SMFG vs WF vs MFG vs KB

For growth investors, KB Financial Group Inc.

(KB) is the stronger pick with 34. 2% revenue growth year-over-year, versus 9. 4% for Woori Financial Group Inc. (WF). Woori Financial Group Inc. (WF) offers the better valuation at 7. 6x trailing P/E (0. 0x forward), making it the more compelling value choice. Analysts rate Woori Financial Group Inc. (WF) a "Buy" — based on 2 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Woori Financial Group Inc.

(WF) is the cheapest at 7. 6x versus Mizuho Financial Group, Inc. at 19. 3x. On forward P/E, Woori Financial Group Inc. is actually cheaper at 0. 0x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Woori Financial Group Inc. wins at 0. 00x versus Sumitomo Mitsui Financial Group, Inc. 's 0. 01x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Sumitomo Mitsui Financial Group, Inc.

(SMFG) delivered a total return of +218. 8%, compared to +130. 8% for KB Financial Group Inc. (KB). Over 10 years, the gap is even starker: KB returned +355. 3% versus WF's +222. 9%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Woori Financial Group Inc.

(WF) is the lower-risk stock at 0. 97β versus KB Financial Group Inc. 's 1. 22β — meaning KB is approximately 26% more volatile than WF relative to the S&P 500. On balance sheet safety, Woori Financial Group Inc. (WF) carries a lower debt/equity ratio of 3% versus 6% for Mizuho Financial Group, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), KB Financial Group Inc.

(KB) is pulling ahead at 34. 2% versus 9. 4% for Woori Financial Group Inc. (WF). On earnings-per-share growth, the picture is similar: Mizuho Financial Group, Inc. grew EPS 30. 7% year-over-year, compared to 9. 8% for Woori Financial Group Inc.. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Sumitomo Mitsui Financial Group, Inc.

(SMFG) is the more profitable company, earning 12. 2% net margin versus 10. 3% for Mizuho Financial Group, Inc. — meaning it keeps 12. 2% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: SMFG leads at 17. 6% versus 13. 8% for MFG. At the gross margin level — before operating expenses — KB leads at 49. 1%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Woori Financial Group Inc. (WF) is the more undervalued stock at a PEG of 0. 00x versus Sumitomo Mitsui Financial Group, Inc. 's 0. 01x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Woori Financial Group Inc. (WF) trades at 0. 0x forward P/E versus 0. 1x for Mizuho Financial Group, Inc. — 0. 1x cheaper on a one-year earnings basis.

In this comparison, WF (3.

8% yield), SMFG (3. 1% yield), MFG (1. 8% yield) pay a dividend. KB does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Woori Financial Group Inc.

(WF) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 97), 3. 8% yield, +222. 9% 10Y return). Both have compounded well over 10 years (WF: +222. 9%, KB: +355. 3%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Financial Services sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: SMFG is a mid-cap deep-value stock; WF is a mid-cap deep-value stock; MFG is a mid-cap quality compounder stock; KB is a mid-cap high-growth stock. SMFG, WF, MFG pay a dividend while KB does not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.