Friday's session closed with the dollar retreating from a four-week run of gains, as a pullback in Treasury yields combined with measured commentary from Federal Reserve Chair Kevin Warsh proved enough to offset an inflation reading that had come in above forecasts. The euro found firmer ground, while results across Asian currency markets pointed in different directions.

Tracking the dollar's performance against a basket of six major currencies, the DXY index slipped to 101.79 — a 0.3% drop on the session that pushed its accumulated weekly retreat to 0.4%. Trader attention in currency markets stayed anchored to Federal Reserve rate-path projections in the wake of September's price data.

Headline consumer prices climbed 3.7% on an annual basis, with the core measure — which strips out food and energy — posting a 2.6% gain. A 20.4% jump in energy costs over the prior twelve months added upward pressure to the broader price environment. On an annual basis, the Producer Price Index posted a 6.3% gain — a pace not seen since December 2022.

Warsh's decision not to hint at further monetary tightening during a joint International Monetary Fund and World Bank forum held in Bangkok pulled market confidence in an October rate move from the Federal Reserve back toward neutral. Trader expectations for a 25-basis-point hike slipped to around 17%, down from roughly 28% the session before, based on CME FedWatch data.

Warsh's reticence on hawkish monetary policy led Macquarie strategist Thierry Wizman to assess that the Fed would likely leave borrowing costs unchanged at its upcoming meeting. Anxiety over corporate debt-loading to finance AI infrastructure nudged investors into US Treasury bonds, a movement that pushed yields lower and stripped the dollar of a notable prop.

By Friday's close, the euro had gained 0.2% against fellow European currencies, wrapping up its first weekly advance in six — a turnaround that came after the currency retreated from a low it had not touched in 17 months. Lagarde, in her role leading the European Central Bank, put forward the position that France's budget shortfall — running at 5.4 per cent of gross domestic product — is a matter for French authorities to resolve at home.

Currency trading across Asian markets pulled in opposite directions during the session. MSCI's proposal to reclassify Indonesia from Emerging Market to Standalone Market status — citing concerns over investment accessibility and governance — pushed the rupiah down to 18,064.9 against the dollar. Jakarta's benchmark equity index shed 11% in the wake of the announcement, with observers noting the prospect of overseas investment withdrawing from the market.

On Friday, the rupee touched 95.237 against the dollar, yet the week as a whole delivered the currency its strongest seven-day stretch since early April. A dollar-supply channel directed at state-owned oil importers, alongside tightened controls on foreign exchange derivative activity, formed part of the Reserve Bank of India's toolkit for steadying the rupee. At the same time, those steps drew complaints from traders about thinner forward markets and steeper costs for companies trying to protect themselves against currency or price swings.