Dow hits record high, declining volatility: Trading takeaways Yahoo FinanceStock market today: Dow jumps over 300 points to hit fresh record, lead stock rebound Yahoo FinanceS&P 500 Gains and Losses Today: United Airlines Soars on Strong Earnings, $1.5B Buyback InvestopediaFutures Fall; Huge Earnings For Chip Sector On Tap Investor’s Business DailyDow climbs 300 points to another record close on Wednesday: Live updates CNBC