The US Bureau of Labor Statistics will publish the October 2026 Consumer Price Index on Tuesday, 10 November, without the 12-month change for headline or core inflation, Bloomberg reported, according to a post by Wall St Engine. The BLS’s own shutdown FAQ says: “For most CPI series, BLS could not publish October 2025 indexes. As a result, BLS will not publish 12-month percent changes for October 2026 for indexes where October 2025 data are not available”.
By our count from the BLS data, one month of prices that were never collected, October 2025, removes two annual readings from the headline CPI-U series: October 2025’s and October 2026’s. The last annual reading before the second gap is September’s: 3.7% for all items and 2.6% excluding food and energy, the BLS September release says.
Business Pill · Financial Conditions
An evergreen Business Engineer explainer on financial conditions. It teaches the general idea only and does not discuss the CPI or this release.
The key insight: The BLS says it will not publish 12-month percent changes for October 2026 for indexes where October 2025 data are not available, and that for most CPI series it could not publish October 2025 indexes. By our count, that one uncollected month removes two annual readings from the headline series; the last published is September 2026, at 3.7% headline and 2.6% core.
Federal agencies were shut down or operating at reduced staffing “during a lapse in appropriations from October 1, 2025, through November 12, 2025”, the FAQ says. “Most CPI operations, including data collection, were suspended during that time period”.
Its answer on October is short: “BLS could not collect October 2025 reference period survey data”. Survey prices were carried forward from September 2025, and rents from April 2025. “BLS did not issue an October 2025 CPI news release”.
The FAQ gives the reason the month was not filled in later: “BLS viewed retroactively collecting data for October as both costly and potentially inaccurate, especially since the CPI surveys are not based on respondent recall”. It adds that “BLS does not have data collection resources to collect 2 months of data in 2 weeks”.
Headline and core CPI-U 12-month change, not seasonally adjusted, January 2025 to September 2026. October 2025 has no published index, so there is no reading for that month, and October 2026 will have no year-ago base. The rates are our arithmetic from BLS index levels.
What Was Posted on X
THE US ๐บ๐ธ WON’T REPORT ITS ANNUAL INFLATION RATE FOR OCTOBER
The Bureau of Labor Statistics will publish October’s consumer price index on Tuesday without the 12-month change for headline or core inflation, Bloomberg reports.
Here’s why:
The 2025 government shutdown stopped BLS from collecting October 2025 prices. Without them, there is no year-ago number to compare October 2026 against.
BLS says it can’t go back and collect the missing data.
A card posted by @wallstengine at 19:59 UTC on 9 November, citing Bloomberg: the BLS will publish October’s consumer price index on Tuesday without the 12-month change for headline or core inflation, because the 2025 government shutdown stopped it collecting October 2025 prices, and the BLS says it cannot go back and collect them. The BLS FAQ quoted in this piece is the primary source for that answer.
What Is in Tuesday’s Release, and What Is Not
The release itself is on schedule. The BLS CPI page says the index for October 2026 “is scheduled to be released on November 10, 2026, at 8:30 A.M. Eastern Time”. The September indexes were published on 14 October, with the all items CPI-U at an index level of 336.940.
What goes missing is the year-ago comparison. In the BLS data, the October 2025 cell for both the all items index and the index excluding food and energy is a dash, with the footnote “Data unavailable due to the 2025 lapse in appropriations”. The FAQ says that footnote is how missing data are shown in its tables and API.
There is a small exception. “For a few indexes, BLS uses nonsurvey data sources instead of survey data to make the index calculations”, the FAQ says, and BLS “was able to retroactively acquire most of the nonsurvey data for October”. Its answer on October 2026 applies to indexes where October 2025 data are not available.
The same day, the FAQ says, BLS plans to publish final estimates of the chained CPI-U for October through December 2025.
The Other Months the Gap Touched
The missing month has shown up before. November 2025 indexes were calculated by comparing collected November prices “with the carried-forward October 2025 prices”. For December 2025, BLS did not publish 2-month changes for cities on a bi-monthly, even-month pricing schedule.
