Key TakeawaysNokia American depositary receipts (ADRs) fell Thursday after the Finnish telecommunications company reported an unexpected second-quarter loss.Sales fell 18% from the same time last year, as Nokia's CEO cited "ongoing market weakness" that the company expects to improve in the second half of the year.Nokia also said it plans to complete its 600-million-euro stock buyback plan by the end of 2024 rather than its initial two-year timeline. American depositary receipts (ADRs) of Nokia (NOK) droppe ...