Apple's lower PE ratio compared to the industry average suggests that the stock is undervalued and has potential for growth. However, its high PB and PS ratios suggest that the stock might be overvalued based on its book value and sales performance. Despite this, Apple's high ROE, EBITDA, and gross profit indicate that the company is efficiently using its resources and generating strong profits. However, its revenue growth is significantly lower than the industry average, which could indicate a potential fall in the company's sales performance.