If the PPI rises, do the CPI and stock prices follow?
The Producer Price Index tracks the selling prices of businesses. It distinguishes the conditions under which price changes at the production stage are passed on to consumers and corporate profits.
Table of contents
Remember this first
First, 3 things to remember
- 1The PPI measures changes in the selling prices received by domestic producers.
- 2PPI and CPI do not move in a one-to-one ratio because their targets and calculation methods differ.
- 3Whether a company can pass on prices to customers is the key to interpreting corporate earnings.
The PPI is not the sum of all costs paid by a company.
The PPI measures the change in prices received by domestic U.S. producers for the sale of their goods. It includes services as well as goods. It is not the same as a cost index that aggregates all corporate expenses. The link is that a selling price for one entity can be an input cost for another.
Final demand distinguishes goods and services sold for final use, while intermediate demand shows the flow of inputs into the production process. Since it covers U.S. production, its scope differs from the Consumer Price Index, which directly includes imports, though export prices may be included.
Start by identifying which PPI figure it is.
Do not assume the excluded items based solely on the shorthand "Core PPI" in news reports. The series excluding food and energy is different from the series excluding food, energy, and trade services. In many cases, trade service prices are measured as a margin concept rather than the total sales amount of the retail industry.
| Expression | Differences to check |
|---|---|
| Total final demand | Check how much goods and services each contributed. |
| Excluding food and energy | Check whether the series excludes two highly volatile items. |
| Excluding food, energy, and trade services | Do not confuse it with separate series that also exclude trade services. |
| Intermediate demand | It represents pressure in the production process, but it is not a definitive forecast of consumer prices. |
Can companies pass on cost increases?
Suppose a hypothetical company sells a product for 100 dollars, with material costs of 60 dollars and other expenses of 30 dollars. If material costs rise to 66 dollars and the company cannot raise prices, its profit simply drops from 10 dollars to 4 dollars. If it raises the price to 106 dollars and maintains sales volume, it can offset some of that pressure.
However, this is difficult to achieve if customers leave or competitors maintain their prices. The timing of the pass-through also varies depending on contract periods, inventory, suppliers, exchange rates, and productivity improvements. This calculation does not imply a one-to-one relationship with a specific company's earnings or the PPI growth rate.
PPI is not the answer key for the next CPI
Even if the PPI falls, the CPI may remain high due to housing or other service prices. Imports, distribution stages, taxes, and differences in weighting and time lags also cause the two indices to diverge. Producer prices and consumer prices cannot be viewed as the same basket.
Since some PPI sub-data are used to estimate PCE, the market sometimes focuses on specific service items rather than the headline figure. Even so, one cannot mechanically calculate PCE figures based solely on the fact that the overall PPI changed by a certain percentage.
Nasdaq contains both inflation paths and earnings paths
An interpretation that higher-than-expected producer prices will persist can lead to interest rate burdens. At the same time, it can act as a price increase for companies selling raw materials and a cost increase for companies buying them. This is why the same indicator triggers different reactions across industries.
Distinguish whether price declines are due to cost stabilization or weak demand. If semiconductor prices fall, the interests of the companies using them and the companies selling them may differ. Judging the index as a whole requires considering the composition weights and explanations of individual company performance.
You should not make such assumptions
“Since PPI fell, will the next CPI also fall by the same amount?”
The survey subjects, price standards, weightings, and time lags differ. Even if the trends are similar, they do not guarantee the same magnitude or timing.
Check what you have read.
- Have you distinguished between final demand and intermediate demand?
- Did you check what was excluded from the core?
- Have you checked whether it is from the perspective of the seller or the buyer?
- Have you considered both price pass-through and the possibility of reduced demand?
Apply what you read to the actual screen
Try it on WAPE
Source and scope of verification
Reviewed · Version 1
- Producer Price Index · Frequently Asked QuestionsNew window
U.S. Bureau of Labor Statistics · Verify 2026-10-20
Domestic producer selling prices, final demand, and intermediate demand. · Differences in CPI survey scope and price concepts, and the exclusion of imports - Consumer Price Index · Frequently Asked QuestionsNew window
U.S. Bureau of Labor Statistics · Verify 2026-10-20
Scope of the Consumer Price Index and the headline vs. core (excluding food and energy) indices · Distinguishing between price levels, rates of change, and seasonal adjustments - Personal Consumption Expenditures Price IndexNew window
U.S. Bureau of Economic Analysis · Verify 2026-10-20
PCE price index and the index excluding food and energy · Measurement method reflecting changes in the composition of consumer spending. - Health Care Services in the Producer Price IndexNew window
U.S. Bureau of Labor Statistics · Verify 2026-10-20
Portions of the medical services PPI are used as data for PCE estimates
This is educational material for observation and information comprehension. Hypothetical examples do not represent actual stocks or performance and do not provide buy or sell recommendations.