3774 Internet Initiative Japan Inc.インターネットイニシアティブTSE Prime / Information & Communication
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Internet Initiative Japan Inc. (3774) at a glance
Prices are from Yahoo! Finance and may be delayed. Always check the latest price before trading.
Internet Initiative Japan Inc. (3774) Stock Price HistoryAt an all-time high
Internet Initiative Japan Inc. closed at ¥3,544 on Oct 30, 2026, +4.3% over 1 month, +30.0% over 1 year.
If you had invested ¥100,000 1 month ago, it would be worth ¥104,327 today (+4.3%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved −3.1%, while this stock moved +4.3%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥3,544 | +43 | +1.23% |
| Oct 29 (Thu) | ¥3,501 | +1 | +0.03% |
| Oct 28 (Wed) | ¥3,500 | +18 | +0.52% |
| Oct 27 (Tue) | ¥3,482 | −28 | −0.80% |
| Oct 26 (Mon) | ¥3,510 | +10 | +0.29% |
| Oct 23 (Fri) | ¥3,500 | −73 | −2.04% |
| Oct 22 (Thu) | ¥3,573 | +81 | +2.32% |
| Oct 21 (Wed) | ¥3,492 | −43 | −1.22% |
| Oct 20 (Tue) | ¥3,535 | −52 | −1.45% |
| Oct 19 (Mon) | ¥3,587 | −49 | −1.35% |
If you had invested ¥100,000 3 months ago, it would be worth ¥99,272 today (−0.7%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +4.5%, while this stock moved −0.7%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥3,544 | +43 | +1.23% |
| Oct 29 (Thu) | ¥3,501 | +1 | +0.03% |
| Oct 28 (Wed) | ¥3,500 | +18 | +0.52% |
| Oct 27 (Tue) | ¥3,482 | −28 | −0.80% |
| Oct 26 (Mon) | ¥3,510 | +10 | +0.29% |
| Oct 23 (Fri) | ¥3,500 | −73 | −2.04% |
| Oct 22 (Thu) | ¥3,573 | +81 | +2.32% |
| Oct 21 (Wed) | ¥3,492 | −43 | −1.22% |
| Oct 20 (Tue) | ¥3,535 | −52 | −1.45% |
| Oct 19 (Mon) | ¥3,587 | −49 | −1.35% |
If you had invested ¥100,000 6 months ago, it would be worth ¥127,827 today (+27.8%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +9.1%, while this stock moved +27.8%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥3,544 | +4.3% |
| Sep 2026 | ¥3,397 | +0.3% |
| Aug 2026 | ¥3,388 | −3.3% |
| Jul 2026 | ¥3,503 | +9.6% |
| Jun 2026 | ¥3,197 | +3.1% |
| May 2026 | ¥3,102 | +11.9% |
| Apr 2026 | ¥2,773 | +13.3% |
If you had invested ¥100,000 1 year ago, it would be worth ¥130,007 today (+30.0%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +26.0%, while this stock moved +30.0%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥3,544 | +4.3% |
| Sep 2026 | ¥3,397 | +0.3% |
| Aug 2026 | ¥3,388 | −3.3% |
| Jul 2026 | ¥3,503 | +9.6% |
| Jun 2026 | ¥3,197 | +3.1% |
| May 2026 | ¥3,102 | +11.9% |
| Apr 2026 | ¥2,773 | +13.3% |
| Mar 2026 | ¥2,448 | +7.4% |
| Feb 2026 | ¥2,278 | −8.6% |
| Jan 2026 | ¥2,493 | −9.9% |
| Dec 2025 | ¥2,766 | −3.7% |
| Nov 2025 | ¥2,873 | +3.3% |
| Oct 2025 | ¥2,782 | ― |
If you had invested ¥100,000 3 years ago, it would be worth ¥134,702 today (+34.7%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +98.5%, while this stock moved +34.7%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥3,544 | +28.2% |
| 2025 | ¥2,766 | ― |
If you had invested ¥100,000 5 years ago, it would be worth ¥157,862 today (+57.9%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +118.4%, while this stock moved +57.9%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥3,544 | +28.2% |
| 2025 | ¥2,766 | ― |
If you had invested ¥100,000 in Jan 2006, it would be worth ¥550,524 today (+450.5%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +279.0%, while this stock moved +450.5%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥3,544 | +28.2% |
| 2025 | ¥2,766 | −7.4% |
| 2024 | ¥2,986 | +3.5% |
| 2023 | ¥2,884 | +17.7% |
| 2022 | ¥2,450 | +3.2% |
| 2021 | ¥2,375 | +133.8% |
| 2020 | ¥1,016 | +38.0% |
| 2019 | ¥736 | +18.4% |
| 2018 | ¥622 | +20.8% |
| 2017 | ¥515 | +16.7% |
| 2016 | ¥441 | −26.9% |
| 2015 | ¥603 | −2.3% |
| 2014 | ¥617 | −12.5% |
| 2013 | ¥705 | +42.7% |
| 2012 | ¥494 | +43.2% |
| 2011 | ¥345 | +19.6% |
| 2010 | ¥288 | +38.3% |
| 2009 | ¥209 | +61.0% |
| 2008 | ¥130 | −76.8% |
| 2007 | ¥559 | +9.3% |
| 2006 | ¥511 | ― |
Daily, weekly and monthly closes (Yahoo! Finance, split-adjusted, dividends excluded). "All" covers the range Yahoo provides (from Jan 2006). Please check the latest prices before trading.
Internet Initiative Japan Inc. (3774) financial indicators
PER, ROE and dividend yield are based on company forecasts, calculated from earnings reports and the closing price after each trading day.
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