OMX Helsinki 25 Index Hits One-Month Low as Stocks Slide Finland’s OMX Helsinki 25 index dropped 1.06% on Wednesday, marking a one-month low due to declines in technology, healthcare, and industrial sectors. TietoEVRY Corp led the losses with a 7.17% drop. Meanwhile, Fortum Oyj and Kesko Oyj posted modest gains, rising 0.88% and 0.78%, respectively.23