Table of Contents
This service uses statistical data published by the Bank of Japan, but the content of this service is not guaranteed by the Bank of Japan.
This service uses statistical data published by the Bank of Japan, but the content of this service is not guaranteed by the Bank of Japan.
The financial environment in March 2026 highlights a clear divergence between the BOJ's normalization of monetary policy and recent price developments. BOJ statistics show the unsecured overnight call rate (O/N) at 0.728%, unchanged for three consecutive months, while the monetary base (MB) contracted at an accelerated pace, with year-on-year growth of -11.6%. MIC (Statistics Bureau) CPI data show core CPI (excluding fresh food, overall) at 1.6% year-on-year, down 0.4 percentage points from 2.0% the previous month, marking the lowest level since July 2025. At the same time, the FX market saw USD/JPY weaken to 158.6 from 155.1 a month earlier, a 3.5-yen depreciation, exposing a structural contradiction in which quantitative tightening and currency weakness coexist. The Cabinet Office coincident index (CI) fell to 116.3 from 117.9, a 1.6-point decline, raising concerns about a slowdown in the real economy.
From January to March 2026, the BOJ has combined a hold in policy rates with balance-sheet reduction. The unsecured overnight call rate (O/N) has remained at 0.728% with no change since January 2026. Meanwhile the monetary base stood at 570.8 trillion yen, down 10.1 trillion yen from 580.9 trillion yen the previous month and recording a year-on-year decline of -11.6%. The rate of shrinking has accelerated from -10.6% in the prior month and -9.5% the month before that, signaling an intensification of quantitative tightening.
BOJ monthly MB data show a decline from 589.4 trillion yen in January 2026 to 570.8 trillion yen in March—an 18.6 trillion yen drop (-3.2%) over two months. This contraction reflects the phased reduction of JGB purchase operations and indicates steady progress on the "quantity" aspect of normalization. The decision to keep policy rates unchanged can be interpreted as an attempt to balance confirmation of sustainable achievement of the price target with consideration for the real economy.
Money stock M2 rose to 1280.1 trillion yen, up 5.2 trillion yen from 1274.9 trillion yen the previous month, confirming that private credit creation is functioning despite MB shrinkage. The M2/MB ratio (credit multiplier) increased to 2.24 from 2.19 the previous month, suggesting improved efficiency in financial intermediation.
In short-term money markets, the unsecured overnight call rate at 0.728% has been fixed for three months, indicating clear communication of BOJ policy intent to markets. As of January 2026, the average contracted lending rate was 1.383%, producing a spread of 0.655 percentage points over the call rate. This level reflects financial institutions' credit risk and term premia and shows that the transmission from money-market rates to corporate lending rates is functioning.
Evaluating transmission from policy to lending rates, a call rate of 0.728% versus a lending rate of 1.383% implies a roughly 1.9x multiple. This multiple balances banks' revenue needs and firms' borrowing costs and can be seen as appropriate interest-rate formation during monetary normalization. However, lending rate data since February 2026 have not been published, so the most recent transmission dynamics must await the next data release.
MIC's February 2026 CPI data clearly indicate a slowdown in inflationary pressure. The headline CPI index stood at 112.2 (year-on-year 1.3%), down from 112.9 (1.5%) the previous month. Core CPI (excluding fresh food) fell to 1.6% year-on-year from 2.0%—0.4 percentage points lower—bringing it below the BOJ's 2% price-stability target for the first time in eight months. Core-core CPI (excluding fresh food and energy) eased slightly to 2.5% from 2.6% but remains above 2%.
The 0.9-point gap between core CPI at 1.6% and core-core CPI at 2.5% signals downward pressure from energy prices. In November 2025, core and core-core CPI were both at 3.0% and aligned, but core CPI has since led the decline, reflecting the growing influence of energy factors. The 0.3-point difference between headline CPI (1.3%) and core CPI (1.6%) reflects fresh-food price movements.
BOJ corporate goods price index (CGPI) rose to 129.5 in March 2026 from 128.3 in the prior month, an increase of 1.2 points, or 0.9% month-on-month. From January 2026's 128.4 to March, CGPI climbed 1.1 points (0.9%), indicating renewed upward pressure on upstream goods prices.
Comparing CGPI (upstream goods prices) with CPI (downstream consumer prices), CGPI was 128.3 in February 2026 (month-on-month -0.1%) while core CPI had been decelerating at 1.6% year-on-year. The sharp rise in CGPI to 129.5 in March suggests that, after a lag of several months, upstream price pressure could transmit to CPI.
The corporate service price index (SPPI) reached 112.1 in February 2026, up 0.2 points from 111.9 the prior month. Looking at SPPI's trajectory—112.2 in October 2025, rising to 112.5 in December, then falling to 111.9 in January 2026 and rebounding to 112.1 in February—the underlying trend in service prices remains in a range, showing relative stability compared with goods prices (CGPI). Pass-through from goods to services appears limited, implying weak pricing power in the services sector.
