Will the rate of CPI inflation be above 3.9% for the year ending in November 2026?

- [2026-09-11] BLS released the August 2026 CPI report: in August, the Consumer Price Index for All Urban Consumers rose 0.4 percent, seasonally adjusted, and rose 3.4 percent over the last 12 months, not seasonally adjusted; core CPI rose 0.3 percent in August, up 2.4 percent over the year. (https://www.bls.gov/cpi/) - [2026-10-07] The BLS homepage currently lists CPI at +0.4% for Aug 2026 as the "Latest Numbers," confirming 3.4% YoY is still the most recent official reading. (https://www.bls.gov/cpi/) - [2026-10-14] The next CPI release is scheduled for Wednesday, October 14, 2026 at 8:30 AM ET, covering September 2026 ; street consensus for September YoY CPI is around 3.6-3.7% (vs. 3.4% prior), per market trackers (https://fedratecalc.com/cpi-release-date/, https://nowflation.com/cpi-release-dates). - [2026-10-07] Remaining 2026 BLS CPI release dates before market close: Nov 10, 2026 (October data) and Dec 10, 2026 (November data — the reference month for this contract). (https://fedratecalc.com/cpi-release-date/) - [2026-09-02] A government shutdown was averted: Congress moved early, passing a continuing resolution that President Trump signed into law on September 2, 2026... the bill keeps federal agencies funded at current levels through December 11, 2026 . (https://govtschemes.org/government-shutdown-october-2026/) - [2026-10-05] As of early October 2026 there is no active shutdown: At least this year we are not in a shutdown, but neither are we in a fully funded status , with the next funding cliff on December 11, 2026 — just after the market's December 10 close. (https://federalnewsnetwork.com/congress/2026/10/congress-may-be-in-recess-but-the-unfinished-business-is-piling-up/) - [2025-12-18] For context on how severe shutdown-related disruption can be: the prior (2025) 43-day shutdown forced BLS to cancel the October 2025 CPI report entirely and delay the November 2025 CPI release to December 18, 2025, two weeks late. (https://www.bls.gov/bls/2025-lapse-revised-release-dates.htm) - [2026-02-13] That same 2025-26 shutdown also pushed the January 2026 CPI release from Feb 11 to Feb 13, 2026, confirming BLS schedules have already been disrupted once this cycle. (https://www.bls.gov/bls/2025-lapse-revised-release-dates.htm) - [2026-10-01] A private forecasting model (Long Forecast) projects headline CPI near 3.40-3.48% for October/November 2026, i.e., clustering just under the 3.9% strike. (https://longforecast.com/us-cpi) - [2026-10-05] Market-tracker consensus for the upcoming Sept 2026 print is 3.6-3.7% YoY, still meaningfully below 3.9%, though above the 3.4% August reading, indicating an upward trend driven by tariff pass-through. (https://thriveinmarkets.com/calendar/indicator/cpi/, https://nowflation.com/cpi-release-dates) - [2026-09-30] Some economist commentary (e.g., PIIE, published earlier in 2026) warned of risk that inflation could rise above 4% by year-end 2026 due to tariff pass-through, tight labor supply and loose fiscal policy, though this is a minority/risk-case view versus the ~3.4-3.7% mainstream trajectory. (https://www.piie.com/blogs/realtime-economics/2026/risk-higher-us-inflation-2026) BOTTOM LINE: The latest confirmed CPI print (August 2026, released 2026-09-11) stands at 3.4% YoY, well below the 3.9% strike, with consensus for the next print (September 2026, due 2026-10-14) around 3.6-3.7%; no active government shutdown threatens the October 14, November 10, or December 10 (November data) release dates, as funding is secured through December 11, 2026, so the resolution-critical November 2026 CPI figure is very likely to be published on schedule December 10, 2026, just before market close. NOT FOUND: An official BLS or Fed "nowcast"/consensus specifically for the November 2026 CPI YoY figure (the resolution month); confirmation of whether the December 11, 2026 funding deadline poses any renewed shutdown risk that could delay the December 10 CPI release.

