The January 2026 consumer price index showed the headline CPI rising 1.5% year‑on‑year, a slowdown of 0.6 percentage points from 2.1% in the prior month. Core CPI excluding fresh food rose 2.0% year‑on‑year, reaching the BOJ (Bank of Japan) price stability target, but down 0.4 percentage points from 2.4% in December 2025. Notably, core‑core CPI (excluding fresh food and energy) stood at 2.6%, down 0.3 percentage points from 2.9% the prior month but still at a high level. The divergence among these three measures indicates that stabilizing energy prices have pushed down the headline index while underlying inflationary pressures remain persistent.
According to the Statistics Bureau of Japan (MIC), the headline CPI index was 112.9 in January 2026 (year‑on‑year +1.5%), down 0.1 point from 113.0 in the previous month. The year‑on‑year growth rate narrowed by 0.6 percentage points from 2.1% in the prior month, continuing the deceleration trend that peaked at 3.7% in February 2025. This slowdown is largely attributed to a reduction in the year‑on‑year rise in energy prices.
Core CPI (headline excluding fresh food) rose 2.0% year‑on‑year, a 0.4 percentage point decline from 2.4% in December 2025. This level exactly matches the 2% price stability target set by the BOJ, and represents a notable 1.0 percentage point decline over the past three months compared with 3.0% in November and October 2025. The pace of deceleration in core CPI is gentler than that of the headline CPI, suggesting that inflationary pressures excluding fresh food remain relatively stronger.
The most important indicator, core‑core CPI (headline excluding fresh food and energy), rose 2.6% year‑on‑year, down 0.3 percentage points from 2.9% the previous month. However, this level remains 0.6 percentage points above the BOJ’s price stability target, indicating the persistence of underlying inflationary pressure. Although core‑core CPI has been gradually declining since its peak of 3.4% in July 2025, it is the same level as February 2025’s 2.6% and has remained in the high‑2% range over the past year.
Analyzing the divergence pattern among the three measures, the difference between headline CPI and core CPI (impact of fresh food) is 0.5 percentage points, and the difference between core CPI and core‑core CPI (impact of energy) is 0.6 percentage points. In the prior month these gaps were 0.3 and 0.5 percentage points respectively, confirming that in January the downward effect from energy factors expanded. This structure suggests that while the year‑on‑year rise in energy prices has narrowed, price increases in more structural categories—such as services and processed foods—have persisted.
In relation to the BOJ’s price stability target of “2% year‑on‑year consumer price growth,” core CPI reached exactly 2.0% in January 2026. This outcome reflects a 1.0 percentage point decline from 3.0% in February 2025 over the course of a year, indicating that the deceleration trend has moved inflation toward the target.
However, core‑core CPI at 2.6% remains 0.6 percentage points above the target, making it difficult to conclude that inflationary dynamics are fully stabilized. Core‑core CPI fell 0.8 percentage points over eight months from its July 2025 peak of 3.4%, but the pace of decline has been slow—about 0.1 percentage point per month on average. At that pace, it would take roughly six months for core‑core CPI to converge to the 2% target.
Looking in detail at core CPI’s path, it remained around a high level of about 3.5% from April to June 2025, then entered a clear downtrend from July onward. After a brief uptick (July 3.1%, August 2.7%, September 2.9%, October 3.0%), it has fallen for three consecutive months: November 3.0%, December 2.4%, and January 2.0%. This slowdown is mainly attributed to the shrinking year‑on‑year rise in energy prices, while the elevated core‑core CPI suggests continued upward pressure on service prices backed by wage increases and delayed pass‑through of past import cost rises.
For BOJ policy management, core CPI’s arrival at the 2% target supports steps toward policy normalization, but the stickiness of core‑core CPI indicates persistent underlying inflationary pressure and room for further policy adjustment. At the same time, the headline CPI’s decline to 1.5% implies easing inflationary pressure experienced by households, reducing the urgency for rapid policy tightening.
According to BOJ statistics, the Corporate Goods Price Index (CGPI) was 128.4 (2020=100) in January 2026, up 0.3 point from 128.1 in the previous month. CGPI has risen for four consecutive months since September 2025 (127.0), indicating renewed upward pressure on upstream inter‑firm transaction prices.
Over the past year CGPI rose from 125.5 in February 2025 to 126.6 in April, then was flat around 126.5–126.4 in May–June. It rose to 126.7 in July, dipped to 126.4 in August, and from September onwards moved clearly upward to 127.0, 127.6, 128.0, 128.1, and 128.4. This movement suggests a re‑emergence of upward pressure from raw material and import costs in inter‑firm transactions.
Analyzing the pass‑through from upstream CGPI to downstream CPI, CGPI has been on an uptrend since September 2025 while CPI has been decelerating over the same period, creating a divergence between the two indicators. CGPI rose 1.4 points (1.1%) from 127.0 in September 2025 to 128.4 in January 2026, whereas headline CPI increased 0.9 point from 112.0 to 112.9 over the same period (0.8% in index terms) but its year‑on‑year rate decelerated from 2.9% to 1.5%.
