This morning brought one of the key economic statistics in any given month when the Core PCE Deflator was released at 8:30 EDT. Compiled by the Bureau of Economic Analysis (BEA), this is known to be the Federal Reserve’s preferred inflation measure. Thus, today’s in-line report was originally interpreted as reason for a rally, especially after three days of (oh my!) modest declines in the S&P 500 and other key indices. As I type this later in the morning, stocks are higher, but only modestly so.
Quite frankly, I’d always simply accepted the common refrain that Core PCE was the Fed’s inflation measure of choice, but I had long forgotten the reason why. Then, while I searched for one of the links above, I went down a rabbit hole to learn more about the central bank’s reasons and found this convenient explanation:
Why does the Fed target PCE inflation instead of the CPI?
To measure inflation across the entire economy, economists produce price indexes to see how overall prices for goods and services are changing. Two common price indexes are the consumer price index (CPI) and the personal consumption expenditures (PCE) price index. While the two are similar, the PCE index is constructed in a way that accounts for how Americans are spending their money at a given time and more quickly adapts to changes in spending patterns.
A link on the Fed’s website pointed me to this more detailed explanation from the BEA:
BEA’s closely followed personal consumption expenditures price index, or PCE price index, is a narrower measure. It looks at the changing prices of goods and services purchased by consumers in the United States. It’s similar to the Bureau of Labor Statistics’ consumer price index for urban consumers. The two indexes, which have their own purposes and uses, are constructed differently, resulting in different inflation rates.
The PCE price index is known for capturing inflation (or deflation) across a wide range of consumer expenses and for reflecting changes in consumer behavior. For example, if the price of beef rises, shoppers may buy less beef and more chicken. Also, BEA revises previously published PCE data to reflect updated information or new methodology, providing consistency across decades of data that’s valuable for researchers. The PCE price index is used primarily for macroeconomic analysis.
A variation is the personal consumption expenditures price index, excluding food and energy, also known as the core PCE price index. The core index makes it easier to see the underlying inflation trend by excluding two categories – food and energy – where prices tend to swing up and down more dramatically and more often than other prices. The core PCE price index is closely watched by the Federal Reserve as it conducts monetary policy.
Pardon the digression. I hope you found as useful of a reminder as I did. Moving on to today’s activity…
As mentioned above, the PCE report was essentially in-line. The monthly and yearly increases for both the headline and core readings all matched consensus expectations (0.3% and 0.2% for monthly headline and core; 2.7% and 2.9% for each measured yearly), and last month’s core PCE was revised down from 0.3% to 0.2%. All are obviously above the Fed’s 2% inflation target, but if that didn’t dissuade them from cutting recently, why would this?
On a more granular basis, we see that Core PCE is now moving slightly lower, though on an annualized basis it is still closer to flirting with 3% than 2%:

Past performance is not indicative of future results. Sources: BEA, Interactive Brokers
Why, then, are we not seeing more robust dip buying this morning? A set of as-expected numbers that leave the preferred monetary narrative intact are usually a good reason for a rally, especially when they offer the opportunity for some dip buying. Perhaps it is because the desired outcomes are largely priced in, or maybe there is some fatigue after some relentless rallies. There were some new tariffs on drugs, trucks, and furniture announced overnight, but those were not weighing on overnight markets.
Of course, there is the looming threat of a government shutdown early next week, but stock traders typically don’t fret about them until they are inevitable – or sometimes not until they drag on for a few days.
And of course, don’t rule out the likelihood of the “Freaky Fridays”, when traders exploit expiring weekly options to create market advances. Considering that algorithms don’t get distracted by outside events like the Ryder Cup in the same way that human traders might, that possibility remains distinct.
Disclosure: Interactive Brokers
The analysis in this material is provided for information only and is not and should not be construed as an offer to sell or the solicitation of an offer to buy any security. To the extent that this material discusses general market activity, industry or sector trends or other broad-based economic or political conditions, it should not be construed as research or investment advice. To the extent that it includes references to specific securities, commodities, currencies, or other instruments, those references do not constitute a recommendation by IBKR to buy, sell or hold such investments. This material does not and is not intended to take into account the particular financial conditions, investment objectives or requirements of individual customers. Before acting on this material, you should consider whether it is suitable for your particular circumstances and, as necessary, seek professional advice.
The views and opinions expressed herein are those of the author and do not necessarily reflect the views of Interactive Brokers, its affiliates, or its employees.
Disclosure: Options (with multiple legs)
Options involve risk and are not suitable for all investors. For information on the uses and risks of options read the "Characteristics and Risks of Standardized Options" also known as the options disclosure document (ODD). Multiple leg strategies, including spreads, will incur multiple transaction costs.















Join The Conversation
If you have a general question, it may already be covered in our FAQs page. go to: IBKR Ireland FAQs or IBKR U.K. FAQs. If you have an account-specific question or concern, please reach out to Client Services: IBKR Ireland or IBKR U.K..
Visit IBKR U.K. Open an IBKR U.K. Account