B3 · CMIG4 · stock
Companhia Energética de Minas Gerais - CEMIG (CMIG4) stock price history
Every B3 trading session of Companhia Energética de Minas Gerais - CEMIG from Jan 3, 2000 to Sep 28, 2026: 6,712 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.
CMIG4 adjusted close, 2000 to 2026
- R$14,208
- All time high, 2003
- R$13.25
- 52 week high, R$9.46 low
- 6,712
- Daily sessions since 2000
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2000 to 2026 series and minute bars.
CMIG4 key facts
- Companhia Energética de Minas Gerais - CEMIG (CMIG4) closed at R$10.84 on Sep 28, 2026 on B3.
- CMIG4's all time high close is R$14,208, set on Aug 4, 2003; its all time low close is R$0.7839 on Jan 19, 2016.
- CMIG4's 52 week range is R$9.46 to R$13.25.
- CMIG4 returned +8.3% over the year to Sep 28, 2026 and +152.1% over five years.
- Over ten years CMIG4 returned +526%, +20.1% a year compounded.
- CMIG4's deepest drawdown was -100.0% from Aug 4, 2003 to Jan 19, 2016.
- DataCedar holds 6,712 daily sessions of CMIG4 history from Jan 3, 2000 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
CMIG4 price chart, 2000 to 2026
CMIG4 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +3.8% |
| 3 months | -0.5% |
| 6 months | -7.9% |
| Year to date | +3.2% |
| 1 year | +8.3% |
| 3 years | +68.5% |
| 5 years | +152.1% |
| 10 years | +526.0% |
| Since Jan 3, 2000 | -99.5% |
| Compound annual growth, 26.7 years | -17.9% |
CMIG4 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- R$14,208 on Aug 4, 2003
- All time low close
- R$0.7839 on Jan 19, 2016
- 52 week high
- R$13.25 on Apr 13, 2026
- 52 week low
- R$9.46 on Oct 9, 2025
- Deepest drawdown
- -100.0% from Aug 4, 2003 to Jan 19, 2016, not yet recovered
- Best single session
- +878.2% on Aug 4, 2003
- Worst single session
- -100.0% on May 9, 2006
- Volatility, 1 year annualised
- 23.4%
- Sessions closing higher, 1 year
- 48%
- Best calendar year
- 2018, +117%
- Worst calendar year
- 2006, -100%
CMIG4 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. 2000 starts on Jan 3, 2000; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | R$10.52 | R$13.25 | R$9.81 | R$10.84 | +3.2% | 2.7B | 185 |
| 2025 | R$8.93 | R$11.08 | R$8.03 | R$10.50 | +17.5% | 3B | 250 |
| 2024 | R$6.29 | R$9.93 | R$6.07 | R$8.94 | +42.2% | 3.5B | 251 |
| 2023 | R$5.43 | R$7.07 | R$5.00 | R$6.29 | +15.1% | 3.6B | 248 |
| 2022 | R$4.16 | R$6.08 | R$3.80 | R$5.46 | +32.0% | 3.6B | 250 |
| 2021 | R$3.81 | R$4.63 | R$2.88 | R$4.14 | +11.7% | 4.1B | 247 |
| 2020 | R$3.28 | R$3.85 | R$1.79 | R$3.71 | +13.2% | 5.5B | 248 |
| 2019 | R$3.12 | R$3.66 | R$2.84 | R$3.27 | +4.8% | 4.7B | 248 |
| 2018 | R$1.44 | R$3.12 | R$1.35 | R$3.12 | +116.8% | 5.9B | 246 |
| 2017 | R$1.54 | R$2.42 | R$1.04 | R$1.44 | -6.8% | 4B | 254 |
| 2016 | R$1.07 | R$1.92 | R$0.7492 | R$1.55 | +41.8% | 3.5B | 249 |
| 2015 | R$2.27 | R$2.86 | R$1.03 | R$1.09 | -51.9% | 2.3B | 246 |
| 2014 | R$1.93 | R$3.18 | R$1.71 | R$2.27 | +17.6% | 2.6B | 248 |
| 2013 | R$1.96 | R$2.43 | R$1.77 | R$1.93 | -1.0% | 2.4B | 248 |
| 2012 | R$2.09 | R$3.26 | R$1.81 | R$1.95 | -7.8% | 2B | 245 |
| 2011 | R$1.61 | R$2.13 | R$1.53 | R$2.11 | +33.4% | 1.3B | 249 |
| 2010 | R$1.55 | R$1.69 | R$1.32 | R$1.58 | +2.0% | 1.4B | 247 |
| 2009 | R$1.25 | R$1.70 | R$1.20 | R$1.55 | +24.3% | 1.6B | 248 |
| 2008 | R$1.30 | R$1.65 | R$1.07 | R$1.25 | -4.0% | 1.7B | 249 |
| 2007 | R$1.37 | R$1.69 | R$1.26 | R$1.30 | -5.5% | 684.8M | 245 |
| 2006 | R$5,197 | R$6,230 | R$1.00 | R$1.37 | -100.0% | 148M | 258 |
| 2005 | R$3,551 | R$5,246 | R$2,898 | R$5,191 | +46.4% | 375M | 249 |
| 2004 | R$2,883 | R$3,825 | R$2,001 | R$3,547 | +23.0% | 457.7M | 261 |
| 2003 | R$1,445 | R$2,883 | R$1,169 | R$2,883 | +99.4% | 569.3M | 261 |
| 2002 | R$1,803 | R$2,169 | R$1,033 | R$1,445 | -19.8% | 400.5M | 261 |
| 2001 | R$1,541 | R$2,006 | R$1,148 | R$1,803 | +17.0% | 355M | 261 |
| 2000 | R$2,213 | R$2,213 | R$1,246 | R$1,541 | n/a | 421.7M | 260 |
CMIG4 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | R$10.84 | +1.9% |
| August 2026 | R$10.63 | -5.6% |
| July 2026 | R$11.27 | +4.3% |
| June 2026 | R$10.80 | +3.1% |
| May 2026 | R$10.48 | -12.5% |
| April 2026 | R$11.98 | -0.6% |
| March 2026 | R$12.05 | +6.5% |
| February 2026 | R$11.32 | +5.1% |
| January 2026 | R$10.77 | +2.5% |
| December 2025 | R$10.50 | +0.8% |
| November 2025 | R$10.42 | +1.4% |
| October 2025 | R$10.27 | +1.7% |
About the CMIG4 data
Daily bars. 6,712 sessions from Jan 3, 2000 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 Jan 3, 2000, 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/CMIG4/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on B3
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Common questions
CMIG4 share price history
