MFG vs MUFG: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of September 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: MFG is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. MFG and MUFG share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined MFG and MUFG exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Mizuho Financial Group is a Tokyo-based financial holding company and one of Japan's three megabanks alongside Mitsubishi UFJ (MUFG) and Sumitomo Mitsui (SMFG). It runs through several operating companies: Retail and Business Banking, Corporate and Investment Banking, Global Corporate and Investment Banking, Global Markets, and Asset Management, serving roughly 24 million retail customers and around 100,000 corporate clients with total assets near 290 trillion yen. Its business mix skews more corporate and wholesale than retail-heavy SMFG, and it has been expanding overseas, including a US build-out anchored by its Greenhill advisory acquisition.

Full MFG guide

Mitsubishi UFJ Financial Group is Japan's largest financial institution by assets and market capitalization, operating across retail and corporate banking, trust banking, securities, and global markets. Japanese operations account for roughly half of profit, banking franchises in Thailand and Indonesia contribute around 15%, and equity-method earnings from its roughly 24% stake in Morgan Stanley make up much of the remainder, which makes MUFG the most internationally weighted of the three Japanese megabanks. The US-listed MUFG security is a sponsored ADR representing the underlying Tokyo-listed shares (ticker 8306).

Full MUFG guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• MFG drivers: Japanese interest-rate normalization; Corporate banking and fee income.
• MUFG drivers: Japanese interest-rate normalization; Global and Asian diversification.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Mizuho's fortunes are tightly linked to Japanese monetary policy, so a stall or reversal in rate hikes would cap the margin recovery that underpins the current profit level. For MUFG, mUFG's earnings and ADR price are sensitive to the yen, so currency swings and possible government FX intervention can distort translated overseas profits and its large cross-border bond portfolios.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick MFG if you believe its drivers more; MUFG if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the MFG and MUFG guides.

MFG. Mizuho has been posting record or near-record profits, with consolidated net income around the 1 trillion yen level as rising Japanese rates widen lending margins. Reported figures are converted from yen at roughly 150 yen per dollar, so the dollar values move with the exchange rate. Valuation multiples in the mid-teens sit broadly in line with its Japanese megabank peers after the sector's multi-year rerating.

MUFG. MUFG trades at a valuation typical of a large, mature diversified bank, with a mid-teens P/E and price-to-book around 1.5x reflecting improved returns as Japanese rates normalize. Its latest fiscal year (ended March 2025) produced net income near JPY 1.8 trillion, and first-half FY2025 delivered record profits that prompted an upward revision of targets. All figures are approximate ADR-adjusted USD conversions from yen reporting and move with exchange rates.

Headline figures (approximate, JULY 2026): MFG shows market cap ~$110 billion, revenue (ttm, ordinary income) ~$26 billion, net income (ttm) ~$6.5 billion, total assets ~$1.9 trillion (~290 trillion yen); MUFG shows market capitalization ~$240B (JPY ~41T), total revenue (latest fy, us gaap) ~$45B (JPY ~6.8T), net income (latest fy) ~$12B (JPY ~1.8T), p/e ratio ~14x.

MFG and MUFG are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined MFG and MUFG exposure against your real portfolio. It is not an investment adviser.