The Consumer Price Index (CPI) measures the change in the price of goods and services from the perspective of the consumer. It is a key way to measure changes in purchasing trends and inflation.
A higher than expected reading should be taken as positive/bullish for the GBP, while a lower than expected reading should be taken as negative/bearish for the GBP.
European Central Bank (ECB) President Christine Lagarde (November 2019 - October 2027) is to speak. As head of the ECB, which sets short term interest rates, she has a major influence over the value of the euro. Traders watch her speeches closely as they are often used to drop subtle hints regarding future monetary policy and interest rate shifts.
Her comments may determine a short-term positive or negative trend.