TWSE · 3545 · stock

FocalTech Systems Co., Ltd. (3545) stock price history

Every TWSE trading session of FocalTech Systems Co., Ltd. from Jul 3, 2007 to Sep 24, 2026: 4,718 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 3545 data, free keyYear by year table

3545 adjusted close, 2007 to 2026

3545FocalTech Systems Co., Ltd.
NT$51.00-22.4% over one year
2010201520202025
NT$224.09
All time high, 2021
NT$67.58
52 week high, NT$40.53 low
4,718
Daily sessions since 2007

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2007 to 2026 series and minute bars.

3545 key facts

  • FocalTech Systems Co., Ltd. (3545) closed at NT$51.00 on Sep 24, 2026 on TWSE.
  • 3545's all time high close is NT$224.09, set on Jul 27, 2021; its all time low close is NT$20.27 on Dec 5, 2008.
  • 3545's 52 week range is NT$40.53 to NT$67.58.
  • 3545 returned -22.4% over the year to Sep 24, 2026 and -60.5% over five years.
  • Over ten years 3545 returned +38%, +3.3% a year compounded.
  • 3545's deepest drawdown was -87.6% from Jul 31, 2007 to Dec 5, 2008.
  • DataCedar holds 4,718 daily sessions of 3545 history from Jul 3, 2007 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

3545 price chart, 2007 to 2026

3545 adjusted close, Jul 3, 2007 to Sep 24, 2026NT$21.71NT$85.56NT$149.42NT$213.272010201520202025
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

3545 returns

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

PeriodReturn
1 month+1.6%
3 months-13.7%
6 months+22.1%
Year to date-0.9%
1 year-22.4%
3 years-31.6%
5 years-60.5%
10 years+37.8%
Since Jul 3, 2007-63.9%
Compound annual growth, 19.2 years-5.2%

3545 records

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

All time high close
NT$224.09 on Jul 27, 2021
All time low close
NT$20.27 on Dec 5, 2008
52 week high
NT$67.58 on Sep 25, 2025
52 week low
NT$40.53 on Mar 23, 2026
Deepest drawdown
-87.6% from Jul 31, 2007 to Dec 5, 2008, recovered Apr 7, 2021
Best single session
+13.6% on Sep 28, 2011
Worst single session
-12.8% on Dec 15, 2015
Volatility, 1 year annualised
42.3%
Sessions closing higher, 1 year
46%
Best calendar year
2009, +252%
Worst calendar year
2008, -75%

3545 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 Jul 3, 2007; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$50.86NT$62.47NT$40.53NT$51.00+0.3%294.8M178
2025NT$85.50NT$85.50NT$47.91NT$50.86-40.4%273.8M242
2024NT$106.58NT$106.58NT$63.93NT$85.31-20.0%634.1M242
2023NT$55.16NT$128.84NT$55.16NT$106.58+93.2%1.2B239
2022NT$136.57NT$140.11NT$53.09NT$55.16-59.1%1.1B246
2021NT$72.48NT$230.27NT$61.20NT$134.99+86.8%6.4B243
2020NT$26.11NT$78.82NT$24.43NT$72.25+179.0%2B245
2019NT$28.57NT$29.05NT$20.80NT$25.90-9.0%579.1M241
2018NT$32.74NT$35.97NT$20.80NT$28.46-12.2%480.2M245
2017NT$36.41NT$46.46NT$28.62NT$32.43-10.2%1B243
2016NT$34.58NT$40.15NT$24.71NT$36.10+5.5%593.6M244
2015NT$53.52NT$55.98NT$25.49NT$34.23-37.0%543.8M246
2014NT$60.08NT$81.15NT$40.49NT$54.36-9.5%401.4M248
2013NT$52.95NT$91.50NT$47.82NT$60.08+16.1%406.2M244
2012NT$36.20NT$54.96NT$34.68NT$51.75+43.0%325.5M248
2011NT$76.97NT$85.53NT$29.79NT$36.20-52.7%291.2M247
2010NT$91.77NT$94.70NT$49.95NT$76.61-17.1%254.9M250
2009NT$26.24NT$93.86NT$25.84NT$92.35+252.0%469.4M249
2008NT$103.20NT$106.28NT$19.93NT$26.24-74.8%1.4B251
2007NT$106.28NT$165.27NT$78.33NT$103.95n/a46.7M127

3545 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$51.00+4.9%
August 2026NT$48.60+0.9%
July 2026NT$48.15-12.0%
June 2026NT$54.70-6.6%
May 2026NT$58.53+18.8%
April 2026NT$49.29+5.7%
March 2026NT$46.63-9.9%
February 2026NT$51.74-2.2%
January 2026NT$52.92+4.1%
December 2025NT$50.86-2.3%
November 2025NT$52.04-10.6%
October 2025NT$58.24-11.1%

About the 3545 data

Daily bars. 4,718 sessions from Jul 3, 2007 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 Jul 3, 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/3545/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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