LONDON, May 6 (Reuters) – Greece on Wednesday won a London court ruling on its plans to ‌buy back GDP-linked securities issued to holders ‌of government bonds as part of the country’s 2012 sovereign debt ​restructuring.

Greece had told its investors that it wanted to repurchase all of the outstanding warrants due in 2042 for a call price of just over 25 cents on ‌the euro.

The country ⁠applied to London’s High Court for declarations that it had validly exercised its option ⁠to purchase all of the GDP-linked securities and that its calculation of the call price was lawful and ​binding.

A group ​of investors, represented by ​law firm White & Case, ‌disputed that Greece had validly exercised its option to buy back the securities or calculate the call price.

But Judge Robert Bright ruled in Greece’s favour, a decision which could be challenged on appeal.

Greece’s finance ministry and ‌White & Case did not immediately ​respond to a request for ​comment.

GDP-linked warrants are fixed ​income instruments that usually pay out ‌once economic growth exceeds a ​certain threshold. They ​can be highly illiquid and complex to value.

Argentina and Ukraine have issued similar instruments to the ​Greek GDP warrant ‌in debt restructurings.

(Reporting by Sam Tobin; additional reporting ​by Karin Strohecker and Lefteris Papadimas in ​Athens; Editing by Louise Heavens)