Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX) NASDAQ
Currency In USD
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VIIIX Historical Return
If you invested $1000 in Vanguard Institutional Index Fund (VIIIX) 10 years ago, it would be worth $4,217 as of October 21, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,807.85, while $1000 invested 1 year ago would be worth $1,151.66. This corresponds to total returns of 321.7%, 80.79%, 15.17%, respectively, with annualized returns of 15.47%, 12.57%, 15.17%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
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VIIIX Historical Data
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| October 21, 2026 | 617.58 | 617.58 | 617.58 | 617.58 | 617.58 | 0 |
| October 20, 2026 | 615.82 | 615.82 | 615.82 | 615.82 | 615.82 | 0 |
| October 19, 2026 | 613.32 | 613.32 | 613.32 | 613.32 | 613.32 | 0 |
| October 16, 2026 | 620.09 | 620.09 | 620.09 | 620.09 | 620.09 | 0 |
| October 15, 2026 | 618.04 | 618.04 | 618.04 | 618.04 | 618.04 | 0 |
| October 14, 2026 | 624.96 | 624.96 | 624.96 | 624.96 | 624.96 | 0 |
| October 13, 2026 | 625.09 | 625.09 | 625.09 | 625.09 | 625.09 | 0 |
| October 12, 2026 | 625.43 | 625.43 | 625.43 | 625.43 | 625.43 | 0 |
| October 09, 2026 | 621.66 | 621.66 | 621.66 | 621.66 | 621.66 | 0 |
| October 08, 2026 | 624.57 | 624.57 | 624.57 | 624.57 | 624.57 | 0 |
| October 07, 2026 | 625.93 | 625.93 | 625.93 | 625.93 | 625.93 | 0 |
| October 06, 2026 | 622.29 | 622.29 | 622.29 | 622.29 | 622.29 | 0 |
| October 05, 2026 | 618.18 | 618.18 | 618.18 | 618.18 | 618.18 | 0 |
| October 02, 2026 | 613.62 | 613.62 | 613.62 | 613.62 | 613.62 | 0 |
| October 01, 2026 | 612.41 | 612.41 | 612.41 | 612.41 | 612.41 | 0 |
| September 30, 2026 | 613.9 | 613.9 | 613.9 | 613.9 | 613.9 | 0 |
| September 29, 2026 | 614.93 | 614.93 | 614.93 | 614.93 | 614.93 | 0 |
| September 28, 2026 | 619.71 | 619.71 | 619.71 | 619.71 | 619.71 | 0 |
| September 25, 2026 | 616.56 | 616.56 | 616.56 | 616.56 | 616.56 | 0 |
| September 24, 2026 | 616.7 | 616.7 | 616.7 | 616.7 | 616.7 | 0 |
| September 23, 2026 | 623 | 623 | 623 | 623 | 623 | 0 |
| September 22, 2026 | 623.01 | 623.01 | 623.01 | 623.01 | 623.01 | 0 |
| September 21, 2026 | 613.79 | 613.79 | 613.79 | 613.79 | 613.79 | 0 |
| September 18, 2026 | 612.77 | 612.77 | 612.77 | 612.77 | 612.77 | 0 |
| September 17, 2026 | 605.85 | 605.85 | 605.85 | 605.85 | 605.85 | 0 |
| September 16, 2026 | 608.55 | 608.55 | 608.55 | 608.55 | 608.55 | 0 |
| September 15, 2026 | 611.2 | 611.2 | 611.2 | 611.2 | 611.2 | 0 |
| September 11, 2026 | 608.88 | 608.88 | 608.88 | 608.88 | 608.88 | 0 |
| September 10, 2026 | 612.39 | 612.39 | 612.39 | 612.39 | 612.39 | 0 |
| September 09, 2026 | 615.35 | 615.35 | 615.35 | 615.35 | 615.35 | 0 |
| September 08, 2026 | 618.95 | 618.95 | 618.95 | 618.95 | 618.95 | 0 |
| September 04, 2026 | 621.19 | 621.19 | 621.19 | 621.19 | 621.19 | 0 |
| September 03, 2026 | 614.64 | 614.64 | 614.64 | 614.64 | 614.64 | 0 |
| September 02, 2026 | 611.82 | 611.82 | 611.82 | 611.82 | 611.82 | 0 |
| September 01, 2026 | 616.14 | 616.14 | 616.14 | 616.14 | 616.14 | 0 |
| August 31, 2026 | 618.17 | 618.17 | 618.17 | 618.17 | 618.17 | 0 |
| August 28, 2026 | 619.69 | 619.69 | 619.69 | 619.69 | 619.69 | 0 |
| August 27, 2026 | 615.26 | 615.26 | 615.26 | 615.26 | 615.26 | 0 |
| August 26, 2026 | 615.38 | 615.38 | 615.38 | 615.38 | 615.38 | 0 |
| August 25, 2026 | 613.39 | 613.39 | 613.39 | 613.39 | 613.39 | 0 |
| August 24, 2026 | 615.1 | 615.1 | 615.1 | 615.1 | 615.1 | 0 |
| August 21, 2026 | 612.41 | 612.41 | 612.41 | 612.41 | 612.41 | 0 |
| August 20, 2026 | 617.69 | 617.69 | 617.69 | 617.69 | 617.69 | 0 |
| August 19, 2026 | 616.34 | 616.34 | 616.34 | 616.34 | 616.34 | 0 |
| August 18, 2026 | 620.6 | 620.6 | 620.6 | 620.6 | 620.6 | 0 |
| August 17, 2026 | 623.78 | 623.78 | 623.78 | 623.78 | 623.78 | 0 |
| August 14, 2026 | 624.77 | 624.77 | 624.77 | 624.77 | 624.77 | 0 |
| August 13, 2026 | 620.71 | 620.71 | 620.71 | 620.71 | 620.71 | 0 |
| August 12, 2026 | 621.04 | 619.06 | 619.06 | 621.04 | 619.06 | 0 |
| August 11, 2026 | 621.04 | 621.04 | 621.04 | 621.04 | 621.04 | 0 |
| August 10, 2026 | 621.34 | 621.34 | 621.34 | 621.34 | 621.34 | 0 |
| August 07, 2026 | 617.49 | 617.49 | 617.49 | 617.49 | 617.49 | 0 |
| August 06, 2026 | 618.58 | 618.58 | 618.58 | 618.58 | 618.58 | 0 |
| August 05, 2026 | 619.62 | 619.62 | 619.62 | 619.62 | 619.62 | 0 |
| August 04, 2026 | 608.72 | 608.72 | 608.72 | 608.72 | 608.72 | 0 |
| August 03, 2026 | 599.81 | 599.81 | 599.81 | 599.81 | 599.81 | 0 |
| July 31, 2026 | 595.61 | 595.61 | 595.61 | 595.61 | 595.61 | 0 |
| July 30, 2026 | 585.88 | 585.88 | 585.88 | 585.88 | 585.88 | 0 |
| July 29, 2026 | 594.9 | 594.9 | 594.9 | 594.9 | 594.9 | 0 |
| July 28, 2026 | 593.64 | 593.64 | 593.64 | 593.64 | 593.64 | 0 |
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