Shares in Finland's biggest company were down by over 11 percent on Helsinki's OMX stock exchange on Monday, the first day of trading after a three-day weekend.
The stock ended the day at 1.71 euros, the lowest since Finland adopted the common currency.
Late on Thursday, Nomura analyst Rick Sherlund told Reuters that said Nokia's software partner Microsoft is looking at making its own smartphone.
Such a move would mean more competition as well as an awkward position for Nokia, which has placed all its bets for a turnaround on Microsoft's software.
Other analysts have also said the exclusion of Nokia's existing Lumia phones from Microsoft's new software, Windows Phone 8, may weigh on sales in coming months although the improvements may boost sales of future Lumia phones.
Samsung's positive surprise
There was further pressure on Nokia as rival Samsung upped its forecast for sales of its new Galaxy S III phone. Samsung also predicted handset earnings would be higher in the current second quarter than in January-March, countering market concerns that tight supplies would pressure earnings.
Last week Nokia began redundancy talks aimed at slashing its worldwide workforce by 10,000, with nearly 4,000 jobs to go in Finland.
Oulu & Salo need new employers
Labour Minister Lauri Ihalainen told Yle on Monday that more efforts must be made to attract foreign employers to the hardest-hit towns of Salo and Oulu. He noted that there are some 6,000 highly-trained IT professionals in two cities either looking for work or at risk of losing their jobs. Ihalainen added that Oulu and Salo also have excellent vacant space available and reasonable cost levels.
Latest in: News
Former PM: SDP like the Centre of the 70s
Former Centre Party chairman and Prime Minister during the early 90s, Esko Aho, says he sees parallels between the position of the Social Democratic Party today and that of Centre of the 1970s when his party faced the impact of economic change.
Two collisions in Pirkanmaa injure eight, five seriously
Two separate, but nearly identical head-on collisions in Pirkanmaa on Saturday injured eighth people, five of them seriously.
Fake cops steal from tourists
Three men, two posing as policemen, on Friday scammed a group of Brazilian tourists in Helsinki out of several thousand euros.
Pussy Riot members cancel appearances, whereabouts unknown
Weekend performances in Helsinki by two members of the Russian political performance group Pussy Riot, as well as scheduled interviews, were cancelled on Saturday. According to a web posting on the group's site late in the day, the two had no intention of performing in Helsinki. Organizers say otherwise.
STX Turku begins building TUI cruise liner
STX Turku had something to celebrate for a change, as the construction of a cruise liner for the German shipping company TUI kicked off at the shipyard.
Greens gather for party convention
This weekend, the Green League is holding its party convention in Helsinki and Espoo. Ville Niinistö will continue at the helm of the party.
More younger people, women and foreigners caught drink-driving
A new study shows an overall decline in driving under the influence -- and a change in the profile of those involved.
Pre Helsinki aims to uncover up-and-coming Finnish fashion designers
A new fashion event launched in the Finnish capital, Pre Helsinki, is aimed at raising the international profile of young home-grown designers.
Animal rights activists cleared of pig-farm video charges
Nearly all charges have been dropped against animal rights activists who secretly filmed cases of neglect at pork farms.
More Finnish kids opt to study English than native languages
English remains by far the most-studied foreign language in Finnish comprehensive schools.