Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX) NASDAQ
Currency In USD
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Currency In USD
If you invested $1000 in Vanguard Institutional Index Fund (VIIIX) 10 years ago, it would be worth $4,232.96 as of June 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,889.4, while $1000 invested 1 year ago would be worth $1,255.07. This corresponds to total returns of 323.3%, 88.94%, 25.51%, respectively, with annualized returns of 15.51%, 13.56%, 25.51%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| June 22, 2026 | 602.01 | 602.01 | 602.01 | 602.01 | 602.01 | 0 |
| June 18, 2026 | 595.54 | 595.54 | 595.54 | 595.54 | 595.54 | 0 |
| June 17, 2026 | 602.86 | 602.86 | 602.86 | 602.86 | 602.86 | 0 |
| June 16, 2026 | 606.29 | 606.29 | 606.29 | 606.29 | 606.29 | 0 |
| June 15, 2026 | 596.29 | 596.29 | 596.29 | 596.29 | 596.29 | 0 |
| June 12, 2026 | 593.28 | 593.28 | 593.28 | 593.28 | 593.28 | 0 |
| June 11, 2026 | 583.06 | 583.06 | 583.06 | 583.06 | 583.06 | 0 |
| June 10, 2026 | 592.65 | 592.65 | 592.65 | 592.65 | 592.65 | 0 |
| June 09, 2026 | 594.16 | 594.16 | 594.16 | 594.16 | 594.16 | 0 |
| June 08, 2026 | 592.37 | 592.37 | 592.37 | 592.37 | 592.37 | 0 |
| June 05, 2026 | 608.38 | 608.38 | 608.38 | 608.38 | 608.38 | 0 |
| June 04, 2026 | 605.81 | 605.81 | 605.81 | 605.81 | 605.81 | 0 |
| June 03, 2026 | 610.3 | 610.3 | 610.3 | 610.3 | 610.3 | 0 |
| June 02, 2026 | 609.49 | 609.49 | 609.49 | 609.49 | 609.49 | 0 |
| June 01, 2026 | 607.85 | 607.85 | 607.85 | 607.85 | 607.85 | 0 |
| May 29, 2026 | 606.5 | 606.5 | 606.5 | 606.5 | 606.5 | 0 |
| May 28, 2026 | 603.02 | 603.02 | 603.02 | 603.02 | 603.02 | 0 |
| May 27, 2026 | 602.92 | 602.92 | 602.92 | 602.92 | 602.92 | 0 |
| May 26, 2026 | 599.22 | 599.22 | 599.22 | 599.22 | 599.22 | 0 |
| May 22, 2026 | 596.96 | 596.96 | 596.96 | 596.96 | 596.96 | 0 |
| May 21, 2026 | 595.87 | 595.87 | 595.87 | 595.87 | 595.87 | 0 |
| May 20, 2026 | 589.49 | 589.49 | 589.49 | 589.49 | 589.49 | 0 |
| May 19, 2026 | 593.42 | 593.42 | 593.42 | 593.42 | 593.42 | 0 |
| May 18, 2026 | 593.82 | 593.82 | 593.82 | 593.82 | 593.82 | 0 |
| May 15, 2026 | 601.14 | 601.14 | 601.14 | 601.14 | 601.14 | 0 |
| May 14, 2026 | 596.56 | 596.56 | 596.56 | 596.56 | 596.56 | 0 |
| May 13, 2026 | 593.07 | 593.07 | 593.07 | 593.07 | 593.07 | 0 |
| May 12, 2026 | 594 | 594 | 594 | 594 | 594 | 0 |
| May 11, 2026 | 592.83 | 592.83 | 592.83 | 592.83 | 592.83 | 0 |
| May 08, 2026 | 587.79 | 587.79 | 587.79 | 587.79 | 587.79 | 0 |
| May 07, 2026 | 590.03 | 590.03 | 590.03 | 590.03 | 590.03 | 0 |
| May 06, 2026 | 581.55 | 581.55 | 581.55 | 581.55 | 581.55 | 0 |
| May 05, 2026 | 576.85 | 576.85 | 576.85 | 576.85 | 576.85 | 0 |
| May 04, 2026 | 579.17 | 579.17 | 579.17 | 579.17 | 579.17 | 0 |
| May 01, 2026 | 577.46 | 577.46 | 577.46 | 577.46 | 577.46 | 0 |
| April 30, 2026 | 571.59 | 571.59 | 571.59 | 571.59 | 571.59 | 0 |
| April 29, 2026 | 571.82 | 571.82 | 571.82 | 571.82 | 571.82 | 0 |
| April 28, 2026 | 574.63 | 574.63 | 574.63 | 574.63 | 574.63 | 0 |
| April 27, 2026 | 573.92 | 573.92 | 573.92 | 573.92 | 573.92 | 0 |
| April 24, 2026 | 569.35 | 569.35 | 569.35 | 569.35 | 569.35 | 0 |
| April 23, 2026 | 571.71 | 571.71 | 571.71 | 571.71 | 571.71 | 0 |
| April 22, 2026 | 565.78 | 565.78 | 565.78 | 565.78 | 565.78 | 0 |
| April 21, 2026 | 569.4 | 569.4 | 569.4 | 569.4 | 569.4 | 0 |
| April 20, 2026 | 570.74 | 570.74 | 570.74 | 570.74 | 570.74 | 0 |
| April 17, 2026 | 563.95 | 563.95 | 563.95 | 563.95 | 563.95 | 0 |
| April 16, 2026 | 562.47 | 562.47 | 562.47 | 562.47 | 562.47 | 0 |
| April 15, 2026 | 557.98 | 557.98 | 557.98 | 557.98 | 557.98 | 0 |
| April 14, 2026 | 551.47 | 551.47 | 551.47 | 551.47 | 551.47 | 0 |
| April 13, 2026 | 545.91 | 545.91 | 545.91 | 545.91 | 545.91 | 0 |
| April 10, 2026 | 546.48 | 546.48 | 546.48 | 546.48 | 546.48 | 0 |
| April 09, 2026 | 543.09 | 543.09 | 543.09 | 543.09 | 543.09 | 0 |
| April 08, 2026 | 529.81 | 529.81 | 529.81 | 529.81 | 529.81 | 0 |
| April 07, 2026 | 529.81 | 529.81 | 529.81 | 529.81 | 529.81 | 0 |
| April 06, 2026 | 527.03 | 527.03 | 529.4 | 527.03 | 527.03 | 0 |
| April 02, 2026 | 527.03 | 527.03 | 527.03 | 527.03 | 527.03 | 0 |
| April 01, 2026 | 522.63 | 522.63 | 526.4 | 522.63 | 522.63 | 0 |
| March 31, 2026 | 507.8 | 507.8 | 522.63 | 507.8 | 507.8 | 0 |
| March 30, 2026 | 509.81 | 509.81 | 507.8 | 509.81 | 509.81 | 0 |
| March 27, 2026 | 518.46 | 518.46 | 509.81 | 518.46 | 518.46 | 0 |
| March 26, 2026 | 527.64 | 527.64 | 518.46 | 527.64 | 527.64 | 0 |