U.S. stocks finished mostly lower Wednesday to start March as key manufacturing data offered mixed results and two Federal Reserve officials suggested a more aggressive rate-hiking campaign in the coming months. The S&P 500 (^GSPC) declined by 0.5{515baef3fee8ea94d67a98a2b336e0215adf67d225b0e21a4f5c9b13e8fbd502}, while the Dow Jones Industrial Average (^DJI) was flat. Contracts on the technology-heavy Nasdaq Composite (^IXIC) fell by 0.6{515baef3fee8ea94d67a98a2b336e0215adf67d225b0e21a4f5c9b13e8fbd502}. The yield on the benchmark 10-year U.S. Treasury note moved upward and briefly touched 4{515baef3fee8ea94d67a98a2b336e0215adf67d225b0e21a4f5c9b13e8fbd502} Wednesday. Crude oil traded higher, with U.S. benchmark WTI up at $77.73 a barrel. On the economic data side, U.S. manufacturing firms signaled a grim outlook for the sector, according to the latest PMI data from S&P Global.…