Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX)
NASDAQ · Mutual Fund · Delayed Price · Currency is USD
526.22
-8.07 (-1.51%)
Mar 20, 2026, 4:00 PM EST
VIIIX Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change |
|---|---|---|---|---|---|---|
| Mar 20, 2026 | 526.22 | 526.22 | 526.22 | 526.22 | - | -1.51% |
| Mar 19, 2026 | 534.29 | 534.29 | 534.29 | 534.29 | 534.29 | -0.27% |
| Mar 18, 2026 | 535.73 | 535.73 | 535.73 | 535.73 | 535.73 | -1.36% |
| Mar 17, 2026 | 543.12 | 543.12 | 543.12 | 543.12 | 543.12 | 0.25% |
| Mar 16, 2026 | 541.75 | 541.75 | 541.75 | 541.75 | 541.75 | 1.02% |
| Mar 13, 2026 | 536.26 | 536.26 | 536.26 | 536.26 | 536.26 | -0.59% |
| Mar 12, 2026 | 539.46 | 539.46 | 539.46 | 539.46 | 539.46 | -1.52% |
| Mar 11, 2026 | 547.78 | 547.78 | 547.78 | 547.78 | 547.78 | -0.08% |
| Mar 10, 2026 | 548.22 | 548.22 | 548.22 | 548.22 | 548.22 | -0.20% |
| Mar 9, 2026 | 549.33 | 549.33 | 549.33 | 549.33 | 549.33 | 0.84% |
| Mar 6, 2026 | 544.76 | 544.76 | 544.76 | 544.76 | 544.76 | -1.31% |
| Mar 5, 2026 | 552.01 | 552.01 | 552.01 | 552.01 | 552.01 | -0.56% |
| Mar 4, 2026 | 555.12 | 555.12 | 555.12 | 555.12 | 555.12 | 0.78% |
| Mar 3, 2026 | 550.84 | 550.84 | 550.84 | 550.84 | 550.84 | -0.94% |
| Mar 2, 2026 | 556.07 | 556.07 | 556.07 | 556.07 | 556.07 | 0.05% |
| Feb 27, 2026 | 555.80 | 555.80 | 555.80 | 555.80 | 555.80 | -0.42% |
| Feb 26, 2026 | 558.17 | 558.17 | 558.17 | 558.17 | 558.17 | -0.54% |
| Feb 25, 2026 | 561.18 | 561.18 | 561.18 | 561.18 | 561.18 | 0.82% |
| Feb 24, 2026 | 556.63 | 556.63 | 556.63 | 556.63 | 556.63 | 0.77% |
| Feb 23, 2026 | 552.37 | 552.37 | 552.37 | 552.37 | 552.37 | -1.04% |
| Feb 20, 2026 | 558.15 | 558.15 | 558.15 | 558.15 | 558.15 | 0.70% |
| Feb 19, 2026 | 554.29 | 554.29 | 554.29 | 554.29 | 554.29 | -0.27% |
| Feb 18, 2026 | 555.78 | 555.78 | 555.78 | 555.78 | 555.78 | 0.56% |
| Feb 17, 2026 | 552.68 | 552.68 | 552.68 | 552.68 | 552.68 | 0.12% |
| Feb 13, 2026 | 552.04 | 552.04 | 552.04 | 552.04 | 552.04 | 0.06% |
| Feb 12, 2026 | 551.69 | 551.69 | 551.69 | 551.69 | 551.69 | -1.56% |
| Feb 11, 2026 | 560.42 | 560.42 | 560.42 | 560.42 | 560.42 | - |
| Feb 10, 2026 | 560.43 | 560.43 | 560.43 | 560.43 | 560.43 | -0.32% |
| Feb 9, 2026 | 562.25 | 562.25 | 562.25 | 562.25 | 562.25 | 0.48% |
| Feb 6, 2026 | 559.58 | 559.58 | 559.58 | 559.58 | 559.58 | 1.97% |
| Feb 5, 2026 | 548.75 | 548.75 | 548.75 | 548.75 | 548.75 | -1.22% |
| Feb 4, 2026 | 555.55 | 555.55 | 555.55 | 555.55 | 555.55 | -0.51% |
| Feb 3, 2026 | 558.38 | 558.38 | 558.38 | 558.38 | 558.38 | -0.84% |
| Feb 2, 2026 | 563.11 | 563.11 | 563.11 | 563.11 | 563.11 | 0.54% |
| Jan 30, 2026 | 560.06 | 560.06 | 560.06 | 560.06 | 560.06 | -0.42% |
| Jan 29, 2026 | 562.45 | 562.45 | 562.45 | 562.45 | 562.45 | -0.13% |
| Jan 28, 2026 | 563.17 | 563.17 | 563.17 | 563.17 | 563.17 | -0.01% |
| Jan 27, 2026 | 563.21 | 563.21 | 563.21 | 563.21 | 563.21 | 0.41% |
| Jan 26, 2026 | 560.92 | 560.92 | 560.92 | 560.92 | 560.92 | 0.50% |
| Jan 23, 2026 | 558.12 | 558.12 | 558.12 | 558.12 | 558.12 | 0.04% |
| Jan 22, 2026 | 557.89 | 557.89 | 557.89 | 557.89 | 557.89 | 0.55% |
| Jan 21, 2026 | 554.84 | 554.84 | 554.84 | 554.84 | 554.84 | 1.16% |
| Jan 20, 2026 | 548.48 | 548.48 | 548.48 | 548.48 | 548.48 | -2.06% |
| Jan 16, 2026 | 560.01 | 560.01 | 560.01 | 560.01 | 560.01 | -0.06% |
| Jan 15, 2026 | 560.33 | 560.33 | 560.33 | 560.33 | 560.33 | 0.26% |
| Jan 14, 2026 | 558.87 | 558.87 | 558.87 | 558.87 | 558.87 | -0.53% |
| Jan 13, 2026 | 561.86 | 561.86 | 561.86 | 561.86 | 561.86 | -0.19% |
| Jan 12, 2026 | 562.94 | 562.94 | 562.94 | 562.94 | 562.94 | 0.17% |
| Jan 9, 2026 | 562.01 | 562.01 | 562.01 | 562.01 | 562.01 | 0.65% |
| Jan 8, 2026 | 558.37 | 558.37 | 558.37 | 558.37 | 558.37 | 0.01% |