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Video: Compound Annual Growth Rate (CAGR) Definition
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 |
| Date |
Open |
High |
Low |
Close |
Volume |
| 07/02/2026 |
$5.53 |
$5.70 |
$4.95 |
$5.10 |
41.30K | | 07/06/2026 |
$5.16 |
$5.25 |
$4.86 |
$5.05 |
22.50K | | 07/07/2026 |
$4.99 |
$5.10 |
$4.54 |
$4.73 |
23.80K | | 07/08/2026 |
$4.68 |
$4.68 |
$4.28 |
$4.56 |
17.00K | | 07/09/2026 |
$4.51 |
$4.74 |
$4.43 |
$4.63 |
25.60K |
 |
| Rubicon Project provides technology solution to automate the purchase and sale of digital advertising inventory for buyers and sellers. Co.'s platform features applications and services for digital advertising inventory sellers, including websites, mobile applications and other digital media properties, and their representatives, to sell their digital advertising inventory; applications and services for buyers, including advertisers, agencies, agency trading desks, and demand side platforms, to buy digital advertising inventory; and a marketplace over which such transactions are executed. | |
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Rubico (RUBI) has the following price history information. Looking back at RUBI historical stock prices for the last five trading days, on July 02, 2026, RUBI opened at $5.53, traded as high as $5.70 and as low as $4.95, and closed at $5.10. Trading volume was a total of 41.30K shares. On July 06, 2026, RUBI opened at $5.16, traded as high as $5.25 and as low as $4.86, and closed at $5.05. Trading volume was a total of 22.50K shares. On July 07, 2026, RUBI opened at $4.99, traded as high as $5.10 and as low as $4.54, and closed at $4.73. Trading volume was a total of 23.80K shares. On July 08, 2026, RUBI opened at $4.68, traded as high as $4.68 and as low as $4.28, and closed at $4.56. Trading volume was a total of 17.00K shares. On July 09, 2026, RUBI opened at $4.51, traded as high as $4.74 and as low as $4.43, and closed at $4.63. Trading volume was a total of 25.60K shares.
RUBI Historical Stock Prices By Date:

Below, we examine the compound annual growth rate — CAGR for short — of an investment into Rubico shares, starting with a $10,000 purchase of RUBI, and working forward through the historical stock price information to today.
Growth of $10,000.00
Without Dividends Reinvested
|
| Start date: |
08/04/2025 |
|
| End date: |
07/09/2026 |
|
| Start price/share: |
$199,220.00 |
|
| End price/share: |
$4.63 |
|
| Dividends collected/share: |
$0.00 |
|
| Total return: |
-100.00% |
|
| Annualized Gain: |
-107.67% |
|
| Starting investment: |
$10,000.00 |
|
| Ending investment: |
$0.00 |
|
| Years: |
0.93 |
|
|
 |
| Date |
Close |
| 07/02/2026 | $5.10 | | 07/06/2026 | $5.05 | | 07/07/2026 | $4.73 | | 07/08/2026 | $4.56 | | 07/09/2026 | $4.63 |
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