This divergence suggests that firms may not be fully passing upstream cost increases onto consumer prices. Given that core‑core CPI remains elevated at 2.6%, past pass‑through has proceeded to some extent, but there is likely a lag of several months before the recent CGPI rise fully manifests as upward pressure on CPI.
From the perspective of firms’ capacity to absorb costs, the continuation of CGPI increases alongside slowing CPI growth implies that firms are compressing profit margins to absorb costs. However, the BOJ Tankan business conditions DI discussed below shows an improving trend, suggesting that aggregate corporate profits have not deteriorated and that productivity gains or non‑price cost reductions may be helping to offset margin pressure.
METI reports that the seasonally adjusted industrial production index was 102.2 as of February 2025 (month‑on‑month +2.3%). This figure is 11 months prior to the target month of January 2026, so direct comparison is difficult. Looking at the available period, the index rose from 101.4 in March 2024 to 102.2 in February 2025 (a 0.8 point increase), but fluctuated between 100.5 and 103.0 over that window, with no clear trend.
Monthly changes in the production index show positive months—July 2024 +1.8%, October 2024 +1.8%, February 2025 +2.3%—but also negative months such as August 2024 −2.0% and November 2024 −1.7%, indicating large month‑to‑month volatility. This instability suggests that production activity is not on a strong expansionary trend.
The Cabinet Office’s Coincident Index (CI) stood at 114.9 in September 2025. This is four months before the analysis month, but examining available data shows a gradual decline from a peak of 117.0 in February 2025 to 115.8 in March, 115.7 in April, 115.5 in May, 115.9 in June, 114.3 in July, 113.2 in August, and 114.9 in September—indicating a mild downward tendency. The Leading Index bottomed at 104.5 in April 2025 and then recovered—104.6 in May, 105.3 in June, 106.1 in July, 106.8 in August, and 108.0 in September—but remains below the January 2025 level of 108.1.
Assessing consistency between the real economy and price movements, the mild decline in the Coincident Index since early 2025 is consistent with the CPI deceleration into January 2026. Slowing economic activity weakens demand‑side inflationary pressure and reduces firms’ price‑setting power. Nevertheless, core‑core CPI remaining at 2.6% suggests that supply‑side factors—wage rises and delayed pass‑through of past cost increases—are still supporting prices despite demand weakness.
The recovery in the Leading Index implies that the economy may remain resilient in coming months, but the softness in the Coincident Index indicates current economic activity lacks vigor. Under these conditions, the CPI slowdown reflects a normal mechanism whereby weaker demand restrains price increases, and does not indicate an excessive build‑up of inflationary pressure.
BOJ’s Tankan quarterly survey shows that the business conditions DI for Q4 2025 was 15 for large‑manufacturing firms (up 1 point from 14 in the previous survey) and 34 for large non‑manufacturing firms (unchanged). The large‑manufacturing DI has improved for three consecutive quarters from 12 in Q1 2025, indicating a gradual recovery in manufacturing conditions.
The DI for midsize manufacturing firms improved to 16 (from 12 previously), and the DI for small manufacturing firms improved to 6 (from 1 previously). The larger improvements among midsize and small firms relative to large firms indicate broad‑based improvement across firm sizes, suggesting an improved environment for price pass‑through.
Looking at prospective business sentiment, large manufacturing firms expect a DI of 12, a 3‑point deterioration from the current 15, indicating caution. Large non‑manufacturing firms expect 28, down 6 points from the current 34. This cautious outlook likely reflects uncertainty in overseas economies and unclear domestic demand prospects.
Assumed exchange rates in the survey show an overall average of 147.06 JPY/USD for all firms and industries in Q4 2025, and 146.48 JPY/USD for large manufacturing firms. These are adjusted toward yen depreciation compared with previous survey assumptions of 145.68 and 145.61 JPY/USD, indicating firms are assuming a weaker yen. Yen depreciation raises import costs and can push up CGPI, but the CPI slowdown as of January 2026 suggests that exchange rate effects have not yet fully fed into consumer prices, and firms’ cost absorption efforts have mitigated the pass‑through.
The simultaneous improvement in business sentiment DI and CPI deceleration suggests firms are advancing price pass‑through while maintaining profits through productivity gains and cost reductions. Core‑core CPI remaining at 2.6% indicates that firms have steadily passed past cost increases into prices, while the headline CPI slowdown reflects easing consumer burden due to stabilizing energy prices.
TOPIX rose from 3,629.7 on January 23, 2026 to 3,808.48 on February 20, 2026, an increase of 178.78 points (4.9%). The rise since early February was particularly notable: from 3,536.13 on February 2 to 3,882.16 on February 12, a gain of 346.03 points (9.8%). Although the index eased somewhat to 3,808.48 by February 20, it remained at a high level.
Multiple factors likely underlie the equity rally, and in terms of the price environment, core CPI reaching 2.0% may have reduced fears of rapid BOJ tightening, improving market sentiment. The headline CPI’s fall to 1.5% suggests that excessive inflationary pressure is receding and supports a view that negative effects on corporate profits and household consumption will be limited.
