Japanese stocks in Tokyo rebounded sharply today, following Tuesday's near 11-percent crash.
The benchmark Nikkei index rose 5.7 percent, as investors continued to watch the dramatic events unfolding at Japan's Fukushima nuclear plant, and whether beleagured officials will be able to avert catastrophe.
Stocks across Asia were also mostly higher. They rebounded in Europe, too.
But Wall Street appears headed for another weak start, and investors worldwide remain on edge as Japan teeters on the brink of nuclear disaster.
"Uncertainty in the Fukushima nuclear power plant is clearly making market participants very nervous," Kazuhiro Takahashi, general manager at Daiwa Securities Capital Markets in Tokyo told Reuters.
Uncertainty, too, over how all of this will affect this global economy is also driving fear, caution and worry.
Yes, there's plenty to worry about.