METI's Index of Industrial Production (IIP) stood at 102.2 as of February 2025 (month-on-month 2.3%), rebounding from 99.9 the previous month. However, production has largely hovered around the 100 mark from late 2024 into early 2025, indicating only limited vigor in industrial activity. After peaking at 103.0 in October 2024, the index has generally moved around the low-101 area.
The Cabinet Office coincident index (CI) fell to 116.3 in February 2026 from 117.9, a 1.6-point decline. Since January 2026's 117.9 was the most recent peak, the February drop suggests a moderation in the pace of expansion. The leading index rose slightly to 112.4 from 112.1, maintaining a cautious outlook for future growth.
The gap between the CI coincident index at 116.3 and IIP at 102.2 (February 2025) reflects that the CI is a composite of indicators including employment and consumption beyond production. The combination of sideways production and relatively high CI suggests domestic demand—centered on services—remains resilient.
Among BOJ measures of underlying inflation, the trimmed mean (upper and lower 10% trimmed weighted average) stood at 2.2% in February 2026, down 0.1 percentage points from 2.3% the previous month. This measure, which strips out temporary price swings to capture the core trend, has declined for three consecutive months from 2.7% in November 2025. The 0.6-point gap between the trimmed mean at 2.2% and core CPI at 1.6% indicates that core CPI is more sensitive to energy-price swings, while the trimmed mean reflects a steadier underlying trend.
The weighted median rose to 1.7% in February 2026 from 1.6% the prior month. This median-based indicator is less affected by extreme movements. The weighted median at 1.7% remains 0.5 percentage points below the trimmed mean at 2.2%, suggesting the distribution of price changes is skewed upward.
The trimmed mean had been in the 2.8–3.0% range from June to October 2025, but has declined to 2.7% in November and then to 2.3% and 2.2%, indicating a clear deceleration in underlying inflationary pressure. This slowdown increases uncertainty over the sustainability of achieving the BOJ's 2% price target. While the gap—in which core CPI at 1.6% sits below the trimmed mean at 2.2%—could be interpreted as energy-driven and possibly temporary, the decline in the trimmed mean itself suggests the underlying inflation momentum is weakening, warranting a cautious assessment of persistence.
In March 2026, USD/JPY moved to 158.6, from 155.1 the previous month—a 3.5-yen (2.3%) depreciation. This level exceeds January 2026's 156.7, representing the weakest yen in three months. BOJ data show the nominal effective exchange rate (NEER) at 70.1 in February 2026, up from 69.9 the prior month, which contrasts with the USD/JPY-driven yen weakness.
A USD/JPY rate of 158.6 is not consistent with a policy rate of 0.728%. In a tightening cycle, higher interest rates typically support currency appreciation, yet the opposite has occurred. External factors such as US interest-rate movements and geopolitical risk may be at play, but the provided data do not permit definitive attribution.
Examining the link between exchange rates and CGPI: at USD/JPY 155.1 in February 2026, CGPI was 128.3; as USD/JPY weakened to 158.6 in March, CGPI rose to 129.5. This confirms the pass-through path—yen depreciation → higher import prices → CGPI increase—is functioning. Over coming months, this CGPI rise could transmit to CPI, representing a risk of reversing recent downward pressure on consumer prices.
M2 stood at 1280.1 trillion yen in March 2026, up 5.2 trillion yen (0.4%) from 1274.9 trillion yen the prior month. Compared with January 2026's 1279.1 trillion yen, the three-month increase is only 1.0 trillion yen (0.1%), indicating a slow expansion pace in money stock.
The M2-to-MB ratio against an MB of 570.8 trillion yen is 2.24, up from 2.19 the previous month. The rise in this credit multiplier shows that, despite MB contraction, private banks' lending activity has been maintained. Against an MB of 589.4 trillion yen in January 2026, the M2/MB ratio was 2.17, so the multiplier rose by 0.07 points over two months.
Despite a large year-on-year MB contraction of -11.6%, the positive month-on-month M2 suggests that improved intermediation efficiency is mitigating the impact of quantitative tightening on the real economy. Nevertheless, M2's modest monthly expansion of 0.4% points to limited room for credit expansion and suggests that funding supply to the real economy may lack vigor.
The BOJ Tankan Q1 2026 survey shows that the large-manufacturing business conditions DI improved to 17 from 15 in Q4 2025. The outlook DI rose to 15 from 12, indicating a gradual improvement in corporate sentiment. Large non-manufacturing DI improved to 36 from 34, with the outlook DI holding steady at 28.
