The main inflation number — how fast prices are rising for everyday goods. Major driver of central bank decisions and forex moves.
CPI measures how much more (or less) consumers are paying for a basket of goods and services compared to the same time last year. It's the primary inflation gauge, and central banks use it to decide interest rates. Hot CPI = inflation is a problem = central bank likely to hike rates = currency strengthens. Cool CPI = inflation is cooling = central bank can cut = currency weakens.
There are two versions to watch: headline CPI (everything) and core CPI (excluding food and energy, which are volatile). Core is usually what central banks focus on because it's more stable.
Like NFP, CPI is a three-dot red event on the economic calendar. Spreads widen, volatility spikes, and the initial reaction can be misleading. Wait for the dust to settle before trading the move.
The June 2022 US CPI print at 9.1% (40-year high) triggered the largest single-day USD rally of the year and set up the entire Fed hiking cycle that followed.
Frequently asked about cpi (consumer price index)
What is a cpi (consumer price index) in trading?+
The main inflation number — how fast prices are rising for everyday goods. Major driver of central bank decisions and forex moves.
When will I see cpi (consumer price index) used in real trading?+
Monthly releases for each country. US CPI is usually mid-month at 8:30am ET. Check your economic calendar.
What is the most common mistake traders make with cpi (consumer price index)?+
Focusing only on the headline CPI number. Central banks care more about core CPI. A cool headline but sticky core won't move rates — but might fake out traders looking only at the top-line.
What do experienced traders know about cpi (consumer price index) that beginners don't?+
Track the 6-month and 12-month CPI trend, not just the monthly release. One hot month is noise; three in a row is a story. Central banks react to trends, not ticks.
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