The S&P 500 ended marginally down, with Microsoft dipping and Meta rising, as uncertainty about the Middle East lifted oil prices and Treasury ‌yields ▻ ↧ S&P 500 ends marginally lower as investors focus on US-Iran war The S&P 500 ended marginally ​down on Thursday, with Microsoft dipping and Meta Platforms rising, as uncertainty about the Middle East lifted oil prices and Treasury ‌yields.