Megadon,
Love that you are giving investment lessons to IJ Reily. He is basically a trader, so he probably has those points covered.
I wouldn't use the Apple stock price and PE ratio as an example of how the Market has Apple figured out. That is because we have clear evidence that the market got Apple RADICALLY wrong for about the last ten years. The market is getting a stock right when the stock stay static. But when it grows, the Market is saying that the earlier prices were too low.
I don't recall giving him advice on what he should do or not, but we have a difference in opinion or investment strategy.
I believe that the sector and industry, (consumer goods and electronic equipment) is actually a big part on where the stock is going. You don't have to agree, but you can do your own research and come to your own conclusions.
I only use PE to see how expensive a stock is compared to its peers.
It is important for a trader to know which industry groups are currently experiencing strength or weakness in a given time period, and you should understand how that sector or industry group typically performs in the current stage of the economic cycle. Within the overall market there are periods when some sectors are stronger or weaker than others, and stocks in the same industry are even more likely to move in the same direction
Then when it gets into financial analysis, financial ratios and measures are best compared with other companies in the same industry. Different industry groups will move in different directions depending on what part of the economic cycle you are currently experiencing. And companies in different industries can have very different capital needs. That means they will probably have very different financial structures.
So for me, if I'm thinking about investing in company like apple or google, I'm not going to compare the financial of exon mobile to see if its a good decision.
But this is all personal investment strategy.