What could a Tesla-SpaceX merger earn? Cathie Wood's Ark Invest has a $2.7 trillion answer.

A combined SpaceX (SPCX) and Tesla (TSLA) would haul in some serious coin, Cathie Wood's Ark Invest said in a new note. The Elon Musk bull's firm estimated that SpaceX and Tesla could generate $3.8 trillion in sales and $2.7 trillion in operating profits by 2031, with SpaceX contributing roughly 62% and 69%, respectively. To get a sense of how bullish a call this is, Yahoo Finance data shows that Wall Street analysts expect SpaceX to post $43 billion in sales this year, while Tesla clocks in at $107 billion. "While our model assesses Tesla as a standalone business, a SpaceX-Tesla merger could take place within the next five years," the Ark Invest team said.