B3 · M1MC34 · stock
Marsh & McLennan Companies, Inc. (M1MC34) stock price history
Every B3 trading session of Marsh & McLennan Companies, Inc. from Feb 21, 2020 to Sep 28, 2026: 1,643 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.
M1MC34 adjusted close, 2020 to 2026
- R$85.95
- All time high, 2025
- R$69.24
- 52 week high, R$49.26 low
- 1,643
- Daily sessions since 2020
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2020 to 2026 series and minute bars.
M1MC34 key facts
- Marsh & McLennan Companies, Inc. (M1MC34) closed at R$55.24 on Sep 28, 2026 on B3.
- M1MC34's all time high close is R$85.95, set on Mar 31, 2025; its all time low close is R$29.54 on Feb 21, 2020.
- M1MC34's 52 week range is R$49.26 to R$69.24.
- M1MC34 returned -13.6% over the year to Sep 28, 2026 and +12.7% over five years.
- Since Feb 21, 2020 M1MC34 returned +87%, +9.9% a year compounded.
- M1MC34's deepest drawdown was -42.4% from Apr 1, 2025 to May 11, 2026.
- DataCedar holds 1,643 daily sessions of M1MC34 history from Feb 21, 2020 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
M1MC34 price chart, 2020 to 2026
M1MC34 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -12.3% |
| 3 months | +4.5% |
| 6 months | -3.5% |
| Year to date | -13.4% |
| 1 year | -13.6% |
| 3 years | -6.0% |
| 5 years | +12.7% |
| 10 years | n/a |
| Since Feb 21, 2020 | +87.0% |
| Compound annual growth, 6.6 years | +9.9% |
M1MC34 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- R$85.95 on Mar 31, 2025
- All time low close
- R$29.54 on Feb 21, 2020
- 52 week high
- R$69.24 on Oct 13, 2025
- 52 week low
- R$49.26 on Jun 3, 2026
- Deepest drawdown
- -42.4% from Apr 1, 2025 to May 11, 2026, not yet recovered
- Best single session
- +18.6% on May 11, 2020
- Worst single session
- -8.9% on Oct 16, 2025
- Volatility, 1 year annualised
- 28.1%
- Sessions closing higher, 1 year
- 26%
- Best calendar year
- 2021, +64%
- Worst calendar year
- 2025, -18%
M1MC34 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. 2020 starts on Feb 21, 2020; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | R$61.80 | R$63.15 | R$49.26 | R$55.24 | -13.4% | 493.4K | 185 |
| 2025 | R$78.22 | R$85.95 | R$58.48 | R$63.80 | -18.4% | 149.9K | 250 |
| 2024 | R$54.38 | R$86.80 | R$54.38 | R$78.22 | +43.8% | 98.2K | 251 |
| 2023 | R$52.31 | R$62.26 | R$49.97 | R$54.38 | +4.0% | 393.3K | 248 |
| 2022 | R$57.16 | R$57.16 | R$41.61 | R$52.31 | -8.5% | 445.2K | 250 |
| 2021 | R$34.83 | R$58.63 | R$34.81 | R$57.16 | +64.4% | 330.4K | 247 |
| 2020 | R$29.54 | R$38.29 | R$29.54 | R$34.77 | n/a | 37.6K | 212 |
M1MC34 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | R$55.24 | -10.8% |
| August 2026 | R$61.92 | +2.9% |
| July 2026 | R$60.17 | +11.2% |
| June 2026 | R$54.12 | +6.4% |
| May 2026 | R$50.88 | -2.9% |
| April 2026 | R$52.38 | -8.5% |
| March 2026 | R$57.26 | -0.7% |
| February 2026 | R$57.65 | -3.8% |
| January 2026 | R$59.92 | -6.1% |
| December 2025 | R$63.80 | +5.5% |
| November 2025 | R$60.49 | +1.7% |
| October 2025 | R$59.47 | -7.0% |
About the M1MC34 data
Daily bars. 1,643 sessions from Feb 21, 2020 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 Feb 21, 2020, 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/M1MC34/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on B3
Common questions
M1MC34 share price history
