The release of Niantic Labs' Pokémon GO in Australia, New Zealand, and the US has caused Nintendo's shares to jump 10% in value.
Its shares are now the most heavily traded by value on Tokyo's main board, and the value increase now gives the company a market value of around $23 billion.
It was also noted that IAP revenues in Australia were being generated by a large number of players spending smaller amounts, rather than big spenders.
Pokémon GO has only officially launched in three markets, so this value could well increase as the game is pushed out further across the world.
It's further evidence that Nintendo entering mobile is working well for them – it reported recently that DeNA's chat-app Miitomo had recently reached 10 million downloads.