My guess is it's probably the Asian markets panicking on the little girl that died of Bird Flu in China. They're pretty antsy lately especially after SARs hit them hard the last time and I'm assuming traders getting out of positions. I could be wrong, but that's what makes sense to me at the moment. Whats the Hang Seng doing right now? I dont have that enabled on my IB feed.
Seems too old to have had such an effect, unless Israel decided to take premptive measures, like blowing something up in Iran... could be the bird flu too...