BENGALURU, Sept 7 Reuters Indian benchmark indexes inched lower on Thursday, weighed by worries that U.S. interest rates will remain higher for longer, while domestic focussed small and midcap indexes continued their record run.

The Nifty 50 index and SP BSE Sensex were down 0.1, each at 19,591 and 65,807 at 1032 a.m. IST.

The smallcaps and midcaps were up 0.4 and 0.4, respectively, continuing to outperform the bluechip benchmarks and hitting fresh record highs.

There is froth in the smallcap segment, which is driven by momentum, said V K Vijayakumar, Chief Investment Strategist at Geojit Financial Services.

Small and midcap stocks have risen about 31 and 28, respectively so far this year compared with 8 gains in benchmark indexes.

The U.S. dollar surged to a sixmonth high and Treasury yields rose on expectations that U.S. interest rates will remain higher for longer, while Brent crude price has surged 5 in the past two weeks.

A major concern in the market is the Brent crude rising above 90 with negative implications for Indias macros and inflation, Vijayakumar said, adding that foreign investr selling has been triggered by the rising bond yields and stronger dollar.

Foreign portfolio investor FPI inflows in Indian equities were at a fourmonth low of 122.62 billion rupees 1.48 billion in August.

Among indexes, the public sector bank index was up 0.6, while consumer index dropped 0.2, driven by 2.4 fall in Tata Consumer.

Tata Consumer had risen on over 4 on…