July 15 (Reuters) - Activist investor Starboard has a position in Tinder owner Match of more than 6.5% and is pushing for a possible sale if a turnaround isn't successful, the Wall Street Journal reported on Monday, citing people familiar with the matter.

Shares of Match rose nearly 9% in extended trading following the report.

Starboard believes Match should improve Tinder, which represents more than half of the company's total revenue, and also sees opportunities for the Hinge business among other emerging apps, according to the report.

It also believes Match should consider going private if it fails to make the changes, including more aggressive share buybacks, the report added.

Starboard and Match did not immediately respond to Reuters requests for comment.

Activists investor

Elliott

has pushed for improvement in Match's performance and also named Instacart executive Laura Jones and Zillow co-founder Spencer Rascoff to its board in March this year.

Investment firm

Anson Funds Management

had also amassed a stake and was pushing Match to refresh its board, Bloomberg News reported in March.

Match offers dating apps - including Tinder, Hinge, OkCupid - and has been grappling with

slowing revenue

due to weaker discretionary spending by users in an uncertain economy. (Reporting by Urvi Dugar in Bengaluru; Editing by Alan Barona)