UK September Retail Price Index YoY: Bullish for GBP

The UK Office for National Statistics released the year-over-year Retail Price Index (RPI) for September on September 17, 2025. The reported figure was 4.6%, with no forecast available; the previous reading was also 4.6%.Definition: The Retail Price Index (RPI) measures the trend and magnitude of changes in retail prices of goods over a specific period. While RPI was once widely used to gauge inflationary pressures, it has largely been replaced by the Consumer Price Index (CPI), resulting in diminished market impact. Nevertheless, an increase in retail prices typically signals rising inflationary pressure, which may prompt the Bank of England to adopt a more hawkish policy stance, thus exerting upward influence on GBP.This data has a moderate importance level (2). It is calculated by tracking changes in retail goods prices and is released monthly. The next release is scheduled for November 19, 2025.

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