The most-watched inflation series in the world published a report this week with no annual inflation rate in it. Not a low rate, not a revised rate — no rate. In the October CPI release, the 12-month percent change column for headline and core is a dash.
That is a statistical accident, not a slowdown, and the market traded it anyway.
Why the annual figure does not exist
A year-over-year change needs two data points twelve months apart. The BLS did not collect October 2025 price data during the 2025 lapse in appropriations, so there is no October 2025 index level to divide this month’s level by. Without the base, the ratio cannot be computed, and the agency does not estimate it — it leaves the cell blank.
The practical consequences:
- No anchor for the Fed’s 2% target. Policy is set against an annual rate that this month does not exist.
- Revisions will be awkward. When the base month is eventually reconstructed, the annual figure may land far from where monthly prints implied.
- Headlines will be wrong. Any article quoting an “October inflation rate” of 3-point-something this week is estimating, whether it says so or not.
What the report did say
The monthly detail is intact, and it is hawkish at the margin.
| Measure | October 2026 | September 2026 |
|---|---|---|
| Headline CPI-U, m/m | +0.4% | +0.6% |
| Core CPI, m/m | +0.3% | +0.3% |
| Shelter | +0.3% | — |
| Food | +0.5% | — |
| Energy | +0.7% | +5.2% |
| Transportation services | +0.8% | — |
| Used cars and trucks | -1.2% | — |
Shelter alone accounted for more than 30% of the monthly increase. Energy decelerated hard from September’s surge — gasoline rose 1.0% after 9.1% — but that is a smaller shock, not relief. Core has now printed 0.3% three months running, in August, September and October.
Annualise that monthly pace and you get an inflation rate, just not an official one: (1.003)^12 − 1 ≈ 3.7% on core, and (1.004)^12 − 1 ≈ 4.9% on headline. Both are well above target. Both are three data points, not twelve.
Only a few lines carry a genuine annual figure: gasoline +37.4%, used vehicles -3.3%, new vehicles +0.7%. Those three tell you where the base effect is doing the work, and it is not in the places that matter for rate policy.
What the Fed does with a base-less CPI
It leans on everything else. With no annual inflation anchor, the 8-9 December decision rests on three things: the monthly trend (0.3% core, persistent), the labour market, and financial conditions.
Markets have already decided. CME FedWatch fully prices a 25 basis point hike in December, with 13.6% odds of a half-point move — odds that were near zero before the release. The DXY rose 0.3% to 102.05 on the day, Treasury yields jumped and equity futures slipped.
The calendar wrinkle matters more than the print: November CPI lands on 10 December, two days after the FOMC concludes. The Fed will decide without the next inflation report. That is unusual, and it is why the December statement’s forward guidance will probably do more work than the decision itself.
The trade map
Every leg below sits on one account at UZFX — 26 currency pairs, gold and silver, index CFDs, spread-only pricing with no ECN tier, a $10 minimum deposit and a 0.01-lot minimum.
The dollar leg. EUR/USD at 1.1172 and GBP/USD at 1.3349 are the cleanest expressions of a hawkish Fed, because both face central banks that are also tightening — the BoE hiked to 4.00% on 5 November. USD/JPY near 158.7 is the most leveraged version of the same idea and the most dangerous, because the MOF has already spent ¥15.4 trillion this year leaning against it.
Gold. XAU/USD is holding above $4,000, last around $4,043. A hawkish Fed is normally a headwind for a non-yielding asset; gold ignoring that is itself information about demand for inflation protection when the official inflation series is incomplete.
Indices. The S&P 500 near 7,521 and the Nasdaq near 25,066 are priced for earnings, not for a data gap. Duration is where a repricing of the December meeting shows up fastest.
Sizing a release trade when the number is missing
This is the part most retail accounts get wrong. On a $10 account at 0.01 lots of gold, one dollar of gold movement is one dollar of P&L. A 2% gap on 0.10 lots is about $809 — a margin call several times over, at 30:1 leverage on the ASIC entity that position needs roughly $1,348 of margin before it even moves.
Two practical rules:
- Trade the reaction, not the print. Spreads widen around the 21:30 GMT+8 release and the first two minutes are a liquidity auction, not a price.
- Check which entity holds your account. ASIC retail leverage is 30:1 on majors; the offshore entity offers up to 1:500. The same position size is a different risk on each.
What to watch next
- 27 November — PCE, the Fed’s preferred measure, which does have a base.
- 8-9 December — FOMC decision, fully priced for +25bp.
- 10 December — November CPI, two days late for the meeting that needed it.
Until a year-over-year rate exists again, treat every “annual inflation” figure you read as somebody’s arithmetic, and check whether they showed it.
FAQ
Q: Is the missing 12-month rate a sign inflation data is being suppressed?
No. The BLS published every monthly figure it collected; it could not compute a ratio against a month it never surveyed. The gap is documented in the release notes, and the agency’s own tables show the dash rather than an estimate.
Q: Should I trade the dollar on the monthly number alone?
The monthly number is what the market is actually trading, so yes — but with the understanding that it is a thinner signal than usual. Position sizing should reflect that the next official annual rate arrives after the Fed has already moved.
Q: Does a data gap change how CFD brokers price USD pairs?
No. Pricing follows the interbank market and liquidity providers, which traded the monthly detail immediately. What changes is volatility around the release and the spread you pay for it.