Concerns over US tech debt spill over into Asian stock markets Asian markets on Oct.
Concerns over US tech debt spill over into Asian stock markets Asian markets on Oct. 23 reflected a "flight to quality," with investors growing increasingly wary of tech stock risks. © Reuters TOKYO -- Japanese bond yields fell and the yen appreciated on Friday as concerns over the mounting debt in artificial intelligence-related sectors sent investors scrambling for haven assets. The sentiment also weighed on Asian stocks.