The stock markets ended on a very sour note as concerns about a recession accelerated. The Dow fell 246 points to 12,606. The S&P 500 lost 19 points to 1,401. The Nasdaq fell 48 points to close at 2,439. Marketwatch reports that the Dow industrials are down 558 points in 8-day run and the Nasdaq is off 8% since year began.