Sumitomo Bakelite (TSE:4203) Reported Strong First Quarter Earnings, Is The Stock Too Expensive?

Why Sumitomo Bakelite Stock Is Back On Investor Radars

Sumitomo Bakelite (TSE:4203) has drawn fresh attention after reporting first quarter earnings on 3 August 2026. Sales reached ¥95,211 million and net income was ¥10,933 million, with basic EPS at ¥124.61.

See our latest analysis for Sumitomo Bakelite.

The earnings release on 3 August 2026 has coincided with clear momentum in Sumitomo Bakelite's stock, with a 90 day share price return of 13.72% and a year to date share price return of 47.63%. The 1 year total shareholder return of 65.39% and 5 year total shareholder return of 253.30% point to strong compounding over time.

If the recent move in Sumitomo Bakelite has you thinking about where else strong narratives might be forming, it could be worth scanning for other opportunities through 10 top founder-led companies

For Sumitomo Bakelite, the jump in quarterly sales and earnings lines up closely with the share price surge. The key tension now is whether the valuation already reflects that stronger business performance or still leans on sentiment.

Price To Earnings Of 21.2x For Sumitomo Bakelite, Is It Justified?

On the latest figures, Sumitomo Bakelite trades on a P/E of 21.2x, which sits above both its peer average of 17.3x and the broader JP Chemicals industry at 12.7x.

The P/E multiple compares the current share price of ¥7,609 with the company’s earnings per share. For a business like Sumitomo Bakelite, which operates across semiconductor materials, high performance plastics and quality of life products, investors often watch the P/E to gauge how much of the recent earnings growth is already reflected in the price.

Here, the SWS fair P/E estimate is 17.5x, which is lower than the current 21.2x. That sits alongside a 59.7% earnings growth figure over the past year and a 5 year earnings growth rate of 8% per year. The combination suggests the market is paying a premium multiple relative to both the industry and this fair ratio level. Some investors may view that fair ratio as a point the market could move toward over time.

This premium is also evident when set against the JP Chemicals industry average P/E of 12.7x. Sumitomo Bakelite’s 21.2x sits well above that sector level, while still exceeding the peer group average of 17.3x. This reinforces the idea that the stock is priced more expensively than many domestic chemicals peers right now.

Explore the SWS fair ratio for Sumitomo Bakelite

Result: Price-to-Earnings of 21.2x (OVERVALUED).

However, the Sumitomo Bakelite story can sour if earnings growth slows, or if demand weakens across semiconductor materials and high performance plastics at this valuation.

Find out about the key risks to this Sumitomo Bakelite narrative.

Another View On Sumitomo Bakelite’s Valuation

The SWS DCF model takes a different approach and values Sumitomo Bakelite’s future cash flows at ¥5,332.36 per share. With the stock at ¥7,609, that points to an overvalued picture using this method. The gap raises a simple question: which view do you trust more?

Look into how the SWS DCF model arrives at its fair value.

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Sumitomo Bakelite for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 19 high quality undervalued stocks. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Next Steps

Given the mix of stronger recent results and premium valuation for Sumitomo Bakelite, the picture is far from one sided. Take a moment to look through the data in detail and weigh both sides of the story, then see the 2 key rewards and 1 important warning sign

Looking For More Investment Ideas Beyond Sumitomo Bakelite?

If Sumitomo Bakelite has sharpened your focus, do not stop here. Use fresh ideas from focused stock lists to keep building a watchlist that truly works for you.

• Target potential mispricings by scanning companies that trade below fundamentals through the 19 high quality undervalued stocks.
• Prioritise resilience and aim to sleep better at night by reviewing 55 resilient stocks with low risk scores that score well on risk metrics.
• Look for possible future standouts before the crowd by using the screener containing 64 high quality undiscovered gems to surface quality stocks that currently receive less attention.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com