Stock market today: S&P 500, Nasdaq jump higher as key inflation data comes in cool Yahoo FinanceTraders see big drop in interest rates, at risk of underestimating inflation MarketWatchDow jumps 300 points as first of two major inflation reports this week comes in light: Live updates CNBCWall St jumps as softer producer prices data boosts rate optimism ReutersProducer Inflation Data Were Weak. How the Fed Might Respond. Barron’s