What Happens
As the yen appreciates, the yen value of sales earned overseas tends to shrink when converted back to yen, which is commonly viewed as a headwind for companies with a high export ratio. On the other hand, for companies that import raw materials or energy from abroad, it is commonly viewed as a factor that tends to lower procurement costs.
How to Read It, and What to Watch Out For
The direction and size of the impact that yen appreciation has on corporate performance differ from company to company, depending on factors such as export ratio, the share of overseas production, and procurement structure. A stronger yen does not guarantee a fall in any individual company's stock price — it should be treated as just one factor that can affect performance.