Just looked at the financial reports for both companies. It seems that Nintendo is more profitable than Sony (the entire conglomerate) in percentage terms, though both are quite low with operating margins of 6.5% and 4.5% respectively. Profitability is a key performance indicator for investors.
2016 was a generally a rough year for Nintendo (Pokemon Go excluded), so investors are likely even more optimistic now that the company appears to be back in the console game with the Switch plus displaying greater levels of openness to new business areas with mobile, cross-play etc.
It might very well be the case that PlayStation would have done better from an investors point of view if it had been an independent company. I'll have to look on the numbers for PlayStation specifically though.
2016 was a generally a rough year for Nintendo (Pokemon Go excluded), so investors are likely even more optimistic now that the company appears to be back in the console game with the Switch plus displaying greater levels of openness to new business areas with mobile, cross-play etc.
It might very well be the case that PlayStation would have done better from an investors point of view if it had been an independent company. I'll have to look on the numbers for PlayStation specifically though.