Foodstuff company Kraft Heinz has been badly hit on Friday at the opening of the stock exchanges in New York. Investors have put the food business more than a quarter lower, because the company suddenly came up with a billions write-off. The overall sentiment on Wall Street was slightly positive. Kraft Heinz lost almost 27 percent of market capital in the first trading minutes. The company behind, among others, Heinz Tomato Ketchup, Brinta, Honig, Venz and Roosvicee, deducted more than $ 15 billion on the value of a number of its brands, leaving a quarterly loss of $ 12.6 billion in the books. Meanwhile, the American stock market watchdog Securities and Exchange Commission (SEC) has announced that it is doing research into the company’s accounting. Kraft Heinz also cut in his dividend. The Dow-Jones index recorded 0.4 percent in the plus on 25,941 points shortly after the opening bell. The broad S & P 500 went up 0.3 percent to 2782 points. Fencing Nasdaq also won 0.3 percent, up to 7483 points. Optimism about the relationship between China and the US contributes to the positive tenor on Wall Street. President Donald Trump has repeatedly called for a Chinese delegation at the White House on Friday to discuss any trade deal.