BYMA · BAYN · stock

Bayer Aktiengesellschaft (BAYN) stock price history

Every BYMA trading session of Bayer Aktiengesellschaft from May 14, 2021 to Sep 28, 2026: 1,318 daily bars, adjusted for splits and dividends, with minute bars from Sep 16, 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 BAYN data, free keyYear by year table

BAYN adjusted close, 2021 to 2026

BAYNBayer Aktiengesellschaft
ARS 27,660+627.9% over one year
20222023202420252026
ARS 31,480
All time high, 2026
ARS 33,000
52 week high, ARS 3,800 low
1,318
Daily sessions since 2021

Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2021 to 2026 series and minute bars.

BAYN key facts

  • Bayer Aktiengesellschaft (BAYN) closed at ARS 27,660 on Sep 28, 2026 on BYMA.
  • BAYN's all time high close is ARS 31,480, set on Sep 4, 2026; its all time low close is ARS 3,798 on May 14, 2021.
  • BAYN's 52 week range is ARS 3,800 to ARS 33,000.
  • BAYN returned +627.9% over the year to Sep 28, 2026 and +628.2% over five years.
  • Since May 14, 2021 BAYN returned +628%, +44.7% a year compounded.
  • BAYN's deepest drawdown was -12.1% from Sep 4, 2026 to Sep 28, 2026.
  • DataCedar holds 1,318 daily sessions of BAYN history from May 14, 2021 and minute bars from Sep 16, 2026, adjusted for splits and dividends, served by the API under a key.

BAYN price chart, 2021 to 2026

BAYN adjusted close, May 14, 2021 to Sep 28, 2026ARS 3,798ARS 13,012ARS 22,226ARS 31,440202120222023202420252026
Adjusted daily close. 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-11.6%
3 months+627.9%
6 months+627.9%
Year to date+627.9%
1 year+627.9%
3 years+627.9%
5 years+628.2%
10 yearsn/a
Since May 14, 2021+628.2%
Compound annual growth, 5.4 years+44.7%

BAYN records

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

All time high close
ARS 31,480 on Sep 4, 2026
All time low close
ARS 3,798 on May 14, 2021
52 week high
ARS 33,000 on Aug 13, 2026
52 week low
ARS 3,800 on Sep 29, 2025
Deepest drawdown
-12.1% from Sep 4, 2026 to Sep 28, 2026, not yet recovered
Best single session
+689.5% on Aug 12, 2026
Worst single session
-9.9% on Aug 13, 2026
Volatility, 1 year annualised
208.3%
Sessions closing higher, 1 year
6%
Growth of 1 since 2021
7.3×
Best calendar year
2023, +0%
Worst calendar year
2024, +0%

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. 2021 starts on May 14, 2021; 2026 runs to Sep 28, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026ARS 3,800ARS 33,000ARS 3,800ARS 27,660+627.9%6.6K187
2025ARS 3,800ARS 3,800ARS 3,800ARS 3,800+0.0%0243
2024ARS 3,800ARS 3,800ARS 3,800ARS 3,800+0.0%0246
2023ARS 3,799ARS 3,800ARS 3,799ARS 3,800+0.0%0243
2022ARS 3,798ARS 3,799ARS 3,798ARS 3,799+0.0%0244
2021ARS 3,798ARS 3,798ARS 3,798ARS 3,798n/a210155

BAYN monthly closes, last 12 months

MonthMonth end closeChange
September 2026ARS 27,660-6.9%
August 2026ARS 29,700+681.6%
July 2026ARS 3,8000.0%
June 2026ARS 3,8000.0%
May 2026ARS 3,8000.0%
April 2026ARS 3,800+0.0%
March 2026ARS 3,8000.0%
February 2026ARS 3,8000.0%
January 2026ARS 3,8000.0%
December 2025ARS 3,8000.0%
November 2025ARS 3,8000.0%
October 2025ARS 3,8000.0%

About the BAYN data

Daily bars. 1,318 sessions from May 14, 2021 to Sep 28, 2026, one row per BYMA 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 16, 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 BYMA trading days; minute timestamps are UTC. Prices are in ARS. 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 May 14, 2021, 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"

Nearby on BYMA

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  • BAK Braskem S.A.
  • BBAR Banco BBVA Argentina S.A.
  • BBAS3 Banco do Brasil S.A.
  • BBD Banco Bradesco S.A.
  • BBDC3 Banco Bradesco S.A.

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