Production plans remain optimistic with readings above the 60-level.
"Temperature increase in industry", writes Swedbank and Silf in a press release.
The index is a value measure for the business cycle in the Swedish manufacturing industry.
An index value above 50 indicates increased activity in the sector, while a value below 50 indicates decreased activity.
"The temperature in Swedish industry has increased during the fourth quarter and is now at index levels that have not been noted in over two years, although the risk of increased tariffs and weak global economy may put a spanner in the works", says Jörgen Kennemar, responsible for the analysis of the purchasing managers' index at Swedbank, according to a press release.
"A higher price increase pressure in industry, while the krona depreciation drives up companies' purchasing costs, is something that the Swedish Central Bank should consider ahead of its next monetary policy decision", he adds.