The 2025 annual average for most series was computed from 11 monthly values instead of 12. For rents, the FAQ says the 1-month change for April 2026 “will be atypical”, because the October 2025 panel was carried forward.
The FAQ also describes how carry-forward behaves: “In periods of general price increases, the carry-forward method may result in an underestimation”.
What the Published Indexes Show
Using the index levels BLS has published, the headline 12-month rate ran between 3.3% and 4.2% from March to September 2026, by our arithmetic. It was 3.0% in September 2025, the last month before the gap, and 2.7% in November 2025, the first month after it.
The core rate, which excludes food and energy, was 3.0% in September 2025 and 2.6% in September 2026, by the same arithmetic. With October 2026 blank, the next annual comparison for both series is November 2026 against the November 2025 index that BLS built on carried-forward October prices.
Why It Lands in an AI-Financing Week
The missing data point arrives in a week when the cost of AI debt has been a focus of our coverage. On 9 November we reported Bloomberg’s account of a BloombergNEF estimate: some $13.4 billion of outstanding fixed-rate, dollar-denominated data center debt is expected to mature in 2027, and refinancing it at prevailing Treasury yields as of October 2026 would add at least $380 million in expenses.
Also on 9 November, we reported that a Bank of England record puts AI hyperscalers at 47% of sterling corporate bond issuance in 2026 up to that point. And Bloomberg reported that Anthropic can begin formally marketing its IPO as early as Tuesday, as we covered in Anthropic said to start IPO marketing at a lower target. Tuesday is also the CPI release day.
The Federal Reserve held its benchmark rate at 3.75% to 4% on 28 October, as we reported. This piece does not assess how markets or the Fed read the figures.
The Structural Read
As we read it, the gap is a measurement issue, not a price signal: the BLS says the October release is on schedule, and what is missing is the year-ago base that the 2025 shutdown left uncollected.
BLS, 2025 federal government shutdown impact on the Consumer Price Index (FAQ)
“BLS viewed retroactively collecting data for October as both costly and potentially inaccurate, especially since the CPI surveys are not based on respondent recall.”
Three Implications
FOR READERS OF THE DATA The BLS footnote for the missing October 2025 cell reads: Data unavailable due to the 2025 lapse in appropriations. The FAQ says some nonsurvey indexes were published for October 2025 but does not list them.
FOR THE SERIES The 2025 annual average for most series was computed from 11 index values, and November 2025 indexes were calculated against carried-forward October 2025 prices, the FAQ says.
FOR AI FINANCING COVERAGE The release lands in a week when our coverage has tracked the cost of AI debt, including a BloombergNEF estimate on data center debt maturing in 2027.
The framework argues: “It describes the intersection of three powerful forces: geopolitics, cultural transformation, and economic change.”
As we read it, the October gap shows the economic layer depending on the political one: a 2025 funding lapse in Washington is why a 2026 inflation figure is missing. The framework predates this release and does not discuss the CPI.
What Is Not Established
We read the Wall St Engine post, not Bloomberg’s full report. The FAQ says some nonsurvey indexes were published for October 2025, but it does not list them, so we cannot say which October 2026 series will carry a 12-month change. The FAQ does not describe a substitute comparison, such as a change from September 2025.
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This week’s issue: for two years the AI build-out was priced as a supply story, and last week as a credit story. This week it was priced as a permission story, and the answer arrived as a cost, not a ban.
The BLS will publish October’s CPI on 10 November without the 12-month change for most series, because October 2025 prices were never collected during the shutdown and the BLS says collecting them later would be “both costly and potentially inaccurate”. By our count, that single month removes two annual readings. The last one published stands at 3.7% headline and 2.6% core for September 2026.
A note on sourcing. The BLS statements come from its FAQ on the 2025 shutdown’s impact on the CPI (last modified 16 September 2026), its CPI home page and its September 2026 release. Index levels come from the BLS Public Data API, read on 9 November 2026; the 12-month rates and the count of missing annual readings are our arithmetic from them. Bloomberg’s report is cited as relayed by Wall St Engine on X. This piece makes no forecast.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
