Short answer
The CPI report tells investors whether inflation is cooling or heating up, which drives every Fed decision — and therefore every asset price.
Why is the CPI report important?
What happened
Markets moved sharply after the monthly Consumer Price Index release.
Why it happened
Even a 0.1% surprise in inflation can shift expectations for Fed rate cuts by months. Bonds, stocks and the dollar all re-price instantly.
Why investors care
It's the single most-watched economic data point in the world.
How it affects ordinary people
Mortgage rates, savings rates and ETF balances can all move on CPI day.
FAQ
What is core CPI?
CPI excluding food and energy — considered a cleaner read on underlying inflation.
Related topics
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