(Adds Archer, updates Volvo)
HELSINKI, Aug 30 (Reuters) - The following stocks may be affected by newspaper reports and other factors on Friday:
ARCHER
The Oslo-listed oil well firm reported second-quarter earnings short of expectations on Friday, dragged down by weak markets in Brazil and the United States.
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VOLVO
The world number two truck maker said shipments of its trucks rose 3 percent year-on-year in July as deliveries picked up in Western Europe and South America.
Separately, business daily Dagens Industri reported Volvo lost market share in Europe in the first half of the year compared to the same period a year earlier.
The group's market share in Europe fell 1.3 percent to 24.8 percent in the first six months of 2013, DI said, citing unspecified market statistics.
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(Additional reporting by Copenhagen, Oslo and Stockholm newsrooms)