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Here Are the U.K.'s Big Winners and Battered Losers of 2017

  • Banner years for Games Workshop, Sophos and Kaz Minerals
  • Annus horribilis for Carillion and Provident Financial
Photographer: Luke MacGregor/Bloomberg
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From Provident Financial Plc’s 66 percent plunge in a day to Carillion Plc shedding two-thirds of its value in three sessions, there’s been no shortage of drama in U.K. stocks this year.

The biggest losers of 2017 have been marked by sensational and rapid declines, while the winners -- including Games Workshop Plc’s 266 percent rally -- have been gradual triumphs. There was no unifying theme, though analysts suggested a degree of investor complacency and a lack of foreign buyers under the shadow of Brexit may have exacerbated selloffs.