As the first part, I think you are confusing between profit and share price. They have to cut expense if they are making net loss or are in cash flow negative.

As the first part, I think you are confusing between profit and share price. They have to cut expense if they are making net loss or are in cash flow negative. Which is quite different from share price. And as of your second part. Why would not FB have billions of dollars at their disposal if their share price tanks? They sold the IPO and already have got that cash in their bank account. They won't gain a single dollar if the share price rises neither won't they lose a single dollar if it tanks. But is there an indirect relation besides the obvious? That's what the original poster asked. Your answer didn't reply it.