It's definitely too early to draw conclusions, but unfortunately many people may be making wrong decisions due to the irresponsibility of media. It seems that we will be able to speak more properly about the effects of tariffs next Wednesday, but speculation is wreaking havoc.
businesses cannot trade their own stock in response to their own internal information, as thats insider trading. and so the "going red" is not due to the companies actual performance or value. 
businesses wont release info about the impact due to tariffs until they do their Q2 financial results in ~july
that then shows how tariffs have cost/benefitted the business
until then its just speculation. where investors and media(outsiders) are guessing how something may be bad or good depending on sentiment, emotion and guesses
media and outsiders can gain some info.. such as if General Motors is re-vamping their car assembly plant and by late april THIS YEAR(only a couple weeks away) they will be back in production of assembling more "us made" cars.. 
where as if stellantis is spending alot of money to take 2 years to create a whole entire 'from foundation' full manufacturing facility in america. meaning new model stellantis cars in america wont happen for 2 years.. then outsiders can speculate more green sooner for GM and more red for Stellantis for longer