Pokémon Go has proved an unprecedented success since the game has been rolled out in regions across the world from the beginning of the month. Along with the game's developers, Niantic Labs, as well as Pokémon card collectors, the arrival of the mobile game has also reaped benefits for Nintendo.

That changed this past Friday, however, as Nintendo sent out a statement to its shareholders and investors stating that it only owned a 32% stake in the company that developed Pokémon Go. It also added that earnings from part-ownership of the game's developer might yield less revenue that some may be projecting.  

This has resulted in a staggering drop in shares, as reported by Bloomberg, with its stock dropping by 18% at its lowest point. That mark is also the most significant decrease in the company's stock since 1990. Nintendo noted to relevant shareholders that Pokémon Go is a "collaboration" between itself and Niantic Labs, and not a game that Nintendo solely owns. As such, an estimated 17% of the earnings from in-game purchases, along with sales of the Pokémon Go smartwatch will be coming Nintendo's way, according to Bloomberg.

Precisely why the sudden drop in stocks occurred is a little confusing, especially as Bloomberg notes that investors and shareholders should have been well aware that Nintendo did not in fact make the Pokémon Go game, nor own the entirety of Niantic Labs.

Nevertheless, the game will still prove popular in months to come. It should be interesting to see if Nintendo can bounce back from this latest setback. Hopefully Legend of Zelda (one of the best looking games from E3 2016) and the NX console will aid in that respect.