TWSE · 6743 · stock

AMPACS Corporation (6743) stock price history

Every TWSE trading session of AMPACS Corporation from Dec 5, 2019 to Sep 24, 2026: 1,654 daily bars, adjusted for splits and dividends, with minute bars from Sep 15, 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 6743 data, free keyYear by year table

6743 adjusted close, 2019 to 2026

6743AMPACS Corporation
NT$30.60+3.9% over one year
202220242026
NT$124.70
All time high, 2021
NT$30.70
52 week high, NT$19.82 low
1,654
Daily sessions since 2019

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2019 to 2026 series and minute bars.

6743 key facts

  • AMPACS Corporation (6743) closed at NT$30.60 on Sep 24, 2026 on TWSE.
  • 6743's all time high close is NT$124.70, set on Mar 18, 2021; its all time low close is NT$16.30 on Mar 19, 2020.
  • 6743's 52 week range is NT$19.82 to NT$30.70.
  • 6743 returned +3.9% over the year to Sep 24, 2026 and -52.8% over five years.
  • Since Dec 5, 2019 6743 returned +52%, +6.3% a year compounded.
  • 6743's deepest drawdown was -84.0% from Mar 18, 2021 to Apr 2, 2026.
  • DataCedar holds 1,654 daily sessions of 6743 history from Dec 5, 2019 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

6743 price chart, 2019 to 2026

6743 adjusted close, Dec 5, 2019 to Sep 24, 2026NT$18.51NT$51.39NT$84.27NT$117.1420192020202120222023202420252026
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

6743 returns

Price return from the last close on or before the window start to Sep 24, 2026, on adjusted closes.

PeriodReturn
1 month+22.2%
3 months+13.8%
6 months+43.0%
Year to date+23.3%
1 year+3.9%
3 years-30.1%
5 years-52.8%
10 yearsn/a
Since Dec 5, 2019+51.8%
Compound annual growth, 6.8 years+6.3%

6743 records

Measured on the stored closes; every figure is reproducible from the API series.

All time high close
NT$124.70 on Mar 18, 2021
All time low close
NT$16.30 on Mar 19, 2020
52 week high
NT$30.70 on Sep 24, 2026
52 week low
NT$19.82 on Mar 31, 2026
Deepest drawdown
-84.0% from Mar 18, 2021 to Apr 2, 2026, not yet recovered
Best single session
+196.1% on Jul 27, 2020
Worst single session
-26.7% on Mar 19, 2020
Volatility, 1 year annualised
34.1%
Sessions closing higher, 1 year
42%
Best calendar year
2020, +310%
Worst calendar year
2022, -49%

6743 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. 2019 starts on Dec 5, 2019; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$24.82NT$30.70NT$19.82NT$30.60+21.5%65.7M178
2025NT$37.84NT$41.90NT$24.24NT$25.18-33.5%42.5M242
2024NT$46.39NT$69.20NT$36.31NT$37.84-18.4%185.9M242
2023NT$32.34NT$72.47NT$31.72NT$46.39+45.7%118.1M239
2022NT$62.62NT$71.27NT$24.94NT$31.85-49.1%67.2M246
2021NT$89.66NT$129.85NT$48.09NT$62.54-30.0%283.5M243
2020NT$21.71NT$103.40NT$16.10NT$89.32+310.1%126.6M245
2019NT$22.82NT$26.27NT$17.10NT$21.78n/a1.9M19

6743 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$30.60+10.9%
August 2026NT$27.60+2.6%
July 2026NT$26.89-1.5%
June 2026NT$27.30+3.2%
May 2026NT$26.44-1.2%
April 2026NT$26.76+32.9%
March 2026NT$20.14-15.7%
February 2026NT$23.88-4.5%
January 2026NT$25.00-0.7%
December 2025NT$25.18-5.3%
November 2025NT$26.58+0.5%
October 2025NT$26.44-7.0%

About the 6743 data

Daily bars. 1,654 sessions from Dec 5, 2019 to Sep 24, 2026, one row per TWSE 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 15, 2026 forward, most recent session Sep 29, 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 TWSE trading days; minute timestamps are UTC. Prices are in TWD. 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 Dec 5, 2019, 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/6743/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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