What is CPI in forex?

Definition CPI (Consumer Price Index) is a measure of the average change over time in the prices consumers pay for a basket of goods and services; in forex it usually means the monthly US figure from the Bureau of Labor Statistics.

CPI, the Consumer Price Index, is the monthly US inflation report. The Bureau of Labor Statistics (BLS) defines it as “a measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services” and publishes it at 8:30 a.m. New York time; forex traders treat it as a high-impact release for pairs that include the US dollar.

The four numbers in the release

The release is about the CPI for All Urban Consumers (CPI-U). Its summary reports four figures (BLS CPI summary):

Figure	What it is
Headline, monthly	Change in the all-items index from last month, seasonally adjusted
Headline, 12-month	Change over the last 12 months, before seasonal adjustment
Core, monthly	The same for “all items less food and energy”
Core, 12-month	Core over the last 12 months

Markets compare each figure with its forecast, and the surprise is what moves prices. A reading in line with the forecast, however high, tells the market little it did not already expect.

Why the dollar moves on CPI

Inflation is half of what US rate decisions answer to. Congress has assigned the Federal Reserve the goals of “maximum employment and stable prices” (Federal Reserve), and its FOMC sets US rates with them in mind. A CPI surprise changes what the market expects from the next rate decisions, and rate expectations move the dollar. NFP works through the same channel, from the jobs side.

Around the release, the spread can widen and stops can fill with slippage, as with any major data point.

When it comes out

At 8:30 a.m. Eastern Time: 12:30 UTC during US daylight saving time and 13:30 UTC in winter. The day is not fixed. In 2026, the BLS schedule puts every CPI release between the 10th and the 14th of the month, on weekdays from Tuesday to Friday. Check the BLS CPI schedule, or the dated list in high-impact news in forex. The forex market hours tool shows 8:30 a.m. New York time in your own zone.

A worked example of a news window

Where you see it in MT5

The Calendar tab of the Toolbox (Ctrl+T) lists each release with its time, priority, and its current, forecast and previous values (MT5 help). Many countries publish their own consumer price index, so check the currency next to the event before you read it as the US release.

The common mistake

Reading the number without the forecast. A high inflation figure that was expected can leave the dollar flat, while a small miss on core can move it. The other mistake is assuming CPI is on a fixed weekday, as NFP usually is.

CPI and automated trading

By default, PipWarden opens no new trades from 60 minutes before to 30 minutes after a high-impact event for the currencies involved, which for US CPI means every enabled pair that contains USD. The window is yours to change, and the news blackout can be switched off. Skipped signals are logged as “High-impact news”. Trades already open are not closed: they keep their stops at the broker. See how it works.

Frequently asked questions

What is the difference between headline and core CPI?

Headline CPI covers all items. Core CPI is the index for all items less food and energy. The BLS publishes both in the same release, each as a monthly and a 12-month change.

Is CPI the inflation measure the Fed targets?

No. The Federal Reserve’s 2 percent goal is defined on the price index for personal consumption expenditures (PCE), according to the Federal Reserve. CPI still shapes what the market expects the Fed to do.

Educational content, not financial advice. Forex and CFDs are traded on margin and are high risk: you can lose money, and more than your deposit with some brokers. Examples use made-up numbers and show no real results. Read the risk disclosure.