Overview: Shockingly poor ISM data sent shivers through the market on Tuesday and handed the S&P 500 its biggest loss in five weeks and took the shine off the greenback. The S&P 500 reached a five-day high before reversing course and cast a pall over today's activity. All the markets were lower in Asia Pacific, with China and India closed for holidays. Europe's Dow Jones Stoxx 600 reached a two-month high yesterday before selling off sharply, and it has seen follow-through selling today, with the benchmark off around 1.5%. US shares are trading softly, and