USD/CHF extends the rally above 0.8800, US CPI data looms

• USD/CHF extends its upside to near 0.8830 in Wednesday's early European session. 
• The US October CPI inflation data will take center stage on Wednesday. 
• The uncertainty surrounding Trump's policy and geopolitical risks might cap the pair's upside.

The USD/CHF pair trades in positive territory for the fourth consecutive day around 0.8830 during the early European session on Wednesday. The rally in the US Dollar (USD) due to the Trump trades provides some support to the pair.

The Trump trades have underpinned the Greenback and US Treasury bond yields as markets expect the Federal Reserve (Fed) to slow the pace of future rate reduction. The markets have priced in nearly 62.4% of the 25 basis points (bps) rate cut by the Fed at the December meeting, down from 75% last week, according to the CME FedWatch Tool. 

Market players will keep an eye on the key US Consumer Price Index (CPI) inflation data for October, which is due later on Wednesday. The headline CPI is estimated to rise 2.6% YoY in October, faster than the previous reading of a 2.4% increase. The core CPI is expected to remain at 3.3% YoY in October. Meanwhile, the monthly CPI and the core CPI are expected to show an increase of 0.2% and 0.3%, respectively.

A downside surprise in the US annual CPI inflation might diminish the expectations of a December Fed rate cut and could exert some selling pressure on the USD. On the other hand, the markets could push back against expectations for a rate cut in December on hotter-than-expected CPI readings, lifting the Greenback. 

On the other hand, the safe-haven flows could boost the Swiss Franc (CHF) and might cap the upside for the pair. Traders will monitor the development surrounding increased uncertainty about the impact of likely tariffs in the upcoming Trump administration and the ongoing geopolitical tensions in the Middle East.