Umm, wat. Alphabet has two classes of shares that trade under different ticker symbols, GOOG and GOOGL. Together they add up to $1.6t. The fact the author has overlooked this is astonishing.
[edit: sorry, my mistake: the market cap reported is not actually outstanding shares times price, pointed out below]
[edit: sorry, my mistake: the market cap reported is not actually outstanding shares times price, pointed out below]