Supplier shares have slid. Magna, a long-time investor favourite, fell to $69.63 yesterday morning, from more than $80 early last month.

• 供应商的股价已出现下滑。周二早盘，一直得到投资者厚爱的马格纳的股价已从上月早些时候的80多美元跌至69.；63美元。