[coliveira]

> "Siemens is an investment bank that happens to own

All conglomerates are like this, the clearest example is Berkshire Hathaway.

[guyzero]

Exactly. Why not break up Berkshire?

[perl4ever]

I vaguely think people have written how having the insurance business attached to the others is a useful/complementary structure, compared to a regular mutual fund or something.

Maybe you could ask from the opposite perspective, why aren't all mutual funds organized like BRK?

[martin_bech]

Berkshire is for all intents broken up, everything operates independently.