B3 · MRCK34 · stock
Merck & Co., Inc. (MRCK34) stock price history
Every B3 trading session of Merck & Co., Inc. from Dec 28, 2011 to Sep 28, 2026: 3,665 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.
MRCK34 adjusted close, 2011 to 2026
- R$100.96
- All time high, 2026
- R$100.97
- 52 week high, R$50.83 low
- 3,665
- Daily sessions since 2011
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2011 to 2026 series and minute bars.
MRCK34 key facts
- Merck & Co., Inc. (MRCK34) closed at R$99.02 on Sep 28, 2026 on B3.
- MRCK34's all time high close is R$100.96, set on Aug 26, 2026; its all time low close is R$5.62 on Dec 28, 2011.
- MRCK34's 52 week range is R$50.83 to R$100.97.
- MRCK34 returned +92.5% over the year to Sep 28, 2026 and +124.2% over five years.
- Over ten years MRCK34 returned +412%, +17.8% a year compounded.
- MRCK34's deepest drawdown was -42.2% from Jun 26, 2024 to May 14, 2025.
- DataCedar holds 3,665 daily sessions of MRCK34 history from Dec 28, 2011 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
MRCK34 price chart, 2011 to 2026
MRCK34 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +3.1% |
| 3 months | +20.5% |
| 6 months | +29.9% |
| Year to date | +37.3% |
| 1 year | +92.5% |
| 3 years | +60.7% |
| 5 years | +124.2% |
| 10 years | +412.4% |
| Since Dec 28, 2011 | +1,662% |
| Compound annual growth, 14.8 years | +21.5% |
MRCK34 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- R$100.96 on Aug 26, 2026
- All time low close
- R$5.62 on Dec 28, 2011
- 52 week high
- R$100.97 on Aug 26, 2026
- 52 week low
- R$50.83 on Sep 29, 2025
- Deepest drawdown
- -42.2% from Jun 26, 2024 to May 14, 2025, recovered Aug 13, 2026
- Best single session
- +12.5% on Jul 4, 2012
- Worst single session
- -11.3% on Nov 5, 2021
- Volatility, 1 year annualised
- 35.6%
- Sessions closing higher, 1 year
- 54%
- Growth of 1 since 2011
- 17.6×
- Best calendar year
- 2018, +53%
- Worst calendar year
- 2023, -7%
MRCK34 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. 2011 starts on Dec 28, 2011; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | R$71.49 | R$100.97 | R$66.90 | R$99.02 | +37.3% | 690.2K | 185 |
| 2025 | R$74.51 | R$76.88 | R$49.90 | R$72.11 | -1.4% | 1.6M | 250 |
| 2024 | R$61.95 | R$89.46 | R$61.95 | R$73.12 | +18.2% | 1.5M | 251 |
| 2023 | R$66.79 | R$70.99 | R$57.26 | R$61.88 | -7.4% | 2.3M | 248 |
| 2022 | R$47.54 | R$69.13 | R$40.98 | R$66.79 | +39.0% | 4M | 250 |
| 2021 | R$45.36 | R$56.59 | R$39.37 | R$48.03 | +5.9% | 3.8M | 247 |
| 2020 | R$38.67 | R$50.93 | R$35.41 | R$45.36 | +17.3% | 1.5M | 248 |
| 2019 | R$29.19 | R$38.93 | R$27.56 | R$38.67 | +36.1% | 879.2K | 248 |
| 2018 | R$18.51 | R$30.72 | R$17.11 | R$28.41 | +53.5% | 1.5M | 246 |
| 2017 | R$18.35 | R$21.32 | R$17.13 | R$18.51 | +0.9% | 870.4K | 254 |
| 2016 | R$19.69 | R$20.80 | R$17.24 | R$18.35 | -6.8% | 1.5M | 249 |
| 2015 | R$13.91 | R$19.69 | R$13.91 | R$19.69 | +42.9% | 1.7M | 246 |
| 2014 | R$10.22 | R$14.31 | R$10.22 | R$13.77 | +34.7% | 17.6M | 248 |
| 2013 | R$7.38 | R$10.26 | R$6.74 | R$10.22 | +38.6% | 839.9K | 248 |
| 2012 | R$5.63 | R$7.90 | R$5.61 | R$7.38 | +31.0% | 344K | 245 |
| 2011 | R$5.62 | R$5.63 | R$5.62 | R$5.63 | n/a | 32.8K | 2 |
MRCK34 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | R$99.02 | +3.5% |
| August 2026 | R$95.72 | +15.8% |
| July 2026 | R$82.68 | -0.8% |
| June 2026 | R$83.36 | +12.3% |
| May 2026 | R$74.22 | +9.6% |
| April 2026 | R$67.69 | -14.4% |
| March 2026 | R$79.06 | +2.8% |
| February 2026 | R$76.93 | +7.5% |
| January 2026 | R$71.55 | -0.8% |
| December 2025 | R$72.11 | +5.2% |
| November 2025 | R$68.55 | +20.2% |
| October 2025 | R$57.05 | +4.2% |
About the MRCK34 data
Daily bars. 3,665 sessions from Dec 28, 2011 to Sep 28, 2026, one row per B3 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 B3 trading days; minute timestamps are UTC. Prices are in BRL. 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 28, 2011, 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/MRCK34/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on B3
Common questions
MRCK34 share price history
