4840 TriIs IncorporatedトライアイズTSE Standard / Services
6 posts
TriIs Incorporated stock plunged on Oct 30: what happened
It closed at ¥941 on Oct 30 (−¥139, −12.87%), ranking #13 among the top losers of all stocks on the Tokyo Stock Exchange.
Disclosures around that day
- 10/30 15:30子会社株式の一部譲渡に伴う個別決算における特別利益計上見込みに関するお知らせ
- 10/30 15:30アイコム株式会社との戦略的資本業務提携に基づく第三者割当による自己株式処分に関するお知らせ
- 10/30 15:30株式会社トライアイズとアイコム株式会社との株式会社LIMNOの合弁会社化を伴う戦略的資本業務提携に関するお知らせ
Changes are calculated from the closing prices this site collects daily; limit-up/down is an estimate based on the daily price limit. Please make your own investment decisions.
TriIs Incorporated (4840) at a glance
Prices are from Yahoo! Finance and may be delayed. Always check the latest price before trading.
TriIs Incorporated (4840) Stock Price History
TriIs Incorporated closed at ¥941 on Oct 30, 2026, +30.5% over 1 month, +92.8% over 1 year.
If you had invested ¥100,000 1 month ago, it would be worth ¥130,513 today (+30.5%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved −5.2%, while this stock moved +30.5%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥941 | −139 | −12.87% |
| Oct 29 (Thu) | ¥1,080 | +89 | +8.98% |
| Oct 28 (Wed) | ¥991 | −74 | −6.95% |
| Oct 27 (Tue) | ¥1,065 | +64 | +6.39% |
| Oct 26 (Mon) | ¥1,001 | +17 | +1.73% |
| Oct 23 (Fri) | ¥984 | −3 | −0.30% |
| Oct 22 (Thu) | ¥987 | +4 | +0.41% |
| Oct 21 (Wed) | ¥983 | +48 | +5.13% |
| Oct 20 (Tue) | ¥935 | −56 | −5.65% |
| Oct 19 (Mon) | ¥991 | −18 | −1.78% |
If you had invested ¥100,000 3 months ago, it would be worth ¥174,583 today (+74.6%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +2.3%, while this stock moved +74.6%.
Last 10 Trading Days
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 30 (Fri) | ¥941 | −139 | −12.87% |
| Oct 29 (Thu) | ¥1,080 | +89 | +8.98% |
| Oct 28 (Wed) | ¥991 | −74 | −6.95% |
| Oct 27 (Tue) | ¥1,065 | +64 | +6.39% |
| Oct 26 (Mon) | ¥1,001 | +17 | +1.73% |
| Oct 23 (Fri) | ¥984 | −3 | −0.30% |
| Oct 22 (Thu) | ¥987 | +4 | +0.41% |
| Oct 21 (Wed) | ¥983 | +48 | +5.13% |
| Oct 20 (Tue) | ¥935 | −56 | −5.65% |
| Oct 19 (Mon) | ¥991 | −18 | −1.78% |
If you had invested ¥100,000 6 months ago, it would be worth ¥132,910 today (+32.9%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +6.8%, while this stock moved +32.9%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥941 | +30.5% |
| Sep 2026 | ¥721 | −15.0% |
| Aug 2026 | ¥848 | +64.3% |
| Jul 2026 | ¥516 | −16.1% |
| Jun 2026 | ¥615 | −37.1% |
| May 2026 | ¥978 | +38.1% |
| Apr 2026 | ¥708 | +20.4% |
If you had invested ¥100,000 1 year ago, it would be worth ¥192,828 today (+92.8%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +23.3%, while this stock moved +92.8%.
Monthly Closes
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | ¥941 | +30.5% |
| Sep 2026 | ¥721 | −15.0% |
| Aug 2026 | ¥848 | +64.3% |
| Jul 2026 | ¥516 | −16.1% |
| Jun 2026 | ¥615 | −37.1% |
| May 2026 | ¥978 | +38.1% |
| Apr 2026 | ¥708 | +20.4% |
| Mar 2026 | ¥588 | +26.2% |
| Feb 2026 | ¥466 | −4.3% |
| Jan 2026 | ¥487 | −0.4% |
| Dec 2025 | ¥489 | +1.2% |
| Nov 2025 | ¥483 | −0.4% |
| Oct 2025 | ¥485 | ― |
If you had invested ¥100,000 3 years ago, it would be worth ¥229,512 today (+129.5%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +98.1%, while this stock moved +129.5%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥941 | +92.4% |
| 2025 | ¥489 | ― |
If you had invested ¥100,000 5 years ago, it would be worth ¥283,434 today (+183.4%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +113.7%, while this stock moved +183.4%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥941 | +92.4% |
| 2025 | ¥489 | ― |
If you had invested ¥100,000 in Apr 2002, it would be worth ¥18,745 today (−81.3%).Price change only; dividends and fees are not included.
Over the same period the Nikkei 225 moved +495.8%, while this stock moved −81.3%.
Yearly Closes
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | ¥941 | +92.4% |
| 2025 | ¥489 | +71.0% |
| 2024 | ¥286 | −16.6% |
| 2023 | ¥343 | −19.5% |
| 2022 | ¥426 | +37.4% |
| 2021 | ¥310 | −8.6% |
| 2020 | ¥339 | −35.1% |
| 2019 | ¥522 | +94.8% |
| 2018 | ¥268 | −32.0% |
| 2017 | ¥394 | +18.3% |
| 2016 | ¥333 | −13.7% |
| 2015 | ¥386 | +16.6% |
| 2014 | ¥331 | +10.3% |
| 2013 | ¥300 | +70.1% |
| 2012 | ¥176 | +37.8% |
| 2011 | ¥128 | −11.7% |
| 2010 | ¥145 | +17.0% |
| 2009 | ¥124 | −13.7% |
| 2008 | ¥144 | −63.3% |
| 2007 | ¥391 | −55.0% |
| 2006 | ¥869 | −66.1% |
| 2005 | ¥2,567 | −62.9% |
| 2004 | ¥6,910 | +35.5% |
| 2003 | ¥5,100 | +314.6% |
| 2002 | ¥1,230 | ― |
Daily, weekly and monthly closes (Yahoo! Finance, split-adjusted, dividends excluded). "All" covers the range Yahoo provides (from Apr 2002). Please check the latest prices before trading.
TriIs Incorporated (4840) financial indicators
PER, ROE and dividend yield are based on company forecasts, calculated from earnings reports and the closing price after each trading day.
Recent disclosures (TDnet, in Japanese)
- 10/30 15:30 子会社株式の一部譲渡に伴う個別決算における特別利益計上見込みに関するお知らせ
- 10/30 15:30 アイコム株式会社との戦略的資本業務提携に基づく第三者割当による自己株式処分に関するお知らせ
- 10/30 15:30 株式会社トライアイズとアイコム株式会社との株式会社LIMNOの合弁会社化を伴う戦略的資本業務提携に関するお知らせ
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