- [2026-09-11] Latest confirmed BLS print: the August 2026 CPI release showed headline CPI "The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) increased 3.5 percent over the last 12 months" while CPI-U (the official measure for this contract) rose 3.4% y/y, with the August report posted at https://www.bls.gov/news.release/pdf/cpi.pdf. - [2026-10-06] The Cleveland Fed's model-based nowcast — a widely cited but imperfect proxy — put September 2026 CPI at "September 2026 | 3.60 | 2.39 | 3.56 | 3.02 | 10/06" (headline/core CPI/PCE/core PCE, y/y%) and projected October 2026 headline CPI rising further to roughly 3.63% y/y (https://www.clevelandfed.org/indicators-and-data/inflation-nowcasting). - [2026-10-02] Independent trackers summarizing the nowcast noted "The Cleveland Fed's inflation nowcast, updated October 2, projects September CPI up 0.53% for the month and 3.60% over the year... Early consensus trackers put the headline figure near 3.7%" for the upcoming October 14 release (https://jorgai.com/blog/september-2026-cpi-report-preview-october-14). - [2026-08-14] The Philadelphia Fed's Q3-2026 Survey of Professional Forecasters (32 economists), a strong track record source, projected "headline CPI and core CPI inflation in 2026 are expected to average 3.6 percent and 2.8 percent, respectively" on a Q4/Q4 basis — directly relevant to the November 2026 y/y reading, and below the 3.9% strike (https://www.philadelphiafed.org/surveys-and-data/real-time-data-research/spf-q3-2026). - [2025-12-XX] The St. Louis Fed noted that "the 2025 forecasts have turned out to be rather accurate. For 2026, professional forecasters expect 1.9% GDP growth and a 2.9% increase in the consumer price index" , and historically CPI forecasts have been correct in roughly only "Forecasts of CPI inflation have been a little more accurate (56%)" of cases — underscoring real forecast uncertainty (https://www.stlouisfed.org/on-the-economy/2025/dec/professional-forecasters-past-performance-outlook-2026). - [2026-10-05] Base-rate/history check: BLS historical CPI-U y/y data show the rate has not exceeded 3.9% since mid-2023 — it fell from a 2022 peak of 9.1% through 2023 (ending the year near 3.1–3.4%), bottomed around 2.1–2.4% in late 2024, dipped further to ~2.3% in spring 2025, then reaccelerated to "2025 | 3.0 | 2.7 | 2.2 | 2.1 | 2.2 | 2.6 | 2.5 | 2.8 | 2.9" by late 2025 and continued up to 3.4% by August 2026 (https://www.bls.gov/regions/mid-atlantic/data/consumerpriceindexhistorical_us_table.htm). This means roughly 3+ years (since mid-2023) without a single month above 3.9%. - [2026-10-01] A simple time-series extrapolation (Long Forecast, non-authoritative) projected "CPI forecast for November 2026. The forecast for the beginning of November 3.440%. Maximum rate 3.689%, while minimum 3.234%. Average interest rate for the month 3.461%. CPI at the end 3.480%" — consistent with professional forecasts clustering well under 3.9% (https://longforecast.com/us-cpi). - [2025-10-10] Base-rate complication: data-reliability risk exists because of the 2025 shutdown precedent — during the 43-day October–November 2025 shutdown, "Publication of September data was delayed by more than a week (from October 15 to October 24) because of the shutdown" and October 2025 CPI survey data were never collected, forcing BLS to carry forward prior-month prices (https://www.bls.gov/cpi/additional-resources/2025-federal-government-shutdown-impact-cpi-faq.htm). - [2026-09-02] This year's shutdown risk around the October 1, 2026 funding deadline was averted: "The feared government shutdown October 2026 did not happen. With federal funding set to lapse at midnight on October 1, Congress moved early, passing a continuing resolution that President Trump signed into law on September 2, 2026... The bill keeps federal agencies funded at current levels through December 11, 2026" — this removes the main historical analog risk of a BLS data delay/extension clause being triggered before the question's December 10, 2026 close (https://govtschemes.org/government-shutdown-october-2026/). - [2026-10-06] Scheduling base rate: BLS's own calendar lists the November 2026 CPI release for December 10, 2026 — the same date the market closes — meaning, absent another funding lapse near that date, the official reading needed to resolve this market should be available on schedule (per BLS release calendar, cross-checked at https://fedratecalc.com/cpi-release-date/). BOTTOM LINE: Over the last three-plus years CPI has not printed above 3.9% in any single month (last comparable readings were in 2023, before a 2024-25 disinflation trough and a 2026 reacceleration to ~3.4–3.6%); every credible forecast track (Cleveland Fed nowcast, SPF, Street consensus) currently clusters in the 3.5–3.7% range for the relevant months, putting the base rate and current forecasts both below, but not far below, the 3.9% strike — so a reading above 3.9% by November 2026 would require a further meaningful upside surprise beyond consensus, not merely a continuation of the recent trend. NOT FOUND: No CPI forecast specifically for the November 2026 reference month (vs. September/October) from BLS or professional surveys was located; no betting-market or prediction-market historical base rate for "CPI above X% y/y" style contracts was found; could not confirm whether any new funding deadline exists between December 11, 2026 CR expiration and the December 10 market close that could again risk a data delay (the CR funds government only through Dec 11, one day after the scheduled Nov CPI release and market close).

