TWSE · 3380 · stock

Alpha Networks Inc. (3380) stock price history

Every TWSE trading session of Alpha Networks Inc. from Dec 20, 2004 to Sep 24, 2026: 5,353 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 3380 data, free keyYear by year table

3380 adjusted close, 2004 to 2026

3380Alpha Networks Inc.
NT$31.60-3.6% over one year
2010201520202025
NT$43.09
All time high, 2023
NT$43.28
52 week high, NT$25.55 low
5,353
Daily sessions since 2004

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2004 to 2026 series and minute bars.

3380 key facts

  • Alpha Networks Inc. (3380) closed at NT$31.60 on Sep 24, 2026 on TWSE.
  • 3380's all time high close is NT$43.09, set on Jul 17, 2023; its all time low close is NT$6.70 on Nov 20, 2008.
  • 3380's 52 week range is NT$25.55 to NT$43.28.
  • 3380 returned -3.6% over the year to Sep 24, 2026 and +43.6% over five years.
  • Over ten years 3380 returned +123%, +8.4% a year compounded.
  • 3380's deepest drawdown was -68.1% from Jul 10, 2007 to Nov 20, 2008.
  • DataCedar holds 5,353 daily sessions of 3380 history from Dec 20, 2004 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

3380 price chart, 2004 to 2026

3380 adjusted close, Dec 20, 2004 to Sep 24, 2026NT$6.96NT$17.37NT$27.79NT$38.2020052010201520202025
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

3380 returns

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

PeriodReturn
1 month+16.4%
3 months-7.0%
6 months-4.9%
Year to date+2.2%
1 year-3.6%
3 years-12.1%
5 years+43.6%
10 years+123.4%
Since Dec 20, 2004+316.7%
Compound annual growth, 21.8 years+6.8%

3380 records

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

All time high close
NT$43.09 on Jul 17, 2023
All time low close
NT$6.70 on Nov 20, 2008
52 week high
NT$43.28 on Apr 9, 2026
52 week low
NT$25.55 on Jul 29, 2026
Deepest drawdown
-68.1% from Jul 10, 2007 to Nov 20, 2008, recovered Jun 16, 2017
Best single session
+14.7% on May 22, 2006
Worst single session
-12.8% on May 29, 2006
Volatility, 1 year annualised
53.3%
Sessions closing higher, 1 year
48%
Growth of 1 since 2004
4.2×
Best calendar year
2005, +73%
Worst calendar year
2008, -31%

3380 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. 2004 starts on Dec 20, 2004; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$30.68NT$43.28NT$25.55NT$31.60+2.4%832.2M178
2025NT$33.23NT$35.40NT$21.27NT$30.87-7.5%465.6M242
2024NT$34.88NT$37.50NT$25.49NT$33.37-4.2%723.1M242
2023NT$25.29NT$45.03NT$24.98NT$34.84+38.7%1B239
2022NT$29.41NT$31.30NT$20.70NT$25.11-13.6%675.1M246
2021NT$26.19NT$34.49NT$19.72NT$29.06+11.5%1.1B243
2020NT$19.36NT$27.90NT$11.50NT$26.06+35.2%1B245
2019NT$12.98NT$21.12NT$12.67NT$19.28+49.5%812.6M241
2018NT$17.80NT$19.96NT$10.09NT$12.90-27.2%885.3M245
2017NT$13.97NT$21.72NT$13.86NT$17.72+27.2%1.8B243
2016NT$11.97NT$17.20NT$9.23NT$13.93+17.5%689M244
2015NT$12.97NT$17.58NT$7.86NT$11.86-8.5%689.1M246
2014NT$14.65NT$18.14NT$10.09NT$12.97-11.5%439.6M248
2013NT$12.52NT$15.02NT$11.32NT$14.65+18.1%263.8M244
2012NT$12.90NT$16.67NT$10.39NT$12.40-3.9%441.3M248
2011NT$13.96NT$14.99NT$11.35NT$12.90-7.6%456.3M247
2010NT$15.12NT$16.85NT$12.37NT$13.96-6.5%643.1M250
2009NT$9.55NT$16.31NT$7.61NT$14.94+56.4%1.4B249
2008NT$13.67NT$14.67NT$6.33NT$9.55-30.8%3.4B251
2007NT$13.40NT$21.76NT$11.85NT$13.81+2.2%23.1B244
2006NT$14.05NT$15.65NT$10.58NT$13.51-3.9%13.4B248
2005NT$8.14NT$14.39NT$6.82NT$14.05+72.7%26.4B260
2004NT$7.58NT$8.66NT$7.58NT$8.14n/a32.5M10

3380 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$31.60+10.9%
August 2026NT$28.50+3.8%
July 2026NT$27.45-18.1%
June 2026NT$33.53-11.8%
May 2026NT$38.01+14.9%
April 2026NT$33.09-4.1%
March 2026NT$34.52+12.2%
February 2026NT$30.78-5.3%
January 2026NT$32.50+5.3%
December 2025NT$30.87+5.6%
November 2025NT$29.25-8.6%
October 2025NT$32.01+11.7%

About the 3380 data

Daily bars. 5,353 sessions from Dec 20, 2004 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 24, 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 20, 2004, 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/3380/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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