TWSE · 6446 · stock

PharmaEssentia Corporation (6446) stock price history

Every TWSE trading session of PharmaEssentia Corporation from Mar 11, 2014 to Sep 24, 2026: 3,061 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 6446 data, free keyYear by year table

6446 adjusted close, 2014 to 2026

6446PharmaEssentia Corporation
NT$1,155+147.1% over one year
201620182020202220242026
NT$1,585
All time high, 2026
NT$1,645
52 week high, NT$407.48 low
3,061
Daily sessions since 2014

Last updated Sep 24, 2026, the last stored session. Refreshes after each trading day. Full 2014 to 2026 series and minute bars.

6446 key facts

  • PharmaEssentia Corporation (6446) closed at NT$1,155 on Sep 24, 2026 on TWSE.
  • 6446's all time high close is NT$1,585, set on Aug 26, 2026; its all time low close is NT$39.19 on Aug 24, 2015.
  • 6446's 52 week range is NT$407.48 to NT$1,645.
  • 6446 returned +147.1% over the year to Sep 24, 2026 and +1,380% over five years.
  • Over ten years 6446 returned +634%, +22.1% a year compounded.
  • 6446's deepest drawdown was -76.2% from Mar 11, 2014 to Aug 24, 2015.
  • DataCedar holds 3,061 daily sessions of 6446 history from Mar 11, 2014 and minute bars from Sep 15, 2026, adjusted for splits and dividends, served by the API under a key.

6446 price chart, 2014 to 2026

6446 adjusted close, Mar 11, 2014 to Sep 24, 2026NT$49.24NT$150.46NT$459.78NT$1,4052014201620182020202220242026
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

6446 returns

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

PeriodReturn
1 month-21.7%
3 months+10.6%
6 months+106.9%
Year to date+171.5%
1 year+147.1%
3 years+327.1%
5 years+1,380%
10 years+633.6%
Since Mar 11, 2014+601.1%
Compound annual growth, 12.5 years+16.8%

6446 records

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

All time high close
NT$1,585 on Aug 26, 2026
All time low close
NT$39.19 on Aug 24, 2015
52 week high
NT$1,645 on Aug 31, 2026
52 week low
NT$407.48 on Nov 19, 2025
Deepest drawdown
-76.2% from Mar 11, 2014 to Aug 24, 2015, recovered Jun 14, 2016
Best single session
+20.2% on Dec 1, 2015
Worst single session
-18.0% on Mar 16, 2020
Volatility, 1 year annualised
53.9%
Sessions closing higher, 1 year
46%
Growth of 1 since 2014
7.0×
Best calendar year
2021, +212%
Worst calendar year
2019, -37%

6446 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. 2014 starts on Mar 11, 2014; 2026 runs to Sep 24, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026NT$423.24NT$1,645NT$423.24NT$1,155+172.9%593M178
2025NT$499.60NT$644.54NT$356.28NT$423.24-15.0%618.7M242
2024NT$280.97NT$595.15NT$227.53NT$497.98+77.7%670.4M242
2023NT$392.72NT$429.15NT$221.86NT$280.16-27.5%627.8M239
2022NT$230.29NT$497.36NT$187.11NT$386.24+64.9%524.6M246
2021NT$75.48NT$337.43NT$55.17NT$234.29+212.4%250.2M243
2020NT$87.38NT$114.54NT$42.20NT$75.00-13.4%256.4M245
2019NT$134.23NT$146.43NT$75.58NT$86.60-37.0%93.3M241
2018NT$112.18NT$160.60NT$111.40NT$137.38+22.0%170.8M245
2017NT$127.14NT$138.95NT$105.49NT$112.58-11.5%110M243
2016NT$140.56NT$183.74NT$121.24NT$127.14-14.3%270.4M244
2015NT$110.33NT$156.74NT$35.46NT$148.34+39.4%131M246
2014NT$164.75NT$200.24NT$95.81NT$106.41n/a104.6M207

6446 monthly closes, last 12 months

MonthMonth end closeChange
September 2026NT$1,155-17.2%
August 2026NT$1,395+31.6%
July 2026NT$1,060-12.2%
June 2026NT$1,207+44.1%
May 2026NT$837.48+40.7%
April 2026NT$595.24+10.2%
March 2026NT$540.31-17.1%
February 2026NT$651.97-6.0%
January 2026NT$693.40+63.8%
December 2025NT$423.24-8.9%
November 2025NT$464.66+3.6%
October 2025NT$448.46-3.3%

About the 6446 data

Daily bars. 3,061 sessions from Mar 11, 2014 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 29, 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 Mar 11, 2014, 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/6446/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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