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 Nov 13, 2026: 4,128 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.

Get QLT data, free keyYear by year table

QLT adjusted close, 2009 to 2026

QLTQualitech Public Company Limited
THB 1.65-6.5% over one year
2010201520202025
THB 10.46
All time high, 2015
THB 2.18
52 week high, THB 1.22 low
4,128
Daily sessions since 2009

Last updated Nov 13, 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 1.65 on Nov 13, 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 -6.5% over the year to Nov 13, 2026 and -56.7% over five years.
  • Over ten years QLT returned -73%, -12.2% a year compounded.
  • QLT's deepest drawdown was -86.9% from Sep 9, 2015 to Mar 20, 2026.
  • DataCedar holds 4,128 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 adjusted close, Jun 9, 2009 to Nov 13, 2026THB 1.37THB 4.13THB 6.89THB 9.642010201520202025
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

QLT returns

Price return from the last close on or before the window start to Nov 13, 2026, on adjusted closes.

PeriodReturn
1 month-7.3%
3 months-17.5%
6 months+7.8%
Year to date+5.2%
1 year-6.5%
3 years-17.5%
5 years-56.7%
10 years-72.7%
Since Jun 9, 2009-11.5%
Compound annual growth, 17.4 years-0.7%

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
49.8%
Sessions closing higher, 1 year
32%
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 Nov 13, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026THB 1.47THB 2.18THB 1.22THB 1.65+5.2%4.9M213
2025THB 2.45THB 3.43THB 1.45THB 1.57-33.3%18M242
2024THB 2.86THB 3.19THB 1.94THB 2.35-16.7%29.4M243
2023THB 5.93THB 6.37THB 1.44THB 2.82-52.0%144.9M234
2022THB 3.89THB 9.90THB 3.85THB 5.88+51.2%260.8M241
2021THB 3.68THB 4.62THB 3.63THB 3.89+5.7%40.8M238
2020THB 3.58THB 4.73THB 2.86THB 3.68+2.7%11.6M238
2019THB 3.08THB 3.73THB 2.85THB 3.58+16.3%11.5M244
2018THB 4.51THB 4.76THB 2.89THB 3.08-31.7%17.3M240
2017THB 6.42THB 7.06THB 4.33THB 4.51-30.2%29.7M236
2016THB 9.17THB 9.44THB 5.22THB 6.46-27.9%10M226
2015THB 7.56THB 10.73THB 7.18THB 8.96+22.7%19.5M244
2014THB 6.63THB 9.46THB 6.39THB 7.31+10.2%11.4M219
2013THB 5.84THB 7.80THB 5.73THB 6.63+13.5%17.4M233
2012THB 3.29THB 6.59THB 3.21THB 5.84+74.9%34.5M229
2011THB 2.71THB 3.47THB 2.52THB 3.34+23.1%20.7M223
2010THB 3.15THB 3.22THB 2.31THB 2.71-13.9%52.1M244
2009THB 2.11THB 3.17THB 1.73THB 3.15n/a122.9M141

QLT monthly closes, last 12 months

MonthMonth end closeChange
November 2026THB 1.65-8.3%
October 2026THB 1.80+2.9%
September 2026THB 1.75-13.4%
August 2026THB 2.020.0%
July 2026THB 2.02+34.7%
June 2026THB 1.50-0.7%
May 2026THB 1.51+2.0%
April 2026THB 1.48-6.9%
March 2026THB 1.59+11.9%
February 2026THB 1.42-3.3%
January 2026THB 1.47-6.3%
December 2025THB 1.57-10.6%

About the QLT data

Daily bars. 4,128 sessions from Jun 9, 2009 to Nov 13, 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 Nov 11, 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/set%3AQLT/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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