TWSE · 8070 · stock

Chang Wah Electromaterials Inc. (8070) stock price history

Every TWSE trading session of Chang Wah Electromaterials Inc. from Dec 31, 2007 to Nov 12, 2026: 4,587 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 8070 data, free keyYear by year table

8070 adjusted close, 2007 to 2026

8070Chang Wah Electromaterials Inc.
NT$47.40+5.1% over one year
2010201520202025
NT$62.96
All time high, 2026
NT$63.63
52 week high, NT$37.89 low
4,587
Daily sessions since 2007

Last updated Nov 12, 2026, the last stored session. Refreshes after each trading day. Full 2007 to 2026 series and minute bars.

8070 key facts

  • Chang Wah Electromaterials Inc. (8070) closed at NT$47.40 on Nov 12, 2026 on TWSE.
  • 8070's all time high close is NT$62.96, set on Jun 4, 2026; its all time low close is NT$1.36 on Jan 21, 2009.
  • 8070's 52 week range is NT$37.89 to NT$63.63.
  • 8070 returned +5.1% over the year to Nov 12, 2026 and +82.4% over five years.
  • Over ten years 8070 returned +499%, +19.6% a year compounded.
  • 8070's deepest drawdown was -73.0% from Dec 31, 2007 to Jan 21, 2009.
  • DataCedar holds 4,587 daily sessions of 8070 history from Dec 31, 2007 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

8070 price chart, 2007 to 2026

8070 adjusted close, Dec 31, 2007 to Nov 12, 2026NT$1.43NT$4.99NT$17.39NT$60.632010201520202025
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

8070 returns

Price return from the last close on or before the window start to Nov 12, 2026, on adjusted closes.

PeriodReturn
1 month-9.2%
3 months-2.7%
6 months+3.3%
Year to date+14.1%
1 year+5.1%
3 years+75.2%
5 years+82.4%
10 years+499.2%
Since Dec 31, 2007+839.6%
Compound annual growth, 18.9 years+12.6%

8070 records

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

All time high close
NT$62.96 on Jun 4, 2026
All time low close
NT$1.36 on Jan 21, 2009
52 week high
NT$63.63 on Jun 4, 2026
52 week low
NT$37.89 on Mar 4, 2026
Deepest drawdown
-73.0% from Dec 31, 2007 to Jan 21, 2009, recovered Oct 23, 2009
Best single session
+20.8% on Aug 18, 2020
Worst single session
-9.9% on Apr 8, 2025
Volatility, 1 year annualised
41.2%
Sessions closing higher, 1 year
50%
Growth of 1 since 2007
9.4×
Best calendar year
2009, +353%
Worst calendar year
2008, -71%

8070 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. 2007 starts on Dec 31, 2007; 2026 runs to Nov 12, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$42.33NT$63.63NT$37.89NT$47.40+13.1%975.3M206
2025NT$41.45NT$49.05NT$28.07NT$41.89+1.8%1B242
2024NT$29.88NT$64.10NT$28.94NT$41.13+38.0%1.5B240
2023NT$24.22NT$31.01NT$24.02NT$29.80+23.0%209.5M239
2022NT$29.12NT$29.16NT$22.92NT$24.22-16.6%311.1M245
2021NT$22.03NT$32.62NT$20.02NT$29.05+32.0%1.2B243
2020NT$12.05NT$23.70NT$8.07NT$22.00+82.5%809.1M244
2019NT$8.31NT$12.27NT$7.76NT$12.05+44.9%408.3M241
2018NT$8.18NT$9.06NT$6.90NT$8.31+1.6%363.6M241
2017NT$7.08NT$9.16NT$6.69NT$8.18+14.7%865.6M235
2016NT$4.67NT$8.18NT$4.10NT$7.14+52.4%659.2M238
2015NT$3.69NT$6.03NT$3.56NT$4.68+26.9%795.5M245
2014NT$4.42NT$4.75NT$3.06NT$3.69-15.4%545.8M248
2013NT$4.40NT$5.69NT$3.63NT$4.36+0.1%659.7M244
2012NT$2.65NT$4.64NT$2.65NT$4.36+64.3%443.2M248
2011NT$6.82NT$7.03NT$2.51NT$2.65-61.0%623.6M246
2010NT$6.47NT$7.41NT$5.23NT$6.80+2.6%1.4B250
2009NT$1.47NT$6.71NT$1.32NT$6.63+352.5%1.3B246
2008NT$5.04NT$5.04NT$1.32NT$1.47-71.0%8.3B245
2007NT$5.15NT$5.15NT$4.99NT$5.04n/a5.2M1

8070 monthly closes, last 12 months

MonthMonth end closeChange
November 2026NT$47.40-1.6%
October 2026NT$48.15-4.1%
September 2026NT$50.200.0%
August 2026NT$50.20+10.0%
July 2026NT$45.65-14.8%
June 2026NT$53.60+5.9%
May 2026NT$50.62+9.5%
April 2026NT$46.23+12.7%
March 2026NT$41.02-2.0%
February 2026NT$41.84-6.1%
January 2026NT$44.54+6.3%
December 2025NT$41.89-1.7%

About the 8070 data

Daily bars. 4,587 sessions from Dec 31, 2007 to Nov 12, 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 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 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 31, 2007, 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%3A8070/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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