USD mixed as CPI report takes center stage

At the start of North American trading, the US dollar showed a mixed performance, gaining against the euro, pound, Swiss franc and Canadian dollar while declining against the yen, Australian and New Zealand dollars.

The most notable shifts occurred in commodity currencies: the New Zealand dollar rose 0.45% and the Australian dollar gained 0.27% against the greenback. The US dollar also fell 0.29% versus the Japanese yen. On the other side, the dollar strengthened 0.34% against the Swiss franc and 0.20% versus the Canadian dollar. The euro and British pound posted only small declines.

Trading ranges for the main currency pairs have stayed narrow as traders await the US CPI data:

• EURUSD: 1.1592, with a range of 1.1591 to 1.1617

• USDJPY: 153.97, with a range of 153.92 to 154.61

• GBPUSD: 1.3506, with a range of 1.3496 to 1.3526

CPI data takes the spotlight

The August CPI data is due out at 8:30 AM Eastern Time, with the following consensus forecasts:

• Month-over-month headline CPI is expected at +0.4%, compared with +0.1% in July.

• Year-over-year headline CPI is seen at +3.4%, unchanged from the prior reading.

• Core CPI on a monthly basis is forecast at +0.2%, matching the previous figure.

• Year-over-year core CPI is expected to ease to +2.4% from +2.5%.

The monthly headline figure is forecast to jump to 0.4%, driven mainly by higher energy costs. Energy is known for its volatility, so traders are also paying close attention to core inflation, which strips out food and energy components.

Core inflation offers a clearer signal about whether price pressures are becoming entrenched in the economy. Particular focus will be on shelter costs and services inflation. Should those categories stay high, the Fed could find it harder to be confident that inflation is on a sustainable path to its 2% objective.

Tuesday's PPI data was broadly in line with monthly forecasts, though the annual figures stayed high. This increases the importance of today's CPI release. A further strong inflation reading might strengthen the case for the Fed to keep a tighter policy or even raise rates again.

Traders are expected to look first at Treasury yields for the initial market response. A CPI number above forecasts typically drives yields and the dollar up, while weighing on equities. A weaker result would ease yields, drag the dollar down, and boost stocks.

The reaction may have some subtleties. If the headline rise is mainly due to energy, it might not provoke the same response as a widespread core price increase. Investors are likely to dig into the details to gauge whether any early move is warranted.

Treasury yields stay high

Short-dated Treasury yields led the gains after a strong advance on Tuesday, with most maturities moving higher:

• 2-year yield: 4.570%, up 2.0 basis points

• 5-year yield: 4.744%, up 1.1 basis points

• 10-year yield: 4.951%, up 0.7 basis points

• 30-year yield: 5.358%, down 0.3 basis points

The front end of the curve is more responsive to Fed policy expectations. The bigger moves in the 2- and 5-year yields indicate that market participants still worry that inflation may force the central bank to maintain its tighter stance for an extended period.

The 10-year yield continues to trade just under the key 5.00% threshold. Such round numbers often draw extra interest as they become trading benchmarks. A break above 5.00% on a sustained basis would add headwinds for equities and boost the dollar. On the other hand, a retreat from that level after a soft CPI would offer some market relief.

A stronger yield supports the dollar by making US assets more attractive. But if the climb is too fast, it can damage risk appetite and cause erratic, occasionally contradictory, currency moves.

US equities try to recover

Equity futures indicate a positive start to the session following a four-day losing streak. A snapshot of the major index projections currently shows:

• Dow industrial average: +260 points

• S&P index: +40 points

• Nasdaq index: +176 points

The bounce gives bulls some confidence, but it occurs ahead of the CPI release. Thus the pre-market gains are at risk of being reversed if inflation or rate expectations shift.

Elevated yields raise the discount rate applied to future profits, which hits growth and tech firms especially hard since a larger share of their valuation depends on distant earnings. That is why the Nasdaq is often more reactive to sudden yield swings.

A weak CPI might let buyers extend the recovery. A strong reading, coupled with the 10-year yield breaking above 5.00%, could swiftly push indices lower again. After four straight down days, both sides will seek confirmation from the post-data price action.

Middle East instability persists as key market risk

Geopolitical risk in the Middle East remains focused on oil supplies and shipping lane security. Reports indicate Houthi rebels, backed by Iran, have moved closer to the Bab el-Mandeb Strait, and strikes on Saudi energy sites have hit output and shipments. The International Energy Agency noted a steep decline in Saudi crude production in August and cautioned that any prolonged disruption to Gulf flows could exacerbate the worldwide supply deficit.

The Bab el-Mandeb Strait links the Red Sea and Gulf of Aden, forming a vital corridor for energy transport and commerce. Any blockage could send ships onto longer, costlier paths, raising transport costs and slowing deliveries.

Hopes are emerging that talks between Iran and Gulf states may reduce risks near the Strait of Hormuz. That possibility, along with profit-taking after a recent rally, is pulling oil prices lower today.

October crude futures fell $2.80 (2.72%) to $99.71, dipping back under the $100 mark after touching $104.46 on Tuesday.

The drop offers some respite, but a single day's losses do not erase the fundamental supply threats. A fresh strike on oil infrastructure or shipping routes could swiftly reverse the slide. On the other hand, substantial diplomatic advances might strip away some of the geopolitical premium embedded in crude prices.

Oil also matters for the inflation picture. Rising crude costs work their way into gasoline, transport, and manufacturing expenses, and those increases ripple through the economy as companies pass them to customers. This link explains why Middle East developments, CPI data, yields, and Fed policy are all interconnected in Wednesday's trading.

In other markets, gold added 0.29%, silver rose 0.35%, and bitcoin was near $76,900, up about 0.49%. Gold managed a small advance even with yields high, while bitcoin gained support from the brighter mood in stock futures.