For medium-sized manufacturers, the DI remained flat at 16; small manufacturers' DI rose to 7 from 6. Improvement has been led by large firms, with limited spillover to SMEs. The 10-point gap between large manufacturers' DI of 17 and small manufacturers' DI of 7 points to persistent size-related disparities.
The Tankan assumed exchange rate in Q1 2026 is 150.1 for all firms and industries and 148.91 for large manufacturers. Compared with the market USD/JPY of 158.6 in March 2026, these assumptions understate yen weakness by 8.5 yen for all firms and industries and by 9.7 yen for large manufacturers. The actual depreciation relative to firms' expectations represents an earnings upside for exporters but also raises downside pressure via higher import costs.
The improvement in business-condition DIs alongside a decline in the CI coincident index (117.9 → 116.3) highlights a divergence between corporate sentiment and objective real-economy indicators. Tankan DIs reflect subjective firm expectations, whereas CI aggregates objective data; thus this gap may reflect firms' forward-looking optimism outpacing actual economic momentum.
Ministry of Finance trade statistics show a trade surplus of JPY 94.8 billion in December 2025, down from a JPY 306.0 billion surplus in November 2025. Exports totaled JPY 10,407.7 billion and imports JPY 10,312.9 billion, with both exceeding the JPY 10 trillion level.
Imports rose from JPY 10,009.1 billion in October 2025 to JPY 10,312.9 billion in December, an increase of JPY 3,038 billion (3.0%). This import rise likely relates to yen weakness (data are not provided beyond October 2025, but the FX trend shows depreciation from January 2026's 156.7 to March's 158.6). Examining the transmission path—higher imports → CGPI increase—CGPI moved from 128.3 in December 2025 to 129.5 in March 2026, confirming that import-price pressures are passing through to upstream goods prices.
The narrowing of the trade surplus reflects sluggish export growth and rising imports. Exports rose from JPY 9,708.9 billion in November to JPY 10,407.7 billion in December (JPY 698.8 billion, 7.2%), possibly influenced by seasonal year-end factors. Imports increased from JPY 9,402.9 billion to JPY 10,312.9 billion (JPY 910.0 billion, 9.7%), so import growth outpaced exports.
A shrinking trade surplus weakens yen demand and exerts depreciation pressure. The yen's move to USD/JPY 158.6 in March 2026 is consistent with trade dynamics. If the yen weakens further, the import-price → CGPI → CPI pass-through could strengthen, reversing the recent downward pressure on consumer prices.
TOPIX fell from 3,627.07 on March 17, 2026 to 3,497.86 on March 31, a drop of 129.21 points (-3.6%). The month’s high was 3,717.41 on March 18 and the low 3,542.34 on March 30, yielding a volatility range of 175.07 points. On April 1 the index sharply rebounded to 3,670.90 (+4.95%), thereafter trading in the 3,600–3,700 range.
Late-March declines (March 23: -3.41%; March 30: -2.94%; March 31: -1.26%) likely reflected month-end position adjustments and external factors. With the call rate steady at 0.728%, interest-rate movements do not explain the March price action; other drivers appear to dominate.
Yen weakness to USD/JPY 158.6 supports export firms' earnings expectations and can be a positive for equity prices. Yet the late-March sell-off indicates other downward pressures outweighed yen-related gains. The April 1 rebound likely reflected month-beginning buybacks and changes in external conditions.
TOPIX intramonth volatility (range 175.07 points ÷ average ≈ 4.8%) signals elevated market uncertainty. With policy rates unchanged, market moves suggest non-policy factors—international markets, corporate earnings expectations, geopolitical risks—are leading market direction.
Evaluating CGPI 129.5 (March 2026) → CPI (core CPI 1.6% in February 2026) shows that upstream price increases have not yet been fully passed through to consumer prices. CGPI rose 1.1 points (0.9%) from 128.4 in January to 129.5 in March, while core CPI fell from 2.0% in January to 1.6% in February. This inverse relation indicates either a time lag in pass-through or weak corporate pricing power.
The level gap between SPPI 112.1 (February 2026) and CGPI 128.3 suggests differing price-formation mechanisms for goods and services. The stability of SPPI (112.2 in October 2025 → 112.1 in February 2026) indicates service-sector prices are relatively rigid, so pass-through from goods to services is limited. This limitation can weigh on service-sector profitability and constrain wage growth.
Examining the path call rate 0.728% → lending rate 1.383% (January 2026) → IIP 102.2 (February 2025), interest-rate impacts on production appear limited. IIP declined only 0.8 points from 103.0 in October 2024 to 102.2 in February 2025, during a period when the call rate was stable at 0.728%, so a clear causal link between interest-rate levels and production is not evident.
