Stock market today: US stocks steady as countdown to Jackson Hole begins Yahoo FinanceStocks open little changed as comeback rally pauses: Live updates CNBCTraders Need Fed’s Rate-Cut Signal to Keep Stocks Rallying BloombergDow Jones Futures Flat As Powell Speech Looms; Nvidia Rival AMD Jumps On Acquisition Investor’s Business DailySNAPSHOT Wall St opens flat with focus on Jackson Hole Reuters