Indonesian equities and the rupiah came under pressure on Friday, September 11, 2026, as expectations grew that the US Federal Reserve could raise interest rates, according to Stockbit Snips.
The strain followed the release of US consumer price index data for August, which showed inflation unchanged at 3.4 percent, in line with forecasts, as reported by fxstreet-id.com. On a monthly basis, US inflation rose 0.4 percent, with gasoline prices cited as the main driver, according to kontan.co.id.
Bloomberg Technoz reported that the jump in US inflation data leaves room for the Fed to raise rates. Investing.com Indonesia noted that markets were watching the CPI print alongside earnings reports from Oracle and Adobe.
The combination of steady annual inflation and a monthly increase kept concerns about tighter US monetary policy alive, weighing on sentiment toward emerging-market assets, including Indonesian stocks and the currency.
What to watch next: whether Fed officials signal a firmer stance on rates in upcoming communications, and how the rupiah and IHSG respond once the US inflation reading is fully priced in.