Prices as of 2026/10/30 close
Company comparison · Glass & Electronic Ceramics



AGC is the largest by revenue at ¥2.1T, followed by NGK Insulators (¥619.5B), NEG (¥311.4B) and MARUWA (¥74.5B).
MARUWA has the highest operating margin at 33.5%, 27.3 points above the lowest, AGC (6.2%).
Revenue growth in the latest results: NGK Insulators +7.0%, NEG +4.1%, MARUWA +3.7%, AGC −0.4%. For next year, MARUWA guides for the fastest operating profit growth (+18.9%).
AGC pays the most on average (¥8.88M), ¥1.84M more than NEG (¥7.04M).
Over the past year the shares moved NGK Insulators +80.7%, MARUWA +27.9%, AGC +13.2%, NEG −1.4%.
Head-to-head wins18 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
AGC aheadAGC 3 : NGK Insulators 0 : NEG 0 : MARUWA 0
Revenue: AGC ¥2.1T / NGK Insulators ¥619.5B / NEG ¥311.4B / MARUWA ¥74.5B
ProfitabilityInvestors
MARUWA aheadAGC 1 : NGK Insulators 0 : NEG 1 : MARUWA 2
Operating margin: AGC 6.2% / NGK Insulators 13.1% / NEG 11.0% / MARUWA 33.5%
GrowthInvestors
MARUWA aheadAGC 0 : NGK Insulators 1 : NEG 1 : MARUWA 3
Revenue growth (YoY): AGC −0.4% / NGK Insulators +7.0% / NEG +4.1% / MARUWA +3.7%
Stock & balance sheetInvestors
EvenAGC 0 : NGK Insulators 1 : NEG 1 : MARUWA 1
Share price, 1 year: AGC +13.2% / NGK Insulators +80.7% / NEG −1.4% / MARUWA +27.9%
Pay & workforceJob seekers
EvenAGC 1 : NGK Insulators 0 : NEG 1 : MARUWA 1
Average salary: AGC ¥8.88M / NGK Insulators ¥8.45M / NEG ¥7.04M / MARUWA ¥8.88M
| Metric | AGC | NGK Insulators | NEG | MARUWA |
|---|---|---|---|---|
| Revenue | ◎¥2.1T | ¥619.5B | ¥311.4B | ¥74.5B |
| Operating profit | ◎¥127.5B | ¥81.2B | ¥34.1B | ¥25.0B |
| Net income | ◎¥69.2B | ¥54.9B | ¥29.6B | ¥18.2B |
| Metric | AGC | NGK Insulators | NEG | MARUWA |
|---|---|---|---|---|
| Operating margin | 6.2% | 13.1% | 11.0% | ◎33.5% |
| Net margin | 3.4% | 8.9% | 9.5% | ◎24.4% |
| ROE | 4.3% | — | ◎6.1% | — |
| Revenue per employee | ◎¥257M | ¥127M | ¥178M | ¥114M |
| Metric | AGC | NGK Insulators | NEG | MARUWA |
|---|---|---|---|---|
| Revenue growth (YoY) | −0.4% | ◎+7.0% | +4.1% | +3.7% |
| Operating profit growth (YoY) | +1.3% | +22.4% | ◎+457.6% | −7.2% |
| Revenue CAGRlast 4 years | +4.9% | +8.2% | +1.6% | ◎+12.4% |
| Guidance: revenue growthnext FY plan | +6.9% | +1.7% | +2.8% | ◎+12.9% |
| Guidance: op. profit growthnext FY plan | +17.7% | −7.7% | −3.3% | ◎+18.9% |
| Metric | AGC | NGK Insulators | NEG | MARUWA |
|---|---|---|---|---|
| Share price, 1 year | +13.2% | ◎+80.7% | −1.4% | +27.9% |
| Share price, 3 months | −9.3% | −12.0% | −2.9% | ◎−2.6% |
| P/E (trailing)lower = cheaper | 16.6x | 24.8x | 13.0x | — |
| Equity ratio | 58.7% | 63.6% | ◎70.7% | — |
| Share price (close) | ¥5,420 | ¥4,613 | ¥4,979 | ¥51,470 |
◎ 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 | AGC | NGK Insulators | NEG | MARUWA |
|---|---|---|---|---|
| Average salary | ◎¥8.88M | ¥8.45M | ¥7.04M | ¥8.88M |
| Starting salary (monthly) | ¥293,012 | ¥285,000 | ¥273,000 | ◎¥303,200 |
| Average tenure | 16.9 yrs | 15.2 yrs | ◎21.2 yrs | 11.4 yrs |
| Average age | 43.2 | 40.5 | 43.9 | 43.8 |
| Employees | 8,014 | 4,876 | 1,746 | 651 |
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)
¥5,420+13.2% (1Y)
AGC +13.2% over 1Y. Compared: NGK Insulators +80.7%, NEG -1.4%, MARUWA +27.9%.
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.
AGC6 segments
NGK Insulators3 segments
MARUWA2 segments
AAverage annual salary from the securities filings: AGC ¥8.88M, MARUWA ¥8.88M, NGK Insulators ¥8.45M, NEG ¥7.04M. AGC pays the most. Averages also depend on staff age and job mix, so check the average age too (AGC 43.2, NGK Insulators 40.5, NEG 43.9, MARUWA 43.8).
ARevenue in the latest results: AGC ¥2.1T, NGK Insulators ¥619.5B, NEG ¥311.4B, MARUWA ¥74.5B. AGC is the largest by revenue at ¥2.1T, followed by NGK Insulators (¥619.5B), NEG (¥311.4B) and MARUWA (¥74.5B).
AOperating margins: MARUWA 33.5%, NGK Insulators 13.1%, NEG 11.0%, AGC 6.2%. MARUWA turns the highest share of sales into operating profit.
AShare price change over the past year (closing prices, for reference): NGK Insulators +80.7%, MARUWA +27.9%, AGC +13.2%, NEG −1.4%. NGK Insulators has risen the most.



Comparing 4 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.