Tokyo's benchmark Nikkei stock index jumped more than 2.5 percent Friday, boosted by hopes for a big election win for Britain's ruling Conservative Party, that paves the way for Brexit.

File photo: VCG

The Nikkei 225 index rallied 2.55 percent, or 598.29 points, to close at 24,023.10, the highest since early October last year. The broader Topix index was up 1.59 percent, or 27.15 points, at 1,739.98.