US Stocks at Open: NASDAQ up 0.6%, memory chip stocks surge, SK Hynix rises ~12%, IBM falls ~23%

The Dow Jones Industrial Average fell 0.2%, while the S&P 500 rose 0.2%. Memory chip stocks surged, with Sandisk rising approximately 7%. Affected by IBM's preliminary Q2 revenue missing expectations, software stocks declined, with Microsoft falling about 3%. Optical communication stocks generally rose, with Marvell Technology gaining around 5%. Goldman Sachs rose approximately 4%, as the company's Q2 revenue hit a record high. Stock trading revenue refreshed Wall Street records for three consecutive quarters, and SpaceX's listing drove stock underwriting revenue to soar by 130%. Data showed that US inflation cooled comprehensively; June CPI rose 3.5% year-on-year, far below expectations, and fell month-on-month for the first time in six years, with the core CPI increase narrowing to 2.6%.