Tomorrow will likely be a different story.

...to market behavior.
That ship sailed long ago.
We need loom no further than TSLA. Market cap of around $1.05 trillion. The pretax net income ladt year was $3.8 billion. There is no rational explanation for that.

The markets have been manipulated for a long time now. The market can climb as much as it wants, but there will always be breakers to keep the market from falling, even stop trading if it looks like it may go into a catastrophic rout. That bias means that on average the market will rise over time even if no value is actually being generated, and will make companies who are part of those indexes more valuable on paper than they actually are. Couple that with overt market manipulation (which I have no doubt is being done), and you have a recipe for a market that has indexes with no connection to reality, which is where we are now.

And that's about a billion on the New York exchange alone, even with "the oligarchs and the rich" scheming around, there are an awful lot of ordinary people around the world just trying their hand at day trading and long term investing--a few million per day, I suspect. I can well imagine that individuals who are well-placed in certain industries and commodities (oil, eg) or finite physical investments (gold, Palladium, etc.), as well as central banks, who control thousands of tons of gold, and who can skew certain markets for limited amounts of time, but not forever. There are just too many other players.

I, for one, would prefer the markets do not respond at all to Trump's ravings. To a sociopath who craves attention, the greatest punishment of all is to deny it to him completely. I think a day when the news of the world does not mention his name once, anywhere, would be like the day he was denied oxygen.