Nintendo's shares fell by 18 per cent on Monday morning, putting an end to the company's meteoric rise following the launch of Pokémon Go, after the company told investors that the smartphone game's wild success is not as valuable to the Japanese company as thought.

After markets closed on Friday night, Nintendo released a stock market statement in which it said that Pokémon Go, which has become the highest-grossing app in most of the countries it has been released in, would only have a "limited" impact on Nintendo's profits.

The reality check comes after Nintendo's shares doubled in the two weeks since Pokémon Go was first released. The game, in which players must venture out in the real world to catch animated monsters superimposed onto reality using a phone's camera, has had the most popular debut of any app ever released.