TWSE · 6416 · stock

CASwell, Inc. (6416) stock price history

Every TWSE trading session of CASwell, Inc. from Apr 18, 2013 to Sep 24, 2026: 3,280 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 6416 data, free keyYear by year table

6416 adjusted close, 2013 to 2026

6416CASwell, Inc.
NT$116.50+42.6% over one year
2014201620182020202220242026
NT$154.69
All time high, 2021
NT$124.00
52 week high, NT$72.94 low
3,280
Daily sessions since 2013

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2013 to 2026 series and minute bars.

6416 key facts

  • CASwell, Inc. (6416) closed at NT$116.50 on Sep 24, 2026 on TWSE.
  • 6416's all time high close is NT$154.69, set on Apr 21, 2021; its all time low close is NT$22.82 on May 20, 2013.
  • 6416's 52 week range is NT$72.94 to NT$124.00.
  • 6416 returned +42.6% over the year to Sep 24, 2026 and +46.0% over five years.
  • Over ten years 6416 returned +13%, +1.2% a year compounded.
  • 6416's deepest drawdown was -57.7% from Jan 23, 2018 to Oct 30, 2018.
  • DataCedar holds 3,280 daily sessions of 6416 history from Apr 18, 2013 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

6416 price chart, 2013 to 2026

6416 adjusted close, Apr 18, 2013 to Sep 24, 2026NT$23.30NT$66.26NT$109.22NT$152.182014201620182020202220242026
Adjusted daily close. 260 sampled points across the full history; the API serves every session.

6416 returns

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

PeriodReturn
1 month+17.7%
3 months+46.1%
6 months+51.6%
Year to date+30.8%
1 year+42.6%
3 years+54.8%
5 years+46.0%
10 years+13.2%
Since Apr 18, 2013+311.2%
Compound annual growth, 13.4 years+11.1%

6416 records

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

All time high close
NT$154.69 on Apr 21, 2021
All time low close
NT$22.82 on May 20, 2013
52 week high
NT$124.00 on Sep 17, 2026
52 week low
NT$72.94 on Nov 19, 2025
Deepest drawdown
-57.7% from Jan 23, 2018 to Oct 30, 2018, recovered Jun 24, 2020
Best single session
+14.2% on Jun 5, 2014
Worst single session
-10.7% on Aug 24, 2015
Volatility, 1 year annualised
38.3%
Sessions closing higher, 1 year
48%
Growth of 1 since 2013
4.1×
Best calendar year
2014, +98%
Worst calendar year
2018, -34%

6416 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. 2013 starts on Apr 18, 2013; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$89.38NT$124.00NT$73.43NT$116.50+31.5%92.3M178
2025NT$103.43NT$137.28NT$70.05NT$88.60-14.3%111.5M242
2024NT$92.94NT$156.55NT$92.02NT$103.43+11.8%239M242
2023NT$78.09NT$103.71NT$73.89NT$92.48+19.8%105M239
2022NT$86.11NT$98.09NT$66.23NT$77.21-10.2%60.1M246
2021NT$101.59NT$163.89NT$72.05NT$86.02-15.3%333.5M243
2020NT$78.94NT$143.87NT$74.76NT$101.59+29.0%589.8M245
2019NT$71.60NT$82.80NT$56.31NT$78.78+11.0%83.9M241
2018NT$108.71NT$138.03NT$54.74NT$70.97-34.4%112.2M245
2017NT$77.71NT$119.04NT$76.25NT$108.17+36.6%21.1M243
2016NT$90.31NT$129.62NT$72.43NT$79.17-11.6%29.5M244
2015NT$61.30NT$100.64NT$55.58NT$89.60+43.7%19.9M246
2014NT$32.27NT$68.01NT$27.43NT$62.34+98.5%21M248
2013NT$28.33NT$31.41NT$22.04NT$31.41n/a3.4M178

6416 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$116.50+14.2%
August 2026NT$102.00+17.1%
July 2026NT$87.10+11.8%
June 2026NT$77.90-9.9%
May 2026NT$86.46+9.8%
April 2026NT$78.78+4.1%
March 2026NT$75.66-5.0%
February 2026NT$79.65-3.4%
January 2026NT$82.47-6.9%
December 2025NT$88.60+12.7%
November 2025NT$78.58-4.0%
October 2025NT$81.89+2.7%

About the 6416 data

Daily bars. 3,280 sessions from Apr 18, 2013 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 Apr 18, 2013, 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/6416/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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