CPI s.a
What is CPI s.a?
The Consumer Price Index (CPI) measures the average change in prices paid by urban consumers for a representative basket of goods and services including food, housing, medical care, and transportation. Core CPI excludes volatile food and energy prices. It is released monthly by the Bureau of Labor Statistics (BLS), typically around the 10th–15th of the month.
Why does it matter for investors?
CPI is one of the most market-moving economic releases. A surprise high print signals persistent inflation, raising the odds of more Fed rate hikes and pressuring growth stocks. A cooler-than-expected number can trigger a strong rally in QQQ and bonds. The shelter/housing component — the largest single weight in CPI — has been a key driver of elevated readings.
What to watch for
- ›Month-over-month change vs. consensus estimate (±0.1% can move markets significantly)
- ›Core CPI (ex food & energy) — more closely watched by the Fed
- ›Shelter/OER (Owners' Equivalent Rent) component — largest CPI weight at ~35%
- ›Core services ex-shelter ("supercore") — the Fed's preferred inflation gauge within CPI
- ›QQQ and 10-year Treasury reaction in the first hour post-release
When is CPI released each month?
CPI is released by the Bureau of Labor Statistics monthly, typically 2–3 weeks after the reference month ends, usually between the 10th and 15th of the month at 8:30 AM ET.
What is the difference between CPI and Core CPI?
Core CPI excludes food and energy prices, which are volatile and seasonal. The Fed focuses more on Core CPI as it better reflects underlying inflation trends.
How does a high CPI print affect stocks?
A surprise high CPI print often triggers a sell-off in growth stocks (QQQ) as it raises expectations for more Fed rate hikes. Bond yields rise and tech valuations compress. A cool CPI print typically sparks a relief rally.
Market Reaction
QQQ & SPY price change ±5 trading days around this event
Source: Yahoo Finance