But the bbc's reputation does support the facts in the article. I am confident that the stock did drop because of what he said, because i trust the BBC not to make up such things.
Going back to the top of this thread, I agree that correlation does not mean causation, but in this case, we do not yet even have a justifiable claim of correlation, and RFK Jr. has repeatedly demonstrated his propensity for substituting unfounded opinion and incorrect data for empirical facts, if it suits his agenda.