CPI vs PCE is the comparison between the two main U.S. inflation gauges: the Consumer Price Index (CPI) from the Bureau of Labor Statistics and the Personal Consumption Expenditures (PCE) price index from the Bureau of Economic Analysis. Both measure how fast consumer prices rise, but they use different baskets, weights and formulas, and the Federal Reserve sets its 2% inflation goal in terms of PCE, not CPI [3]. As of the July 14, 2026 release, headline CPI was up 3.5% over the 12 months to June 2026 with core CPI at 2.6% [1]. As of the June 25, 2026 release, the headline PCE price index was up 4.1% over the 12 months to May 2026 with core PCE at 3.4% [2].
CPI vs PCE: how each index is calculated
The CPI tracks a fixed basket of goods and services bought by urban households. BLS collects prices for that basket every month and weights each item by household spending surveys. The headline figure is the CPI for All Urban Consumers (CPI-U). The 12-month change is the index level today divided by the level 12 months earlier, minus one. Core CPI removes food and energy to show the underlying trend [1].
The PCE price index comes from the national accounts. It covers everything consumed by or on behalf of households, including spending paid by third parties such as employer health insurance and Medicare. Its weights update every month to reflect what people actually buy, using a chain-type formula, so it captures substitution when shoppers switch from expensive items to cheaper ones [2]. The main differences:
| Feature | CPI (BLS) | PCE price index (BEA) |
|---|---|---|
| Basket | Out-of-pocket urban household purchases | All personal consumption, including third-party payments |
| Weights | Updated yearly from spending surveys | Updated monthly from actual spending |
| Formula | Fixed-weight (Laspeyres type) | Chain-weighted (Fisher type) |
| Shelter weight | Larger share of the index | Smaller share, more health care |
| Latest reading | June 2026: 3.5% headline, 2.6% core [1] | May 2026: 4.1% headline, 3.4% core [2] |
| Fed target | Not the target | 2% over the longer run [3] |
Which inflation measure does the Fed target?
The Fed targets PCE. Its Statement on Longer-Run Goals says that inflation of 2 percent over the longer run, as measured by the annual change in the price index for personal consumption expenditures, is most consistent with its mandate [3]. The Fed prefers PCE because it covers a broader range of spending, adjusts for substitution, and is revised as better data arrive. At the June 16 to 17, 2026 meeting the Federal Open Market Committee held the federal funds target range at 3.50% to 3.75% and said inflation remained elevated relative to the 2% goal, in part reflecting supply shocks [4]. With core PCE at 3.4% in May 2026, the gap to target was 1.4 percentage points [2][4].
Why the two readings differ in 2026
In most years PCE inflation runs a few tenths of a point below CPI, mainly because shelter has a bigger weight in CPI and the chain formula in PCE dampens price spikes. The 2026 readings do not follow that pattern month for month: headline PCE for May (4.1%) was above headline CPI for June (3.5%) [1][2]. Two things explain most of it. First, the periods differ by one month, and June saw the largest one-month CPI drop since April 2020, a 0.4% decline driven by a 5.7% fall in energy prices [1]. Second, energy and health care have different weights in the two baskets, so the same oil price move shows up with different force. Investors comparing the two should line up the same month once BEA publishes June PCE.
What the June 2026 CPI report showed
The June 2026 CPI, released July 14, 2026, showed the all-items index falling 0.4% in the month on a seasonally adjusted basis while the 12-month rate stayed at 3.5% [1]. Core CPI was flat in the month and up 2.6% over the year [1]. Over 12 months, shelter rose 3.3%, food 3.0% and energy 15.7% [1]. The split matters: the 12-month headline rate is still carrying the energy surge from earlier in the year, while the monthly core reading of zero suggests underlying price pressure is easing. The index level itself is available on DataPorium's economic metrics page, which tracks the seasonally adjusted CPI series at 332.6 for June 2026 alongside the federal funds rate and GDP [5].
The May 2026 personal income and outlays report showed the PCE price index up 0.4% in the month and 4.1% over the year, core PCE up 0.3% and 3.4%, personal income up 0.7%, and a personal saving rate of 3.0% [2]. A 3.0% saving rate is low by historical standards. It means households are spending most of their income gains, which supports demand but leaves less cushion if prices keep rising faster than wages.
How investors use CPI and PCE
- Rate expectations: because the Fed targets PCE, the core PCE print is the number that moves expectations for the federal funds rate. Core PCE at 3.4% against a 2% goal argued against near-term cuts as of June 2026 [2][3].
- Bond pricing: Treasury Inflation-Protected Securities and Series I savings bonds are indexed to CPI, not PCE, so CPI drives their payouts [1].
- Real returns: subtracting inflation from nominal yields gives real yields. The 10-year Treasury yielded 4.55% as of July 7, 2026; against CPI at 3.5% that is roughly 1 point of real yield on a trailing basis [1][6].
- Wage and contract escalators: Social Security cost-of-living adjustments, many leases and union contracts use CPI.
- Sector positioning: a wide gap between headline and core (3.5% vs 2.6% CPI) points to energy as the driver, which affects energy producers, airlines and consumer staples differently [1].
Investors may consider watching both: PCE for what the Fed will do, CPI for what indexed assets and contracts will pay. A market-oriented reading of the 2026 data is that supply-driven energy inflation is fading in the monthly numbers while core services remain sticky; sound money requires the Fed to keep policy restrictive until core PCE moves clearly toward 2%.
The Fed targets 2% PCE inflation, and with core PCE at 3.4% in May 2026 and core CPI at 2.6% in June 2026, both gauges still sat above that goal.
Key takeaways
- CPI (BLS) uses a fixed urban household basket; PCE (BEA) covers all consumption with monthly, chain-weighted updates.
- The Federal Reserve's 2% goal is defined in PCE terms, so core PCE drives rate expectations [3].
- June 2026 CPI: 3.5% headline, 2.6% core, with a 0.4% monthly decline led by energy [1].
- May 2026 PCE: 4.1% headline, 3.4% core; personal saving rate 3.0% [2].
- CPI still matters for TIPS, I bonds, Social Security adjustments and many contracts.
Frequently asked questions
What is the difference between CPI and PCE inflation?
CPI measures prices for a fixed basket bought directly by urban households, while PCE measures prices for all personal consumption, including spending paid by employers and government programs, with weights that change monthly. PCE usually runs a bit lower than CPI, though not in every month [1][2].
Which inflation measure does the Federal Reserve use?
The Fed defines its 2% longer-run inflation goal using the annual change in the PCE price index, and it watches core PCE (excluding food and energy) most closely [3].
What was CPI inflation in June 2026?
Headline CPI rose 3.5% over the 12 months to June 2026 and fell 0.4% in the month; core CPI rose 2.6% over the year and was unchanged in the month, according to the July 14, 2026 BLS release [1].
What was PCE inflation in May 2026?
The PCE price index rose 4.1% over the 12 months to May 2026 and core PCE rose 3.4%, according to the June 25, 2026 BEA release [2].
Sources & References
- [1] BLS, Consumer Price Index, June 2026 (released July 14, 2026)
- [2] BEA, Personal Income and Outlays, May 2026 (released June 25, 2026)
- [3] Federal Reserve, Why does the Federal Reserve aim for inflation of 2 percent over the longer run?
- [4] Federal Reserve, FOMC Statement, June 17, 2026
- [5] DataPorium Economic Metrics (CPI, federal funds rate, GDP)
- [6] U.S. Department of the Treasury, Daily Treasury Par Yield Curve Rates, July 2026
