It's been an erratic year for the stock market. Through everything that's happened so far, the broader benchmark S&P 500 is down about 6%, although much more from highs the market reached in mid-February.

For a while, the theory that Donald Trump would avoid doing anything that tanked the stock market—named the “Trump put” after an options contract that can protect traders from downside losses—seemed to have failed catastrophically.

The stock market under Trump has seen one of its worst performances on record in the first 100 days of a U.S. presidency. It’s the worst start to a year since Gerald Ford took over for Richard Nixon 50 years ago,