Guardian.UK: Trump's tweet about Lockheed-Martin cuts $4bn in value as share prices fall.

Trump’s tweet sent the price falling from $252 to $246 – a loss of about $28.6m per character tweeted.

At a certain point, we have to ignore what he says ... and yet we cannot, because of the power he wields. The next four years are going to be even more punishing than the eight years of the Clinton '90's.