Despite MB year-on-year -11.6% contraction, M2 has remained positive month-on-month, indicating that the usual tightening channel (MB contraction → M2 contraction → credit squeeze) is not operating fully; instead, an increase in the credit multiplier is cushioning the real economy. While this reflects improved intermediation efficiency, it also suggests a weakened transmission of monetary policy.
The chain USD/JPY 158.6 → CGPI 129.5 → CPI (future pass-through) is functioning, but the expected policy channel call rate 0.728% → yen appreciation is not. Rather than the usual yen appreciation associated with tighter policy, yen depreciation has occurred. This pattern implies Japan's interest rates remain low relative to foreign rates, or structural factors such as current-account dynamics and risk premia are exerting yen-depreciating pressure.
The Tankan assumed exchange rate of 150.1 (all firms) compared with the actual USD/JPY 158.6—a gap of 8.5 yen—illustrates the divergence between corporate expectations and market reality. Whether this gap narrows (yen appreciation) or widens (further yen depreciation) will depend on BOJ policy stance and overseas interest-rate developments.
The decline in the CI coincident index to 116.3 (February 2026) alongside improved Tankan DI for large manufacturers (17 in Q1 2026) highlights a divergence between objective indicators and subjective firm-level sentiment. CI aggregates realized data on production, employment and consumption, while Tankan DIs reflect forward-looking company sentiment. This gap suggests firms are optimistic about the outlook even as real-economy improvement slows.
Whether firms' expectations are validated by subsequent real-economy gains or are revised downward will be key to assessing the sustainability of the recovery. The Tankan outlook DI of 15 for large manufacturers is 2 points below the current DI of 17, indicating firms themselves retain a degree of caution.
March 2026 data indicate the BOJ faces a critical judgment on the next policy phase. Core CPI's slowdown to 1.6% puts it below the 2% target, heightening uncertainty about the sustainability of price-target attainment. At the same time, the trimmed mean at 2.2% and core-core CPI at 2.5% remain above 2%, so underlying inflation pressures have not disappeared.
Yen depreciation to USD/JPY 158.6 could, in coming months, transmit via CGPI into CPI. The 0.9% month-on-month rise in CGPI to 129.5 reflects import-price effects; if yen weakness persists, the recent downward pressure on CPI could reverse, creating a case for the BOJ to reassess the sustainability of achieving its price objective and potentially consider further rate hikes.
Conversely, the decline in the CI coincident index (117.9 → 116.3) and the sideways trend in industrial production raise concerns about real-economy slowdown. In that context, further rate hikes would increase downside risks to growth. The BOJ faces a difficult balancing act between price stability and economic growth.
The MB year-on-year contraction of -11.6% shows quantitative tightening is well under way. Whether that pace is maintained or slowed will depend on the trade-off between price developments and real activity. The modest maintenance of M2 suggests credit intermediation remains healthy, but the slow expansion implies weak funding demand.
Improvements in Tankan DIs show resilient corporate sentiment, yet the 8.5-yen gap between assumed and actual exchange rates highlights both upside profit potential for exporters and growing exchange-rate risk. FX developments will be a major determinant of corporate earnings and inflation dynamics going forward, and thus a central input into monetary-policy decisions.
At the next policy meeting, the BOJ will need to weigh the conflicting signals of CPI deceleration and yen weakness. Emphasizing sustained achievement of the price target would argue for keeping policy on hold; prioritizing the inflation risk from yen depreciation would argue for additional rate hikes. The structural contradictions in the data suggest the BOJ is approaching a potential policy turning point.
Core CPI: Consumer Price Index excluding fresh food. The BOJ places particular emphasis on this measure when assessing achievement of the 2% price-stability target.
Core-core CPI: Consumer Price Index excluding fresh food and energy. Captures underlying price trends removing transitory energy-related movements.
Monetary base: The total currency supplied by the BOJ: the sum of cash currency and BOJ current accounts. A key indicator for quantitative policy.
Credit multiplier: The ratio of money stock (M2) to the monetary base (MB). Indicates the efficiency of private financial institutions' credit creation.
CGPI: Corporate Goods Price Index. An upstream price indicator reflecting prices of goods traded among firms; a leading indicator for CPI.
SPPI: Service Producer Price Index. Indicates price movements of services traded among firms; an upstream service-price indicator.
Trimmed mean: The CPI weighted average after trimming the top and bottom 10%. Used by the BOJ to capture core inflation by excluding temporary price swings.
CI (Composite Index): A composite business-cycle index that aggregates multiple economic indicators. The coincident index reflects the current state, the leading index signals conditions several months ahead.
Tankan DI: BOJ Tankan business conditions diffusion index: the percentage of firms reporting "good" minus those reporting "poor."
Effective exchange rate: An exchange-rate index weighted by trade shares across multiple currencies. Includes nominal effective exchange rate (NEER) and real effective exchange rate (REER).
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.