YES means: BLS reports a twelve-month CPI-U increase (one-decimal, NSA) above 3.9% for the period ending November 2026, published in the scheduled December 10, 2026 release (or a shutdown-extended release before market close). - [2026-01-20] PIIE's Orszag and Posen argued the consensus "gradual descent toward the Federal Reserve's 2 percent target" is wrong, and that it is more likely that inflation will surprise to the upside—potentially exceeding 4 percent by the end of 2026, driven by lagged tariffs, fiscal deficit expansion exceeding 7 percent of GDP, a tighter labor market, looser-than-recognized monetary policy, and drifting inflation expectations . This is a direct, named forecast of a reading above the 3.9% strike. - [2026-06-10] CPI already breached 3.9% once this cycle: inflation climbed above 4% for the first time in three years, with the index rising 4.2% year-over-year in May 2026, driven by rising energy costs tied to the Iran conflict — proving the headline rate is not structurally capped below 3.9% and can jump quickly on an energy/geopolitical shock, a risk that persists into Q4 2026. - [2026-10-06] NY Fed's Liberty Street Economics (Amiti, Heise, Weinstein) finds tariff pass-through is still building: about a quarter of a tariff increase is passed through to consumer goods prices, and tariffs also raise prices of untaxed U.S.-made goods, since the indirect effect takes longer to materialize... the full effect of a tariff takes about a year to appear , meaning tariff-driven inflation imposed through 2026 is still working through the pipeline into the November reference month. - [2026-10-06] The same NY Fed analysis flags a fresh escalation already locked in: its forecast holds tariffs at their end-of-September 2026 levels, apart from the announced January 2027 tariff increase on Canadian cars, trucks, and auto parts — a known, scheduled tariff hike whose anticipatory price-setting could begin showing up in goods prices before the November data are collected. - [2026-08-28] Minneapolis Fed (Mehrotra/Waugh) documents accelerating, broadening pass-through: As of July tariffs contributed 0.2 to 0.4 percentage points to core inflation, which remains above Fed target levels , and specifically that in apparel, year-over-year inflation rose from 0.3 percent in December 2025 to 3.5 percent in July 2026 — a rapid, ongoing re-acceleration in a tariff-exposed category that is still gathering pace, not fading. - [2026-08-28] The same article finds a second, independent upside force — AI-driven hardware demand: Goods facing higher tariffs are now more likely to exhibit excess inflation, a change from April; AI-related technology faces low tariffs but prices are rising fast, further driving inflation in core goods , meaning two distinct inflationary channels (tariffs and AI-capex-driven goods demand) are compounding rather than offsetting. - [2026-10-07] Energy/food tail risk is live: Reuters-style and St. Louis Fed commentary attribute part of the 2026 reacceleration to tariffs on inputs plus commodity shocks — higher gasoline prices... beef and coffee prices probably remained high, reflecting droughts in prior years and tariffs — showing multiple simultaneous commodity-side pressures (energy, coffee, beef) that could again spike headline CPI the way May 2026 energy did. - [2026-10-07] Near-term momentum is accelerating, not plateauing: Continuum Economics' October 14 CPI preview expects a stronger rise of 0.6% in overall CPI in September, but a moderate 0.2% increase ex food and energy , which — before rounding — would be the strongest monthly headline gain since April 2026, consistent with a steepening path toward higher y/y prints by November. - [2026-10-06] Street-side nowcasts for September already sit a full point above the August print: Jorgai's CPI preview notes the Cleveland Fed's inflation nowcast, updated October 2, projects September CPI up 0.53% for the month and 3.60% over the year... Early consensus trackers put the headline figure near 3.7% — if the acceleration pace of roughly +0.2–0.3pp per month seen June–September continues for two more prints (October, November), the YoY rate could approach or cross 3.9% by the November reference month. - [2026-10-05] Trading Economics flags the same upward revision: its own tracker lists Inflation Rate in the United States is expected to be 3.70 percent by the end of this quarter, according to Trading Economics global macro models and analysts expectations , confirming professional consensus has already moved up roughly 0.3 points from the August reading in a matter of weeks — a pace that, if sustained, closes most of the remaining gap to 3.9% before November. BOTTOM LINE: The single most likely path to YES is a continuation/acceleration of the tariff pass-through and energy/commodity shocks already visible in the data — CPI rose from 3.4% (July/August) toward a nowcast ~3.6–3.7% (September) in barely a month, tariff effects on goods (especially apparel, with a new Canadian auto-parts tariff looming) are described by the NY Fed as still only partially transmitted, and the market has already proven in May 2026 that headline CPI can jump past 3.9% (to 4.2%) on an energy shock; PIIE's named forecasters explicitly argue inflation above 4% by year-end 2026 is "the most likely scenario," making a November print above 3.9% a plausible, evidenced, non-fringe outcome if the current monthly acceleration persists for two more reports. NOT FOUND: No forecaster has published a point estimate specifically for the November 2026 YoY CPI figure (all nowcasts/previews found cover September or October); could not confirm whether the January 2027 Canadian auto-tariff increase has any anticipatory pricing effect large enough to show up in November data specifically.

