TWSE · 6277 · stock

Aten International Co., Ltd (6277) stock price history

Every TWSE trading session of Aten International Co., Ltd from Oct 30, 2003 to Nov 13, 2026: 5,587 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 6277 data, free keyYear by year table

6277 adjusted close, 2003 to 2026

6277Aten International Co., Ltd
NT$71.20+23.2% over one year
20052010201520202025
NT$100.50
All time high, 2026
NT$103.50
52 week high, NT$55.52 low
5,587
Daily sessions since 2003

Last updated Nov 13, 2026, the last stored session. Refreshes after each trading day. Full 2003 to 2026 series and minute bars.

6277 key facts

  • Aten International Co., Ltd (6277) closed at NT$71.20 on Nov 13, 2026 on TWSE.
  • 6277's all time high close is NT$100.50, set on Oct 22, 2026; its all time low close is NT$10.09 on Oct 15, 2004.
  • 6277's 52 week range is NT$55.52 to NT$103.50.
  • 6277 returned +23.2% over the year to Nov 13, 2026 and +13.0% over five years.
  • Over ten years 6277 returned +73%, +5.6% a year compounded.
  • 6277's deepest drawdown was -75.0% from Aug 14, 2007 to Nov 14, 2008.
  • DataCedar holds 5,587 daily sessions of 6277 history from Oct 30, 2003 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

6277 price chart, 2003 to 2026

6277 adjusted close, Oct 30, 2003 to Nov 13, 2026NT$10.58NT$33.82NT$57.06NT$80.3020052010201520202025
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

6277 returns

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

PeriodReturn
1 month-12.2%
3 months-15.4%
6 months+3.9%
Year to date+19.9%
1 year+23.2%
3 years+4.8%
5 years+13.0%
10 years+72.6%
Since Oct 30, 2003+437.6%
Compound annual growth, 23.0 years+7.6%

6277 records

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

All time high close
NT$100.50 on Oct 22, 2026
All time low close
NT$10.09 on Oct 15, 2004
52 week high
NT$103.50 on Oct 22, 2026
52 week low
NT$55.52 on Mar 9, 2026
Deepest drawdown
-75.0% from Aug 14, 2007 to Nov 14, 2008, recovered Feb 21, 2014
Best single session
+14.8% on May 22, 2006
Worst single session
-11.0% on Dec 26, 2005
Volatility, 1 year annualised
34.6%
Sessions closing higher, 1 year
44%
Growth of 1 since 2003
5.4×
Best calendar year
2013, +107%
Worst calendar year
2008, -52%

6277 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. 2003 starts on Oct 30, 2003; 2026 runs to Nov 13, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$59.30NT$103.50NT$55.52NT$71.20+20.1%92.1M207
2025NT$69.43NT$71.37NT$53.69NT$59.30-14.8%16.9M242
2024NT$70.26NT$74.56NT$68.55NT$69.62-1.0%21.1M242
2023NT$63.66NT$74.25NT$63.41NT$70.35+10.5%44.3M237
2022NT$62.61NT$64.48NT$58.09NT$63.66+1.7%13M235
2021NT$60.84NT$66.96NT$58.11NT$62.61+2.9%30.6M229
2020NT$56.62NT$61.95NT$46.64NT$60.84+7.1%49.7M239
2019NT$54.06NT$61.27NT$51.84NT$56.82+8.7%49.4M233
2018NT$47.76NT$58.08NT$44.75NT$52.26+10.3%51.3M238
2017NT$42.21NT$48.04NT$41.63NT$47.37+12.4%29.8M236
2016NT$34.45NT$44.94NT$32.82NT$42.15+21.1%55.1M241
2015NT$38.35NT$43.84NT$28.37NT$34.80-9.3%58M246
2014NT$38.98NT$45.62NT$32.54NT$38.35-1.6%87.4M248
2013NT$18.88NT$40.50NT$17.56NT$38.98+107.2%100.8M244
2012NT$19.49NT$24.91NT$17.03NT$18.81-3.5%30.7M248
2011NT$19.06NT$30.23NT$16.50NT$19.49+2.3%69.7M246
2010NT$22.57NT$23.56NT$17.07NT$19.06-15.7%52.3M250
2009NT$12.64NT$24.07NT$11.45NT$22.60+80.6%338.8M244
2008NT$25.68NT$26.29NT$10.30NT$12.52-51.7%1B248
2007NT$22.69NT$45.14NT$21.68NT$25.92+15.4%1.3B239
2006NT$15.86NT$23.38NT$15.77NT$22.45+40.4%4.2B245
2005NT$11.74NT$16.72NT$9.76NT$15.99+36.2%1.1B252
2004NT$13.57NT$16.93NT$9.84NT$11.74-13.4%107.9M253
2003NT$13.24NT$14.41NT$12.34NT$13.57n/a23.2M45

6277 monthly closes, last 12 months

MonthMonth end closeChange
November 2026NT$71.20-20.6%
October 2026NT$89.70+16.5%
September 2026NT$77.00-1.4%
August 2026NT$78.10-2.6%
July 2026NT$80.20+18.1%
June 2026NT$67.92-10.1%
May 2026NT$75.58+12.7%
April 2026NT$67.05-0.3%
March 2026NT$67.24+14.5%
February 2026NT$58.72+0.3%
January 2026NT$58.52-1.3%
December 2025NT$59.30-3.3%

About the 6277 data

Daily bars. 5,587 sessions from Oct 30, 2003 to Nov 13, 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 Nov 6, 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 Oct 30, 2003, 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/twse%3A6277/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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