After a few minutes of trading, the stock exchange's broad OMXS index is up 1.1 percent.
On the OMXS30 large-cap list, engineering companies Atlas Copco and Sandvik each rose 2 percent. Major banks Swedbank, Nordea and SEB are trading ex-dividend and fell between 4 and 8 percent.
The oil price is falling - a barrel of North Sea oil costs $99. The price of gold is rising slightly to just over $4,500 per ounce.
