By Philip Elmer-DeWitt
July 29, 2013

FORTUNE — In November, the last time we compared Apple’s (AAPL) and Amazon’s (AMZN) price-to-earnings ratios — the simplest and most widely used metric to gauge the relative  value of a pair of stocks —  Apple’s trailing PE was 13 and Amazon’s was 2,767.

We haven’t been able to repeat the exercise because while Apple PE has drifted with its stock price to between 10 and 11, Amazon’s trailing PE has reached, as Buzz Lightyear might put it, infinity and beyond. (Or, as the stock charts politely have it, NA.)

That’s because Amazon, which reported its June earnings on Friday, hasn’t turned a profit for three quarters in a row — a performance that Wall Street rewarded by pushing its stock to an all-time-high of $312.01.

It will come as no surprise to readers here that Apple, which posted record fiscal Q3 sales (but lower earnings) three days earlier, couldn’t catch more than a one-day break on the stock market.

That’s because as far as Wall Street is concerned, Apple and Amazon are in completely different businesses. As a regular on Investor Village’s AAPL Sanity board who calls himself “djt” put it last week:

“The Street sees Amazon as the world’s biggest (online) global retailer with almost limitless growth. [It] sees Apple as a (mobile) device maker that because it is wholly dependent on its ability to innovate nonstop, expand its (ultimately saturated) markets while fighting off competition and controlling its very unstable supply chain, has limited growth.”

To underscore just how much Wall Street loves Amazon and hates Apple, the reader who posts as “Merckel” has submitted for your consideration nine bar graphs and a five-year sales chart:

 

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