Because news agencies make money from attention not accurate and usable information. Also, financial market movement has so many factors that govern their movem

Because news agencies make money from attention not accurate and usable information. Also, financial market movement has so many factors that govern their movement, that in the short term it looks random but, peoples' daily need for news forces them to put a narrative to almost random short term moves. Now this movement seems clear but, I can't know and verify for sure unless I have a representative sample of trader sentiments to know why they chose to buy or sell the stock that day.