S&P 500 SPX, + 0.28% snapped tsib-session poob streak rau hnub Tuesday, tom qab Tsoom Fwv Teb Chaws Reserve Thawj Tswj Hwm Jerome Powell tau cog lus tias lub tuam txhab nyiaj hauv nruab nrab yuav siv nws "cov cuab yeej" kom tau txais kev nce nqi raws li kev tswj hwm ...