This is true. And the volatility is coming from how we's fulfilling those campaign promises - with (IMO) a fuck all care about how shit gets done and how it impacts regular people. This isn't a business he built from the ground up that he can fuck with if he wants to. This is bigger than anything he's ever conceived of doing (because reality such greater than perception).
Trump's volatility also comes form his turntable approach to his opinion. A month ago he hated the CIA, last wee he said "I love the CIA". When you can't trust a guy's word from one month to the next, all he can be considered is...unpredictable...wild...volatile.