally becomes much more sensitive, he says.
Malmqvist also points out that the tariffs imposed by the US President Donald Trump, which are then withdrawn and re-imposed, affect and create uncertainty.
Among the companies that are going against the stream on the Stockholm Stock Exchange are the heat pump manufacturer Nibe and the hygiene company Essity, which rose 4.0 and 3.3 percent, respectively. Also, among the stronger ones was the clothing giant and index-heavy H&M, plus 3.0 percent.
The news agency Bloomberg has analyzed payment card statistics on the American market, indicating strong sales for H&M in recent months.
Boliden at the bottom
In the opposite direction, among others, the mining company Boliden fell 3.9 percent. The investment company Kinnevik lost 3.2 percent after the competitor Traton, including Scania, reported quarterly figures. Traton, in turn, fell 2.3 percent.
On the currency market, the dollar strengthened slightly against the Swedish krona, and one dollar now costs around 10.12 kronor.
At closing time in Stockholm, the leading stock exchanges in Europe fell - Frankfurt 1.8 percent, London 1.0 percent, and Paris 1.0 percent.