The decline in Stockholm was broad. The stock market has fallen over 5 percent since April 20 but is up 1.2 percent since the turn of the year.
Swedbank and SEB rose 0.5 and 0.2 percent, respectively, while Volvo Cars - which also opened the books - fell 3.9 percent.
Mining equipment company Epiroc rose 7 percent.
Several index-heavy stocks were traded without the right to dividends, which weighed on the indices.
The stock exchanges in Frankfurt, London and Paris are also falling, as are all three major indexes in New York.
The oil price is up 5.7 percent on the day, and a barrel of North Sea oil now costs $117.60.
