Toyota shares plunged 1.6% in early trading on the Nikkei, following the announcement of a supply issues that will cause factory shutdowns in America. Toyota gets 15% of its parts from Japanese factories, some of which were damaged in the earthquake.
Honda dropped 1.73% and Nissan was down 1.2%.
The Nikkei opened was down 0.3% after half an hour of trading.
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