Google Is Hearing Facebook’s Footsteps - WSJ

A big day ahead for Alphabet, which announces fourth-quarter earnings this afternoon

"In the continuing battle for world domination, a cool $15 billion separates Google parent Alphabet Inc. from Apple Inc.

That is the difference between the two behemoths in terms of market capitalization. Yet investors gauging whether Alphabet’s run to market-cap supremacy has legs may be better off sizing up the search giant against another, albeit smaller, tech force: Facebook Inc.
Wall Street has cheered Facebook’s recent mobile success. Last week, Facebook said some 80% of total fourth-quarter advertising revenue came from mobile, well ahead of estimates and up from 23% just three years ago."

Google Is Hearing Facebook’s Footsteps - WSJ