Prices as of 2026/10/30 close
Company comparison · Superabsorbent Polymers
Nippon Shokubai is the bigger company, with revenue of ¥399.9B — 2.7x Sumitomo Seika's ¥148.4B.
Sumitomo Seika earns more on each yen of sales, with an operating margin of 9.7% — 5.4 points above Nippon Shokubai (4.4%).
Revenue growth in the latest results: Sumitomo Seika +0.5%, Nippon Shokubai −2.3%.
Nippon Shokubai pays more on average — ¥8.59M against ¥6.85M at Sumitomo Seika.
Over the past year the shares moved Sumitomo Seika +55.1%, Nippon Shokubai +44.9%.
Head-to-head wins15 metrics
One win per metric for the company with the best value. Metrics with no better or worse (P/E, average age, employees) are excluded.
ScaleInvestors
Nippon Shokubai aheadNippon Shokubai 3 : Sumitomo Seika 0
Revenue: Nippon Shokubai ¥399.9B / Sumitomo Seika ¥148.4B
ProfitabilityInvestors
Sumitomo Seika aheadNippon Shokubai 1 : Sumitomo Seika 3
Operating margin: Nippon Shokubai 4.4% / Sumitomo Seika 9.7%
GrowthInvestors
Sumitomo Seika aheadNippon Shokubai 0 : Sumitomo Seika 2
Revenue growth (YoY): Nippon Shokubai −2.3% / Sumitomo Seika +0.5%
Stock & balance sheetInvestors
Sumitomo Seika aheadNippon Shokubai 1 : Sumitomo Seika 2
Share price, 1 year: Nippon Shokubai +44.9% / Sumitomo Seika +55.1%
Pay & workforceJob seekers
Nippon Shokubai aheadNippon Shokubai 3 : Sumitomo Seika 0
Average salary: Nippon Shokubai ¥8.59M / Sumitomo Seika ¥6.85M
| Metric | Nippon Shokubai | Sumitomo Seika | Gap |
|---|---|---|---|
| Revenue | ◎¥399.9B | ¥148.4B | 2.7x |
| Operating profit | ◎¥17.5B | ¥14.5B | 1.2x |
| Net income | ◎¥16.8B | ¥7.7B | 2.2x |
| Metric | Nippon Shokubai | Sumitomo Seika | Gap |
|---|---|---|---|
| Operating margin | 4.4% | ◎9.7% | 5.4pt |
| Net margin | 4.2% | ◎5.2% | 1.0pt |
| ROE | 4.3% | ◎7.8% | 3.5pt |
| Revenue per employee | ◎¥155M | ¥143M | 1.1x |
| Metric | Nippon Shokubai | Sumitomo Seika | Gap |
|---|---|---|---|
| Revenue growth (YoY) | −2.3% | ◎+0.5% | 2.8pt |
| Operating profit growth (YoY) | −8.0% | ◎+35.0% | 43.0pt |
| Metric | Nippon Shokubai | Sumitomo Seika | Gap |
|---|---|---|---|
| Share price, 1 year | +44.9% | ◎+55.1% | 10.2pt |
| Share price, 3 months | +17.8% | ◎+19.0% | 1.3pt |
| P/E (trailing)lower = cheaper | 22.9x | 12.4x | |
| Equity ratio | ◎70.1% | 67.8% | 2.2pt |
| Share price (close) | ¥2,563.5 | ¥1,458 |
◎ marks the best value for each metric. Revenue and profit are from the latest full-year earnings release; share prices are closing-price references; P/E = latest close ÷ trailing EPS. For banks and some other financials, revenue means ordinary income.
| Metric | Nippon Shokubai | Sumitomo Seika | Gap |
|---|---|---|---|
| Average salary | ◎¥8.59M | ¥6.85M | ¥1.74M |
| Starting salary (monthly) | ◎¥294,800 | ¥255,000 | ¥39,800 |
| Average tenure | ◎16.6 yrs | 15.6 yrs | 1.0 |
| Average age | 39.4 | 38.5 | 0.9 |
| Employees | 2,573 | 1,038 | 2.5x |
Average salary is for the reporting (parent) company and is affected by average age and job mix. Holding companies with few employees are left out of the salary comparison.
Close (Oct 30, 2026)
¥2,563.5+44.9% (1Y)
Nippon Shokubai +44.9% over 1Y. Compared: Sumitomo Seika +55.1%.
Reference chart of daily closing prices, not real-time quotes (split-adjusted; weekly closes before the last year). Each line shows the % change from the start of the period. Updated Oct 30, 2026.
Nippon Shokubai2 segments
Sumitomo Seika3 segments
AAverage annual salary from the securities filings: Nippon Shokubai ¥8.59M, Sumitomo Seika ¥6.85M. Nippon Shokubai pays the most. Averages also depend on staff age and job mix, so check the average age too (Nippon Shokubai 39.4, Sumitomo Seika 38.5).
ARevenue in the latest results: Nippon Shokubai ¥399.9B, Sumitomo Seika ¥148.4B. Nippon Shokubai is the bigger company, with revenue of ¥399.9B — 2.7x Sumitomo Seika's ¥148.4B.
AOperating margins: Sumitomo Seika 9.7%, Nippon Shokubai 4.4%. Sumitomo Seika turns the highest share of sales into operating profit.
AShare price change over the past year (closing prices, for reference): Sumitomo Seika +55.1%, Nippon Shokubai +44.9%. Sumitomo Seika has risen the most.
Comparing 2 companies (up to 4)
Sources: earnings releases (kessan tanshin), annual securities reports and other public information. Share prices are closing-price references, not real-time. Our data may contain errors; investment decisions are your own responsibility.
