Rio Tinto 52-week high wobbles ahead of Monday open
Rio Tinto plc starts the week on its back foot, as its London shares dropped 4.76% Friday to 7,766 pence, a bigger loss than the FTSE 100’s 1.71% drop and dragging the miner back from its highest level this year. London Stock Exchange closed for the day, with trading hours running Monday through Friday, 0800 to 1630 local time. That leaves Saturday’s issue: what happens to a stock after it snapped sharply lower from a new high.