The sharp rise from February 9–12 (from 3,783.57 to 3,882.16, a 2.6% increase) likely reacted to positive developments, and in the context of inflation may reflect rising expectations for slowing CPI ahead of the usual late‑February release of January CPI data. Subsequent correction from February 13–17 (from 3,882.16 to 3,761.55, a 3.1% drop) appears driven by profit‑taking and external factors.
Summarizing the link between equities and the price environment, moderate inflation (core CPI at 2.0%) signals firms’ pricing power and profitability, whereas excessive inflation (headline CPI above 3%) would weaken households’ real purchasing power and suppress consumption. The January 2026 price environment appears closer to a balanced state, and the equity rise can be interpreted as markets welcoming that stabilization.
Nonetheless, the CGPI uptrend and core‑core CPI stuck at 2.6% indicate that upside inflationary pressure has not fully disappeared. Market participants remain attentive to the possibility of additional BOJ rate hikes, overseas economic developments, and exchange rate fluctuations as they assess the outlook for prices and monetary policy.
Overall, January 2026 price movements show that headline CPI and core CPI decelerations are primarily driven by a reduced year‑on‑year rise in energy prices, while core‑core CPI remains elevated at 2.6%. This structure points to stickiness in inflation excluding energy, reflecting service price increases backed by wage gains and continued delayed pass‑through of past import cost increases.
The CGPI uptrend since September 2025 indicates renewed upstream price pressure that could spill over to downstream CPI in coming months. However, the weak Coincident Index and cautious forward business sentiment suggest demand‑side inflationary pressure is limited. Under this supply‑demand balance, it is unlikely that the full extent of CGPI increases will be passed through to CPI; part of the pressure is expected to be absorbed by firms or mitigated by productivity gains.
For BOJ monetary policy, core CPI reaching the 2.0% target is supportive of policy normalization in terms of achieving the price objective. Yet core‑core CPI at 2.6% signals persistent underlying inflationary pressure, leaving room for further policy adjustment. Conversely, the headline CPI’s decline to 1.5% and the weaker Coincident Index warn that rapid policy tightening could unduly suppress economic activity, so cautious policy management is warranted.
For households, the headline CPI slowdown implies relief from felt price increases and a potential improvement in real purchasing power. However, with core‑core CPI still at 2.6%, price rises for everyday food and services continue, so households’ burden remains elevated. Unless wage growth outpaces price increases, gains in real income will be limited and a strong consumption recovery is unlikely.
Key developments to watch are: (1) whether the CGPI uptrend continues, (2) whether the deceleration pace of core‑core CPI accelerates, and (3) whether recovery in the Leading Index translates into improvement in the Coincident Index. These dynamics will be critical in determining the underlying price trend and the direction of monetary policy. At present, inflation is trending down but underlying upward pressure is persistent, and the BOJ is expected to continue cautious policy management while monitoring both prices and economic activity closely.
コアCPI: Core CPI (consumer price index excluding fresh food). By excluding volatile fresh food items affected by weather, it captures the underlying trend of prices. The BOJ uses core CPI in assessing its 2% year‑on‑year price stability target.
コアコアCPI: Core‑core CPI (consumer price index excluding fresh food and energy). By removing volatile energy prices as well, it indicates more persistent inflationary pressure. It is composed of items like service prices and processed foods that more closely reflect demand‑supply conditions and wage trends.
企業物価指数（CGPI）: Corporate Goods Price Index (CGPI). An index showing price trends for goods traded between firms. It captures upstream price movements earlier than the consumer price index (CPI) and is used to analyze the price‑pass‑through structure where changes in raw material and intermediate input costs take several months to affect consumer prices.
景気動向指数（CI）: Coincident and related Composite Indexes (CI). These indices synthesize multiple economic indicators to assess current business conditions and prospects. The Leading Index signals future economic activity, the Coincident Index reflects current conditions, and the Lagging Index confirms past trends. Movements indicate expansion or contraction.
日銀短観業況判断DI: BOJ Tankan business conditions DI. A quarterly BOJ survey where the DI is the percentage of firms reporting "favorable" conditions minus those reporting "unfavorable." A widening positive DI indicates improvement, while a negative or shrinking DI indicates deterioration. It helps assess firms' ability to pass through cost increases.
価格転嫁: Price pass‑through: firms passing cost increases such as higher raw material or labor costs into selling prices. The process by which rises in upstream indices like CGPI are transmitted to downstream consumer prices (CPI), typically with a multi‑month lag.
実質購買力: Real purchasing power: the quantity of goods and services that can be purchased with nominal income adjusted for price levels. If inflation outpaces wage growth, real purchasing power declines and can restrain household consumption.
This column was automatically generated by AI integrating Cabinet Office GDP data, Bank of Japan statistics, e-Stat public statistics, and market data as a macroeconomic analysis resource. This is not a recommendation to invest in any specific security. Please make investment decisions at your own responsibility and consult professionals as needed.