At the rate they're going if you compare their holdings to revenue (not particularly accurate, but I'm going for an analogue to try to represent relative size),

At the rate they're going if you compare their holdings to revenue (not particularly accurate, but I'm going for an analogue to try to represent relative size), they're on track to eclipse Alphabet, AT&T and even Saudi Aramco by the end of the year. Apple, Microsoft, Google, Verizon Communications and Pfizer COMBINED hold $400B in reserves.