ARKK is trading at $84.51, down 3.05%, as hotter-than-expected September inflation lifted Treasury yields and Fed rate-hike concerns. - September CPI rose 3.7% year over year, above the 3.6% forecast; core CPI also exceeded expectations. - Higher yields are pressuring rate-sensitive growth and technology stocks, while semiconductor weakness and AI-spending worries add headwinds. - Broader markets are lower in a macro-driven risk-off move; intraday volume data was not provided.