U.S. Dollar banknotes are seen in this illustration taken July 17, 2022.
"The market wouldn't mind some stability, it has become a little bit unpredictable," said Barings Investment Institute's Chief European strategist, Agnes Belaisch.
"We are facing difficult economic times," Truss, who only took over as UK Prime Minister this month, said on local BBC radio.
U.S. GDP fell at an unrevised 0.6% annualized rate last quarter, the government said in its third estimate of GDP.
read moreRecession angst combined with supply issues and the strong dollar meant oil prices see-sawed after gaining more than $3 in the prior session.