Prices as of 2026/10/30 close
Company comparison · Detached-Home Builders
Iida Group is the bigger company, with revenue of ¥1.5T — 1.1x Open House's ¥1.3T.
Open House earns more on each yen of sales, with an operating margin of 10.9% — 4.7 points above Iida Group (6.3%).
Revenue growth in the latest results: Iida Group +3.4%, Open House +3.1%. For next year, Open House guides for the fastest operating profit growth (+16.5%).
Open House pays more on average — ¥9.14M against ¥7.55M at Iida Group.
Over the past year the shares moved Open House +4.7%, Iida Group −10.2%.
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
Open House aheadIida Group 1 : Open House 2
Revenue: Iida Group ¥1.5T / Open House ¥1.3T
ProfitabilityInvestors
Open House aheadIida Group 1 : Open House 2
Operating margin: Iida Group 6.3% / Open House 10.9%
GrowthInvestors
Open House aheadIida Group 1 : Open House 4
Revenue growth (YoY): Iida Group +3.4% / Open House +3.1%
Stock & balance sheetInvestors
EvenIida Group 1 : Open House 1
Share price, 1 year: Iida Group −10.2% / Open House +4.7%
Pay & workforceJob seekers
Open House aheadIida Group 0 : Open House 2
Average salary: Iida Group ¥7.55M / Open House ¥9.14M
| Metric | Iida Group | Open House | Gap |
|---|---|---|---|
| Revenue | ◎¥1.5T | ¥1.3T | 1.1x |
| Operating profit | ¥94.4B | ◎¥145.9B | 1.5x |
| Net income | ¥63.3B | ◎¥100.7B | 1.6x |
| Metric | Iida Group | Open House | Gap |
|---|---|---|---|
| Operating margin | 6.3% | ◎10.9% | 4.7pt |
| Net margin | 4.2% | ◎7.5% | 3.3pt |
| ROE | — | 20.1% | |
| Revenue per employee | ◎¥12.7B | ¥4.4B | 2.9x |
| Metric | Iida Group | Open House | Gap |
|---|---|---|---|
| Revenue growth (YoY) | ◎+3.4% | +3.1% | 0.3pt |
| Operating profit growth (YoY) | +17.4% | ◎+22.5% | 5.1pt |
| Revenue CAGRlast 5 years | +0.7% | ◎+13.3% | 12.6pt |
| Guidance: revenue growthnext FY plan | +10.2% | ◎+11.1% | 0.9pt |
| Guidance: op. profit growthnext FY plan | +9.7% | ◎+16.5% | 6.8pt |
| Metric | Iida Group | Open House | Gap |
|---|---|---|---|
| Share price, 1 year | −10.2% | ◎+4.7% | 15.0pt |
| Share price, 3 months | ◎−10.3% | −11.0% | 0.8pt |
| P/E (trailing)lower = cheaper | — | 8.8x | |
| Equity ratio | — | 38.2% | |
| Share price (close) | ¥2,097.5 | ¥7,719 |
◎ 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 | Iida Group | Open House | Gap |
|---|---|---|---|
| Average salary | ¥7.55M | ◎¥9.14M | ¥1.59M |
| Starting salary (monthly) | ¥270,000 | ◎¥360,000 | ¥90,000 |
| Average tenure | 4.5 yrs | 4.5 yrs | 0.0 |
| Average age | 44.6 | 34.7 | 9.9 |
| Employees | 119 | 307 | 2.6x |
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)
¥2,097.5-10.2% (1Y)
Iida Group -10.2% over 1Y. Compared: Open House +4.7%.
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.
Iida Group6 segments
Open House5 segments
AAverage annual salary from the securities filings: Open House ¥9.14M, Iida Group ¥7.55M. Open House pays the most. Averages also depend on staff age and job mix, so check the average age too (Iida Group 44.6, Open House 34.7).
ARevenue in the latest results: Iida Group ¥1.5T, Open House ¥1.3T. Iida Group is the bigger company, with revenue of ¥1.5T — 1.1x Open House's ¥1.3T.
AOperating margins: Open House 10.9%, Iida Group 6.3%. Open House turns the highest share of sales into operating profit.
AShare price change over the past year (closing prices, for reference): Open House +4.7%, Iida Group −10.2%. Open House 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.
