UPDATE 1-NORDIC STOCKS - Factors to watch on Nov 20

HELSINKI Nov 20 (Reuters) - The following stocks may be affected by newspaper reports and other factors on Friday: NOKIA (NOK1V.HE)

Nokia's telecoms equipment unit Nokia Siemens Networks and One Equity Partners are seen as a joint bidder, challenging a $526 million bid by Ciena Corp, when Canada's Nortel Networks Corp auctions its optical networking and carrier ethernet business later on Friday .[ID:nLJ292873]

For more on the company, double click on [NOK1V.HE][NSN.UL]

ATLAS COPCO (ATCOa.ST)

The Swedish compressor and machinery maker said it was focused on growth and would stick to a long-term margin target, after repeating it saw flat global demand in the near term.

The company has a long-term margin target of 15 percent and its operating margin was 15.9 percent in the third quarter.

For more on the company, double click on [ATCOa.ST]

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(Additional reporting by Copenhagen, Oslo and Stockholm newsrooms) (Helsinki Newsroom; +358-9-6805-0244)