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Video: Compound Annual Growth Rate (CAGR) Definition
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 |
Date |
Open |
High |
Low |
Close |
Volume |
05/15/2025 |
$90.22 |
$91.86 |
$90.19 |
$91.63 |
97.30K | 05/16/2025 |
$91.49 |
$92.66 |
$91.40 |
$92.60 |
150.20K | 05/19/2025 |
$92.20 |
$93.64 |
$92.20 |
$93.48 |
83.90K | 05/20/2025 |
$93.21 |
$94.00 |
$92.02 |
$92.10 |
134.40K | 05/21/2025 |
$91.35 |
$91.94 |
$90.31 |
$90.49 |
105.10K |
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MGE Energy, Inc. is a public utility holding company. Co.'s segments include Regulated electric utility operations; Regulated gas utility operations; Nonregulated energy operations, and Transmission investments. The Regulated electric utility operations segment is engaged in generating, purchasing, and distributing electricity through Madison Gas and Electric Co. (MGE). The Regulated gas utility operations segment is engaged in purchasing and distributing natural gas through MGE. The Nonregulated energy operations segment owns and leases electric generating capacity that assists MGE through MGE Energy's wholly owned subsidiaries MGE Power Elm Road and MGE Power West Campus. | |
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MGE Energy (MGEE) has the following price history information. Looking back at MGEE historical stock prices for the last five trading days, on May 15, 2025, MGEE opened at $90.22, traded as high as $91.86 and as low as $90.19, and closed at $91.63. Trading volume was a total of 97.30K shares. On May 16, 2025, MGEE opened at $91.49, traded as high as $92.66 and as low as $91.40, and closed at $92.60. Trading volume was a total of 150.20K shares. On May 19, 2025, MGEE opened at $92.20, traded as high as $93.64 and as low as $92.20, and closed at $93.48. Trading volume was a total of 83.90K shares. On May 20, 2025, MGEE opened at $93.21, traded as high as $94.00 and as low as $92.02, and closed at $92.10. Trading volume was a total of 134.40K shares. On May 21, 2025, MGEE opened at $91.35, traded as high as $91.94 and as low as $90.31, and closed at $90.49. Trading volume was a total of 105.10K shares.
MGEE Historical Stock Prices By Date:

Below, we examine the compound annual growth rate — CAGR for short — of an investment into MGE Energy shares, starting with a $10,000 purchase of MGEE, and working forward through the historical stock price information to today.
Growth of $10,000.00
With Dividends Reinvested
|
Start date: |
05/26/2015 |
|
End date: |
05/21/2025 |
|
Start price/share: |
$38.81 |
|
End price/share: |
$90.49 |
|
Starting shares: |
257.67 |
|
Ending shares: |
320.25 |
|
Dividends reinvested/share: |
$14.48 |
|
Total return: |
189.79% |
|
Average Annual Total Return: |
11.23% |
|
Starting investment: |
$10,000.00 |
|
Ending investment: |
$28,971.17 |
|
Years: |
9.99 |
|
|
Growth of $10,000.00
Without Dividends Reinvested
|
Start date: |
05/26/2015 |
|
End date: |
05/21/2025 |
|
Start price/share: |
$38.81 |
|
End price/share: |
$90.49 |
|
Dividends collected/share: |
$14.48 |
|
Total return: |
170.46% |
|
Average Annual Total Return: |
10.47% |
|
Starting investment: |
$10,000.00 |
|
Ending investment: |
$27,052.45 |
|
Years: |
9.99 |
|
|
 |
Date |
Close |
05/15/2025 | $91.63 | 05/16/2025 | $92.60 | 05/19/2025 | $93.48 | 05/20/2025 | $92.10 | 05/21/2025 | $90.49 |
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