SET · QLT · stock
Qualitech Public Company Limited (QLT) stock price history
Every SET trading session of Qualitech Public Company Limited from Jun 9, 2009 to Sep 28, 2026: 4,222 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.
QLT adjusted close, 2009 to 2026
- THB 10.46
- All time high, 2015
- THB 2.18
- 52 week high, THB 1.22 low
- 4,222
- Daily sessions since 2009
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2009 to 2026 series and minute bars.
QLT key facts
- Qualitech Public Company Limited (QLT) closed at THB 1.78 on Sep 28, 2026 on SET.
- QLT's all time high close is THB 10.46, set on Sep 9, 2015; its all time low close is THB 1.37 on Mar 20, 2026.
- QLT's 52 week range is THB 1.22 to THB 2.18.
- QLT returned -10.1% over the year to Sep 28, 2026 and -54.2% over five years.
- Over ten years QLT returned -72%, -11.8% a year compounded.
- QLT's deepest drawdown was -86.9% from Sep 9, 2015 to Mar 20, 2026.
- DataCedar holds 4,222 daily sessions of QLT history from Jun 9, 2009 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
QLT price chart, 2009 to 2026
QLT returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -11.9% |
| 3 months | +20.3% |
| 6 months | +14.8% |
| Year to date | +13.5% |
| 1 year | -10.1% |
| 3 years | -59.6% |
| 5 years | -54.2% |
| 10 years | -71.5% |
| Since Jun 9, 2009 | -4.5% |
| Compound annual growth, 17.3 years | -0.3% |
QLT records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- THB 10.46 on Sep 9, 2015
- All time low close
- THB 1.37 on Mar 20, 2026
- 52 week high
- THB 2.18 on Jul 17, 2026
- 52 week low
- THB 1.22 on Mar 4, 2026
- Deepest drawdown
- -86.9% from Sep 9, 2015 to Mar 20, 2026, not yet recovered
- Best single session
- +30.8% on Nov 15, 2023
- Worst single session
- -30.3% on Oct 19, 2023
- Volatility, 1 year annualised
- 50.2%
- Sessions closing higher, 1 year
- 33%
- Best calendar year
- 2012, +75%
- Worst calendar year
- 2023, -52%
QLT 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. 2009 starts on Jun 9, 2009; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | THB 1.47 | THB 2.18 | THB 1.22 | THB 1.78 | +13.5% | 4.5M | 186 |
| 2025 | THB 2.45 | THB 3.43 | THB 1.45 | THB 1.57 | -33.3% | 18M | 242 |
| 2024 | THB 2.86 | THB 3.19 | THB 1.94 | THB 2.35 | -16.7% | 29.4M | 243 |
| 2023 | THB 5.93 | THB 6.37 | THB 1.44 | THB 2.82 | -52.0% | 157.6M | 243 |
| 2022 | THB 3.89 | THB 9.90 | THB 3.85 | THB 5.88 | +51.2% | 260.8M | 241 |
| 2021 | THB 3.68 | THB 4.62 | THB 3.63 | THB 3.89 | +5.7% | 40.9M | 241 |
| 2020 | THB 3.58 | THB 4.73 | THB 2.86 | THB 3.68 | +2.7% | 12.7M | 243 |
| 2019 | THB 3.08 | THB 3.73 | THB 2.85 | THB 3.58 | +16.3% | 11.5M | 244 |
| 2018 | THB 4.51 | THB 4.76 | THB 2.89 | THB 3.08 | -31.7% | 17.6M | 245 |
| 2017 | THB 6.42 | THB 7.06 | THB 4.33 | THB 4.51 | -30.2% | 29.8M | 242 |
| 2016 | THB 9.17 | THB 9.44 | THB 5.22 | THB 6.46 | -27.9% | 10.8M | 244 |
| 2015 | THB 7.56 | THB 10.73 | THB 7.18 | THB 8.96 | +22.7% | 19.5M | 244 |
| 2014 | THB 6.63 | THB 9.46 | THB 6.39 | THB 7.31 | +10.2% | 13M | 245 |
| 2013 | THB 5.84 | THB 7.80 | THB 5.73 | THB 6.63 | +13.5% | 18.7M | 245 |
| 2012 | THB 3.29 | THB 6.59 | THB 3.21 | THB 5.84 | +74.9% | 37.8M | 245 |
| 2011 | THB 2.71 | THB 3.47 | THB 2.52 | THB 3.34 | +23.1% | 22.7M | 244 |
| 2010 | THB 3.15 | THB 3.22 | THB 2.31 | THB 2.71 | -13.9% | 52.1M | 244 |
| 2009 | THB 2.11 | THB 3.17 | THB 1.73 | THB 3.15 | n/a | 122.9M | 141 |
QLT monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | THB 1.78 | -11.9% |
| August 2026 | THB 2.02 | 0.0% |
| July 2026 | THB 2.02 | +34.7% |
| June 2026 | THB 1.50 | -0.7% |
| May 2026 | THB 1.51 | +2.0% |
| April 2026 | THB 1.48 | -6.9% |
| March 2026 | THB 1.59 | +11.9% |
| February 2026 | THB 1.42 | -3.3% |
| January 2026 | THB 1.47 | -6.3% |
| December 2025 | THB 1.57 | -10.6% |
| November 2025 | THB 1.75 | -0.6% |
| October 2025 | THB 1.76 | -10.9% |
About the QLT data
Daily bars. 4,222 sessions from Jun 9, 2009 to Sep 28, 2026, one row per SET 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 Sep 28, 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 SET trading days; minute timestamps are UTC. Prices are in THB. 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 Jun 9, 2009, 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/QLT/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on SET
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Common questions
QLT share price history
