BOJ Raises Rates to 1.0%; Japanese Bank Stocks Still Have Upside

Overview

This Goldman Sachs report analyzes the implications for Japan’s banking sector of the Bank of Japan’s monetary policy meeting (MPM) on June 15–16, which raised the policy rate from 0.75% to 1.0%. The central conclusion is that the rate-hiking cycle has been confirmed, major banks have already increased deposit rates, yet the market has not fully priced in these developments, leaving bank stocks with additional upside potential.

Core views

The report advances three key insights: Upside in Earnings Guidance: With the policy rate now at 1.0%, banks previously guiding on 0.75% may raise their FY3/27 profit forecasts. For example, Yokohama Financial Group has proactively disclosed that a rate hike through FY3/28 would boost pre-tax profit by about JPY 14 billion (approximately JPY 10 billion after tax), lifting ROE by roughly 0.7 percentage points. Other banks are expected to follow suit. Higher Probability of Meeting Mid-Term Plans: The BOJ’s confirmation of an ongoing rate-hiking cycle has bolstered confidence that banks will achieve or exceed their FY3/29 mid-term plans, which assume policy rates of 0.75%–1.0%. So far, banks’ deposit beta—how much they pass on rate increases to depositors—has aligned with expectations. For instance, MUFG, SMFG, and Mizuho have raised standard deposit rates by 10 bps to 0.40%, bumped short-term prime rates by 25 bps to 2.375%, and maintained deposit betas around 40%. Valuation Revaluation Potential: The report contends that current bank stock P/B ratios reflect only a policy rate of roughly 0.75%–1.0%, whereas the BOJ’s signals suggest further normalization is still possible. Given light market positioning amid Middle East uncertainties, the report draws parallels to the post-December 2025 hike rally—when tariffs weighed on sentiment—and anticipates a similar revaluation and short-covering phase.

Analysis framework

Goldman Sachs employs an analytical framework linking “policy rate transmission → bank pricing behavior → quantified earnings impact → valuation revaluation space.” It begins by tracking shifts in the BOJ’s policy stance, then monitors adjustments in deposit rates and loan pricing (deposit beta analysis). Next, it compares banks’ earnings guidance assumptions with actual rates, using the P/B-implied rate as a valuation anchor to assess how fully the market has priced in the rate-hiking cycle. This approach seamlessly integrates macroeconomic policy, micro-level bank pricing, and capital-market valuations.

Methodology notes

• Financial Industry-Specific TerminologyNet Interest Margin (NIM) Analysis

  Deposit Beta Analysis

  Refers to the proportion of a policy rate increase that banks pass through to depositors. In this round, MUFG and others maintained a deposit beta of 40% on standard deposits (a 25-bps rise in the policy rate translates to a 10-bps increase in deposit rates), meaning banks retained some margin expansion. This metric is critical for gauging the actual earnings impact of rate hikes.

• Valuation MethodologyPB valuation

  P/B Implied Rate Estimation

  By analyzing a bank’s current price-to-book ratio, its mid-term ROE target, and cost of equity, one can infer the policy rate level already embedded in the stock price. The report uses this method to determine that the current P/B corresponds to a policy rate of roughly 0.75%–1.0%, below both the BOJ’s current setting and expectations for further hikes, indicating revaluation potential.

• Event Arbitrage and Behavioral FinanceExpectation Gap/Expectations Management

  Market Positioning and Short-Covering Analysis

  The report notes light market positioning amid Middle East uncertainties and suggests that once investors recognize the underpricing of bank stocks relative to rising policy rates, a short-covering and revaluation rally akin to that following the December 2025 hike could be triggered. This falls within the typical expectation-gap trading framework.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• MUFG (8306.T)

  A primary beneficiary; has already issued guidance assuming a 1.0% policy rate, with a 25-bps hike adding JPY 18 billion in annual profit

  Strengths

  Largest scale; policy rate sensitivity is well-embedded; deposit beta is well-managed

  Comparison

  Has the most aggressive policy rate assumption (1.0%), but its upside elasticity is relatively limited

• SMFG (8316.T)

  Guides on a 0.75% policy rate, leaving room for upward revision; a 25-bps hike would boost first-year profit by JPY 110 billion

• Mizuho FG (8411.T)

  Guides on a 0.75% policy rate; a 25-bps hike would add JPY 120 billion in annual profit

• Yokohama FG (7186.T)

  Has been the first to disclose FY3/28 rate-hike impacts, leading in transparency

  Strengths

  Proactive disclosure; a 25-bps hike would boost profit by JPY 14 billion, accounting for 7.6% of net income

  Weaknesses

  Smaller scale

  Comparison

  Among the most sensitive to rate changes

• SBI Shinsei Bank (8303.T)

  Manages deposit beta tightly; Hyper Deposit was raised by only 5 bps

  Strengths

  Precision in managing deposit rates to protect margins

  Comparison

  Adopts a more conservative deposit pricing strategy

• Aozora Bank (8304.T)

  Raised rates on small deposits (<JPY 1 million) by 25 bps, a relatively aggressive move

  Weaknesses

  Higher deposit beta means greater margin pressure

  Comparison

  Adopts a more aggressive deposit pricing strategy

Key data

• BOJ Policy Rate0.75% → 1.0%Raised by 25 bps at the MPM on June 15–16
• MUFG Standard Deposit Rate0.30% → 0.40%Increased by 10 bps, effective August 3
• MUFG Short-Term Prime Rate2.125% → 2.375%Raised by 25 bps
• MUFG FY26 Net Profit GuidelineJPY 270 billionAssumes a policy rate of 1.0%; a 25-bps hike would add JPY 18 billion in annual profit
• SMFG FY26 Net Profit GuidelineJPY 170 billionAssumes a policy rate of 0.75%; a 25-bps hike would boost first-year profit by JPY 110 billion
• Mizuho FG FY26 Net Profit GuidelineJPY 130 billionAssumes a policy rate of 0.75%; a 25-bps hike would add JPY 120 billion in annual profit
• Yokohama FG FY3/28 Rate-Hike ImpactJPY 14 billion pre-tax/approximately JPY 10 billion after taxROE would rise by about 0.7 percentage points
• SBI Shinsei Bank Hyper Deposit Rate0.50% → 0.55%Increased by only 5 bps to manage deposit beta

Impact & implications

The report views the continuation of the BOJ’s rate-hiking cycle as a material positive for Japanese bank stocks. From an earnings perspective, higher rates directly widen banks’ net interest margins, particularly during phases when loan pricing adjusts more quickly than deposit costs. From a market standpoint, current valuations have yet to fully reflect the normalization trajectory, leaving room for re-pricing. Drawing on the experience following the December 2025 hike, the report highlights that, once geopolitical uncertainties subside, bank stocks could stage a significant revaluation rally.

Risks

• The BOJ’s pace of rate hikes may adjust based on economic growth or inflation data
• Middle East geopolitical uncertainty could continue to weigh on market sentiment
• Intensified deposit competition might drive up actual deposit betas, eroding banks’ margins
• If loan demand weakens, the transmission of rate hikes to lending rates may fall short of expectations

What to watch

• Whether banks revise FY3/27 earnings guidance to reflect higher policy rates
• More banks disclosing quantitative estimates of FY3/28 rate-hike impacts
• Trends in deposit betas going forward
• Developments in the Middle East and shifts in market positioning
• The BOJ’s next policy meeting (expected in July) and its rate-hike signals