Xetra · BAYN · stock

Bayer Aktiengesellschaft (BAYN) stock price history

Every Xetra trading session of Bayer Aktiengesellschaft from Dec 16, 1996 to Sep 28, 2026: 7,628 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 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.

BAYN adjusted close, 1996 to 2026

BAYNBayer Aktiengesellschaft
€50.74+86.7% over one year
200020052010201520202025
€105.74
All time high, 2015
€53.92
52 week high, €25.71 low
7,628
Daily sessions since 1996

Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 1996 to 2026 series and minute bars.

BAYN key facts

  • Bayer Aktiengesellschaft (BAYN) closed at €50.74 on Sep 28, 2026 on Xetra.
  • BAYN's all time high close is €105.74, set on Apr 10, 2015; its all time low close is €5.31 on Mar 17, 2003.
  • BAYN's 52 week range is €25.71 to €53.92.
  • BAYN returned +86.7% over the year to Sep 28, 2026 and +17.7% over five years.
  • Over ten years BAYN returned -25%, -2.8% a year compounded.
  • BAYN's deepest drawdown was -82.3% from Apr 10, 2015 to Dec 19, 2024.
  • DataCedar holds 7,628 daily sessions of BAYN history from Dec 16, 1996 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.

BAYN price chart, 1996 to 2026

BAYN adjusted close, Dec 16, 1996 to Sep 28, 2026€6.40€16.29€41.51€105.74200020052010201520202025
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

BAYN returns

Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.

PeriodReturn
1 month+4.3%
3 months+8.0%
6 months+33.0%
Year to date+37.5%
1 year+86.7%
3 years+13.2%
5 years+17.7%
10 years-24.6%
Since Dec 16, 1996+246.1%
Compound annual growth, 29.8 years+4.3%

BAYN records

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

All time high close
€105.74 on Apr 10, 2015
All time low close
€5.31 on Mar 17, 2003
52 week high
€53.92 on Jul 3, 2026
52 week low
€25.71 on Nov 7, 2025
Deepest drawdown
-82.3% from Apr 10, 2015 to Dec 19, 2024, not yet recovered
Best single session
+39.1% on Mar 18, 2003
Worst single session
-18.0% on Nov 20, 2023
Volatility, 1 year annualised
41.1%
Sessions closing higher, 1 year
50%
Growth of 1 since 1996
3.5×
Best calendar year
2025, +93%
Worst calendar year
2024, -42%

BAYN 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. 1996 starts on Dec 16, 1996; 2026 runs to Sep 28, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026€36.89€53.92€32.96€50.74+37.5%573.7M189
2025€19.07€37.03€18.24€36.90+92.5%847.9M253
2024€33.40€35.67€18.27€19.17-42.3%965.8M254
2023€46.09€62.29€29.87€33.24-27.5%690.9M255
2022€43.52€64.03€43.35€45.85+6.2%807.8M257
2021€43.35€53.03€40.33€43.17+1.3%765M255
2020€61.43€66.23€35.31€42.60-30.8%1B254
2019€48.17€62.86€43.96€61.55+26.0%802.1M251
2018€79.64€85.14€47.08€48.87-39.2%881.8M252
2017€74.52€95.71€74.35€80.33+7.5%491.7M255
2016€83.32€83.32€62.93€74.75-12.2%678.5M255
2015€82.49€105.92€78.37€85.16+4.2%583.5M254
2014€72.60€87.81€64.68€81.73+13.2%511.4M252
2013€50.63€73.06€47.48€72.21+45.2%523.3M252
2012€32.99€50.56€32.92€49.73+50.0%670.8M253
2011€36.18€39.90€23.73€33.16-8.4%971.1M256
2010€35.71€38.71€28.31€36.18+1.8%938.9M256
2009€26.00€35.96€20.01€35.55+39.8%934.8M254
2008€37.01€39.67€20.23€25.43-31.9%1.5B254
2007€23.97€37.46€23.30€37.33+56.9%1.4B252
2006€20.13€24.02€17.69€23.80+18.3%1.4B255
2005€14.01€20.59€13.08€20.12+44.6%1.1B260
2004€12.67€14.24€10.38€13.91+9.8%1.1B262
2003€10.56€12.91€5.06€12.67+20.0%1.4B261
2002€18.03€20.60€8.79€10.56-41.5%934.7M261
2001€27.32€28.36€12.04€18.03-34.0%781.2M261
2000€23.21€27.63€18.77€27.32+24.6%538.6M260
1999€17.04€22.64€14.13€21.92+28.7%452.1M261
1998€16.18€23.66€13.97€17.04+5.3%545.4M261
1997€15.30€19.55€13.36€16.18+5.7%486.1M261
1996€14.95€15.30€14.42€15.30n/a8.5M12

BAYN monthly closes, last 12 months

MonthMonth end closeChange
September 2026€50.74+3.5%
August 2026€49.04+2.1%
July 2026€48.05-0.7%
June 2026€48.41+32.5%
May 2026€36.53-4.0%
April 2026€38.05-3.1%
March 2026€39.27-6.2%
February 2026€41.89-5.7%
January 2026€44.43+20.4%
December 2025€36.90+21.4%
November 2025€30.40+13.1%
October 2025€26.87-4.5%

About the BAYN data

Daily bars. 7,628 sessions from Dec 16, 1996 to Sep 28, 2026, one row per Xetra 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 17, 2026 forward, most recent session Sep 28, 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 Xetra trading days; minute timestamps are UTC. Prices are in EUR. 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 16, 1996, 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/BAYN/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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Common questions

BAYN share price history

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