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Video: Compound Annual Growth Rate (CAGR) Definition
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 |
| Date |
Open |
High |
Low |
Close |
Volume |
| 09/04/2026 |
$2.70 |
$2.74 |
$2.51 |
$2.73 |
14.90K | | 09/08/2026 |
$2.75 |
$2.75 |
$2.48 |
$2.50 |
42.30K | | 09/09/2026 |
$2.75 |
$2.78 |
$2.35 |
$2.57 |
404.10K | | 09/10/2026 |
$2.55 |
$2.58 |
$2.36 |
$2.50 |
68.80K | | 09/11/2026 |
$2.41 |
$2.54 |
$2.20 |
$2.22 |
69.30K | |
 |

Serina Therapeutics (SER) has the following price history information. Looking back at SER historical stock prices for the last five trading days, on September 04, 2026, SER opened at $2.70, traded as high as $2.74 and as low as $2.51, and closed at $2.73. Trading volume was a total of 14.90K shares. On September 08, 2026, SER opened at $2.75, traded as high as $2.75 and as low as $2.48, and closed at $2.50. Trading volume was a total of 42.30K shares. On September 09, 2026, SER opened at $2.75, traded as high as $2.78 and as low as $2.35, and closed at $2.57. Trading volume was a total of 404.10K shares. On September 10, 2026, SER opened at $2.55, traded as high as $2.58 and as low as $2.36, and closed at $2.50. Trading volume was a total of 68.80K shares. On September 11, 2026, SER opened at $2.41, traded as high as $2.54 and as low as $2.20, and closed at $2.22. Trading volume was a total of 69.30K shares.
SER Historical Stock Prices By Date:

Below, we examine the compound annual growth rate — CAGR for short — of an investment into Serina Therapeutics shares, starting with a $10,000 purchase of SER, and working forward through the historical stock price information to today.
Growth of $10,000.00
Without Dividends Reinvested
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| Start date: |
11/30/2018 |
|
| End date: |
09/11/2026 |
|
| Start price/share: |
$5.40 |
|
| End price/share: |
$2.22 |
|
| Dividends collected/share: |
$0.00 |
|
| Total return: |
-58.89% |
|
| Average Annual Total Return: |
-10.79% |
|
| Starting investment: |
$10,000.00 |
|
| Ending investment: |
$4,111.88 |
|
| Years: |
7.78 |
|
|
 |
| Date |
Close |
| 09/04/2026 | $2.73 | | 09/08/2026 | $2.50 | | 09/09/2026 | $2.57 | | 09/10/2026 | $2.50 | | 09/11/2026 | $2.22 |
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