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Prices are from Yahoo! Finance and may be delayed. Always check the latest price before trading.
Transtech Optelecom Science Holdings Limited closed at HK$10.10 on Oct 21, 2026, +10.3% over 1 month, +2,393.8% over 1 year.
If you had invested HK$10,000 1 month ago, it would be worth HK$11,026 today (+10.3%).Price change only; dividends and fees are not included.
Over the same period the Hang Seng Index moved −4.7%, while this stock moved +10.3%.
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 21 (Wed) | HK$10.10 | +0.10 | +1.00% |
| Oct 20 (Tue) | HK$10.00 | +0.51 | +5.37% |
| Oct 16 (Fri) | HK$9.49 | +1.05 | +12.44% |
| Oct 15 (Thu) | HK$8.44 | −0.36 | −4.09% |
| Oct 14 (Wed) | HK$8.80 | +0.41 | +4.82% |
| Oct 13 (Tue) | HK$8.40 | −0.10 | −1.18% |
| Oct 12 (Mon) | HK$8.50 | +0.03 | +0.41% |
| Oct 9 (Fri) | HK$8.46 | −0.23 | −2.59% |
| Oct 8 (Thu) | HK$8.69 | −0.14 | −1.53% |
| Oct 7 (Wed) | HK$8.82 | −0.07 | −0.79% |
If you had invested HK$10,000 3 months ago, it would be worth HK$14,367 today (+43.7%).Price change only; dividends and fees are not included.
Over the same period the Hang Seng Index moved −5.0%, while this stock moved +43.7%.
| Date | Close | Change | % Change |
|---|---|---|---|
| Oct 21 (Wed) | HK$10.10 | +0.10 | +1.00% |
| Oct 20 (Tue) | HK$10.00 | +0.51 | +5.37% |
| Oct 16 (Fri) | HK$9.49 | +1.05 | +12.44% |
| Oct 15 (Thu) | HK$8.44 | −0.36 | −4.09% |
| Oct 14 (Wed) | HK$8.80 | +0.41 | +4.82% |
| Oct 13 (Tue) | HK$8.40 | −0.10 | −1.18% |
| Oct 12 (Mon) | HK$8.50 | +0.03 | +0.41% |
| Oct 9 (Fri) | HK$8.46 | −0.23 | −2.59% |
| Oct 8 (Thu) | HK$8.69 | −0.14 | −1.53% |
| Oct 7 (Wed) | HK$8.82 | −0.07 | −0.79% |
If you had invested HK$10,000 6 months ago, it would be worth HK$20,911 today (+109.1%).Price change only; dividends and fees are not included.
Over the same period the Hang Seng Index moved −9.9%, while this stock moved +109.1%.
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | HK$10.10 | +11.7% |
| Sep 2026 | HK$9.04 | −15.4% |
| Aug 2026 | HK$10.69 | +64.5% |
| Jul 2026 | HK$6.50 | −40.1% |
| Jun 2026 | HK$10.85 | +77.6% |
| May 2026 | HK$6.11 | +12.9% |
| Apr 2026 | HK$5.41 | +155.2% |
If you had invested HK$10,000 1 year ago, it would be worth HK$249,383 today (+2,393.8%).Price change only; dividends and fees are not included.
Over the same period the Hang Seng Index moved −7.4%, while this stock moved +2,393.8%.
| Month | Month-End Close | Monthly % |
|---|---|---|
| Oct 2026 | HK$10.10 | +11.7% |
| Sep 2026 | HK$9.04 | −15.4% |
| Aug 2026 | HK$10.69 | +64.5% |
| Jul 2026 | HK$6.50 | −40.1% |
| Jun 2026 | HK$10.85 | +77.6% |
| May 2026 | HK$6.11 | +12.9% |
| Apr 2026 | HK$5.41 | +155.2% |
| Mar 2026 | HK$2.12 | +17.8% |
| Feb 2026 | HK$1.80 | +20.8% |
| Jan 2026 | HK$1.49 | +29.6% |
| Dec 2025 | HK$1.15 | +173.8% |
| Nov 2025 | HK$0.42 | +0.0% |
| Oct 2025 | HK$0.42 | ― |
If you had invested HK$10,000 3 years ago, it would be worth HK$255,696 today (+2,457.0%).Price change only; dividends and fees are not included.
Over the same period the Hang Seng Index moved +37.2%, while this stock moved +2,457.0%.
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | HK$10.10 | +778.3% |
| 2025 | HK$1.15 | ― |
If you had invested HK$10,000 5 years ago, it would be worth HK$69,655 today (+596.6%).Price change only; dividends and fees are not included.
Over the same period the Hang Seng Index moved −4.7%, while this stock moved +596.6%.
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | HK$10.10 | +778.3% |
| 2025 | HK$1.15 | ― |
If you had invested HK$10,000 in Jul 2017, it would be worth HK$60,119 today (+501.2%).Price change only; dividends and fees are not included.
Over the same period the Hang Seng Index moved −15.4%, while this stock moved +501.2%.
| Year | Year-End Close | Yearly % |
|---|---|---|
| 2026 (YTD) | HK$10.10 | +642.6% |
| 2025 | HK$1.36 | +300.0% |
| 2024 | HK$0.34 | −5.6% |
| 2023 | HK$0.36 | −35.7% |
| 2022 | HK$0.56 | −61.1% |
| 2021 | HK$1.44 | −7.1% |
| 2020 | HK$1.55 | +66.7% |
| 2019 | HK$0.93 | −36.7% |
| 2018 | HK$1.47 | −50.2% |
| 2017 | HK$2.95 | ― |
Daily, weekly and monthly closes (Yahoo! Finance, split-adjusted, dividends excluded). "All" covers the range Yahoo provides (from Jul 2017). Please check the latest prices before trading.
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