HKEX · 1666 · stock
Tong Ren Tang Technologies Co. Ltd. (1666) stock price history
Every HKEX trading session of Tong Ren Tang Technologies Co. Ltd. from Oct 31, 2000 to Nov 13, 2026: 6,325 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
1666 adjusted close, 2000 to 2026
- HK$11.72
- All time high, 2016
- HK$4.66
- 52 week high, HK$2.81 low
- 6,325
- Daily sessions since 2000
Last updated Nov 13, 2026, the last stored session. Refreshes after each trading day. Full 2000 to 2026 series and minute bars.
1666 key facts
- Tong Ren Tang Technologies Co. Ltd. (1666) closed at HK$2.93 on Nov 13, 2026 on HKEX.
- 1666's all time high close is HK$11.72, set on Oct 7, 2016; its all time low close is HK$0.1750 on Jan 18, 2001.
- 1666's 52 week range is HK$2.81 to HK$4.66.
- 1666 returned -36.9% over the year to Nov 13, 2026 and -34.1% over five years.
- Over ten years 1666 returned -73%, -12.1% a year compounded.
- 1666's deepest drawdown was -79.1% from Jun 26, 2007 to Oct 28, 2008.
- DataCedar holds 6,325 daily sessions of 1666 history from Oct 31, 2000 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
1666 price chart, 2000 to 2026
1666 returns
Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -4.9% |
| 3 months | -11.9% |
| 6 months | -18.8% |
| Year to date | -29.6% |
| 1 year | -36.9% |
| 3 years | -45.3% |
| 5 years | -34.1% |
| 10 years | -72.5% |
| Since Oct 31, 2000 | +756.6% |
| Compound annual growth, 26.0 years | +8.6% |
1666 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- HK$11.72 on Oct 7, 2016
- All time low close
- HK$0.1750 on Jan 18, 2001
- 52 week high
- HK$4.66 on Nov 14, 2025
- 52 week low
- HK$2.81 on Nov 4, 2026
- Deepest drawdown
- -79.1% from Jun 26, 2007 to Oct 28, 2008, recovered Sep 29, 2010
- Best single session
- +17.7% on Dec 31, 2021
- Worst single session
- -17.0% on Jan 18, 2001
- Volatility, 1 year annualised
- 24.3%
- Sessions closing higher, 1 year
- 43%
- Growth of 1 since 2000
- 8.6×
- Best calendar year
- 2009, +130%
- Worst calendar year
- 2008, -55%
1666 price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2000 starts on Oct 31, 2000; 2026 runs to Nov 13, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | HK$4.13 | HK$4.29 | HK$2.81 | HK$2.93 | -29.3% | 245.3M | 209 |
| 2025 | HK$4.70 | HK$5.20 | HK$3.98 | HK$4.14 | -11.8% | 383.3M | 245 |
| 2024 | HK$5.71 | HK$6.03 | HK$4.06 | HK$4.70 | -17.7% | 311.1M | 245 |
| 2023 | HK$4.75 | HK$7.63 | HK$4.65 | HK$5.71 | +18.8% | 296.6M | 241 |
| 2022 | HK$7.05 | HK$7.67 | HK$3.23 | HK$4.81 | -30.6% | 288.4M | 244 |
| 2021 | HK$3.90 | HK$7.22 | HK$3.80 | HK$6.93 | +76.4% | 499.1M | 247 |
| 2020 | HK$6.10 | HK$6.71 | HK$3.59 | HK$3.93 | -34.4% | 708.1M | 245 |
| 2019 | HK$7.94 | HK$8.66 | HK$5.19 | HK$5.98 | -23.7% | 448.3M | 243 |
| 2018 | HK$8.56 | HK$10.87 | HK$7.73 | HK$7.85 | -7.8% | 552.4M | 244 |
| 2017 | HK$10.74 | HK$10.84 | HK$7.32 | HK$8.52 | -20.2% | 391.1M | 246 |
| 2016 | HK$9.29 | HK$11.88 | HK$8.27 | HK$10.68 | +14.7% | 200.3M | 247 |
| 2015 | HK$7.23 | HK$10.76 | HK$6.58 | HK$9.31 | +37.1% | 412.8M | 246 |
| 2014 | HK$8.79 | HK$10.32 | HK$6.54 | HK$6.79 | -23.0% | 414.4M | 245 |
| 2013 | HK$6.03 | HK$10.29 | HK$5.77 | HK$8.81 | +46.0% | 501.5M | 244 |
| 2012 | HK$2.93 | HK$6.23 | HK$2.76 | HK$6.03 | +105.9% | 321.5M | 242 |
| 2011 | HK$2.70 | HK$3.34 | HK$2.21 | HK$2.93 | +10.8% | 359.5M | 245 |
| 2010 | HK$1.53 | HK$3.02 | HK$1.41 | HK$2.65 | +72.9% | 405.9M | 243 |
| 2009 | HK$0.6656 | HK$1.70 | HK$0.6350 | HK$1.53 | +129.9% | 257.6M | 247 |
| 2008 | HK$1.48 | HK$1.55 | HK$0.4733 | HK$0.6656 | -55.1% | 270.5M | 241 |
| 2007 | HK$1.23 | HK$2.41 | HK$1.20 | HK$1.48 | +20.6% | 640.1M | 241 |
| 2006 | HK$1.29 | HK$1.78 | HK$1.16 | HK$1.23 | -4.8% | 354.9M | 231 |
| 2005 | HK$1.59 | HK$1.77 | HK$1.24 | HK$1.29 | -19.1% | 366.4M | 231 |
| 2004 | HK$1.25 | HK$1.72 | HK$1.24 | HK$1.60 | +27.9% | 262.6M | 239 |
| 2003 | HK$0.7344 | HK$1.38 | HK$0.7167 | HK$1.25 | +70.1% | 515M | 252 |
| 2002 | HK$0.3980 | HK$0.8184 | HK$0.3875 | HK$0.7344 | +83.5% | 664.1M | 239 |
| 2001 | HK$0.2545 | HK$0.5475 | HK$0.1710 | HK$0.4001 | +57.2% | 848.6M | 239 |
| 2000 | HK$0.3977 | HK$0.4136 | HK$0.2366 | HK$0.2545 | n/a | 617.6M | 44 |
1666 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| November 2026 | HK$2.93 | -1.8% |
| October 2026 | HK$2.98 | -4.3% |
| September 2026 | HK$3.12 | +5.6% |
| August 2026 | HK$2.95 | -16.1% |
| July 2026 | HK$3.52 | +10.0% |
| June 2026 | HK$3.20 | -3.5% |
| May 2026 | HK$3.32 | -8.3% |
| April 2026 | HK$3.62 | -2.8% |
| March 2026 | HK$3.72 | -9.8% |
| February 2026 | HK$4.13 | +1.9% |
| January 2026 | HK$4.05 | -2.3% |
| December 2025 | HK$4.14 | -7.2% |
About the 1666 data
Daily bars. 6,325 sessions from Oct 31, 2000 to Nov 13, 2026, one row per HKEX trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 17, 2026 forward, most recent session Nov 13, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are HKEX trading days; minute timestamps are UTC. Prices are in HKD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Oct 31, 2000, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/hkex%3A1666/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on HKEX
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Common questions
1666 share price history