YES means: the BLS reports headline CPI-U (NSA, one-decimal) up more than 3.9% year-over-year for the twelve months ending November 2026, in the release currently scheduled for December 10, 2026. - [2026-10-06] The Cleveland Fed's model-based nowcast, updated October 6, puts September 2026 headline CPI at 3.60% year-over-year, with core CPI at 2.39% , nearly a full point under the 3.9% strike and with the headline–core gap almost entirely driven by energy, not broad-based price pressure. - [2026-10-04] An independent preview site's ensemble forecast for the September 14, 2026 print, the most immediately forthcoming data point, was Nowflation Forecast (ensemble) 3.58%, Cleveland Fed nowcast 3.57%, Street consensus 3.70% — all clustered 20-30bp below even the lower end of plausible upside paths to 3.9%. - [2026-10-04] A deeper breakdown of the last confirmed (August) print shows the entire headline-core gap is energy: Energy up 2.1% in the month and 16.3% over the year, with gasoline alone up 3.9% in August and 27.4% over the year , while core inflation at 2.4% is close to where the Fed wants it — meaning a sustained breach of 3.9% headline would require either a further large energy spike or an unprecedented core acceleration, not just trend continuation. - [2026-10-05] Oil-futures pricing — the main lever pushing headline above core — shows WTI for November and December 2026 delivery trading near $90 and $89 per barrel respectively, i.e., roughly flat to modestly declining from current spot, not spiking further (https://oilprice.com/futures/wti). - [2026-10-05] Market-based inflation expectations remain tightly anchored: the 5-year and 10-year TIPS breakeven rates sat at just 2.36% and 2.36% on October 5, 2026, far below the 3.9% strike and showing no sign bond investors are pricing a near-term inflation surge. - [2026-10-05] A market commentator notes this anchoring is unusual given other stresses: inflation expectations have been remarkably stable over the last four years... it shows that inflation is NOT the primary cause of elevated real and nominal yields , reinforcing that professional/market participants see no regime shift toward sub-4% becoming super-4%. - [2026-08-14] The Philadelphia Fed's SPF, the most track-recorded professional forecast panel, projects Q4/Q4 2026 headline CPI at 3.6 percent and core CPI inflation at 2.8 percent, little changed from the previous estimates — directly spanning the November 2026 reference period and sitting 30bp under the strike. - [2026-09-23] The key resolution-criteria technicality favors NO on timing: the current continuing resolution provides continuing appropriations... from October 1, 2026, through December 11, 2026 , meaning any renewed funding lapse cannot legally begin before December 12 — one day after the market's December 10 close and the scheduled November-CPI release date — so the shutdown-extension clause cannot be triggered against this contract's own deadline even if Congress fails again. - [2026-09-27] Even looking past the market's close, independent shutdown-odds trackers estimate only a 24 percent chance of a federal government shutdown starting between December 12 and December 31, 2026 , and any such lapse would start after the resolution-critical data are already due out, further insulating the November 2026 release from disruption. - [2026-10-07] Energy's outsized contribution versus the 2025 analog is already fully reflected in the 3.4% August base; absent a fresh commodity shock, mechanical base effects (comparing against the already-elevated November 2025 print) tend to pull the y/y rate down or sideways rather than up further, consistent with every surveyed forecast landing in the 3.4–3.7% band through year-end. BOTTOM LINE: Every available forward-looking signal — the Cleveland Fed nowcast, Street consensus, the Philadelphia Fed SPF, and TIPS market breakevens — clusters 20–50 basis points below the 3.9% strike for the months bracketing the November 2026 reference period, and the only plausible resolution-criteria technicality (a government-shutdown data delay) is structurally blocked because the CR funds the government through December 11, one day past the scheduled release and market close. NOT FOUND: No forecaster or model publishes a number specifically for the November 2026 y/y reading itself (as opposed to September/October or full-year Q4/Q4 figures); no confirmation of what happens procedurally if a shutdown begins exactly December 12 while the November CPI report is still in the field for its December 10 release (i.e., whether the report could already be at the printer/embargoed before any lapse takes effect).