Another partial explanation is that the dollar hit several key levels against the yen, which set off automatic selling.
2.
When prices fell below $ 331.80, that triggered automatic selling orders by major commission houses, and everyone starting piling in.
3.
When prices fell below $ 331 . 80, that triggered automatic selling orders by major commission houses, and everyone starting piling in.
4.
The dollar's decline against the mark was exaggerated by a round of automatic selling orders which were triggered when the dollar fell to about 1.4390 and 1.4380 marks, a trader at Sanwa Bank said.
5.
The dollar's decline against the mark was exaggerated by a round of automatic selling orders which were triggered when the dollar fell to about 1 . 4390 and 1 . 4380 marks, a trader at Sanwa Bank said.