CNBC Daily Open: Markets finally get a calm weekend; Nvidia and SK Hynix announce massive memory deal

A view of destroyed buildings in an area hit by a U.S. airstrike during the U.S.-Israeli military campaign in Tehran, Iran, on July 21, 2026, amid renewed conflicts between Iran and the United States in southern Iran. Morteza Nikoubazl | Nurphoto | Getty ImagesHello, this is Hui Jie writing to you from Singapore. Welcome to another edition of CNBC's Daily Open.It's been a relatively calm weekend, with a pause in the fighting in the Middle East instead of an escalation.But that doesn't mean all is smooth sailing. Ukraine, in a far-reaching strike, hit an Iranian commercial vessel, while the Trump administration dealt with tariff lawsuits at home.Nvidia raced to secure more memory from SK Hynix in a deal that could be up to $500 billion, which could serve as a catalyst for the stock that has fallen heavily in the last month.But one of our European reporters asks what might be the most important question today: Why is chocolate so expensive?What you need to know todayInvestors had a calm weekend on the Middle East front, after a pause in the Iran war sent oil prices lower and stocks higher, giving investors a welcome break from the resumption of hostilites between Tehran and the U.S.B...