Was tongue-in-cheek, but that's why I used the word "first". All three have turned a quarterly profit at some point (Twitter only if you discount losses from st

Was tongue-in-cheek, but that's why I used the word "first". All three have turned a quarterly profit at some point (Twitter only if you discount losses from stock-based compensation). Twitter and Tesla have not yet turned on the money spigot, so you could argue they're still startups. Amazon is a grown-ass business that can turn the spigot on anytime it wants to impress investors.