Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX)
NASDAQ · Mutual Fund · Delayed Price · Currency is USD
577.46
+5.87 (1.03%)
May 1, 2026, 8:10 AM EST
VIIIX Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change |
|---|---|---|---|---|---|---|
| Apr 30, 2026 | 577.46 | 577.46 | 577.46 | 577.46 | - | 1.03% |
| Apr 29, 2026 | 571.59 | 571.59 | 571.59 | 571.59 | 571.59 | -0.04% |
| Apr 28, 2026 | 571.82 | 571.82 | 571.82 | 571.82 | 571.82 | -0.49% |
| Apr 27, 2026 | 574.63 | 574.63 | 574.63 | 574.63 | 574.63 | 0.12% |
| Apr 24, 2026 | 573.92 | 573.92 | 573.92 | 573.92 | 573.92 | 0.80% |
| Apr 23, 2026 | 569.35 | 569.35 | 569.35 | 569.35 | 569.35 | -0.41% |
| Apr 22, 2026 | 571.71 | 571.71 | 571.71 | 571.71 | 571.71 | 1.05% |
| Apr 21, 2026 | 565.78 | 565.78 | 565.78 | 565.78 | 565.78 | -0.64% |
| Apr 20, 2026 | 569.40 | 569.40 | 569.40 | 569.40 | 569.40 | -0.23% |
| Apr 17, 2026 | 570.74 | 570.74 | 570.74 | 570.74 | 570.74 | 1.20% |
| Apr 16, 2026 | 563.95 | 563.95 | 563.95 | 563.95 | 563.95 | 0.26% |
| Apr 15, 2026 | 562.47 | 562.47 | 562.47 | 562.47 | 562.47 | 0.80% |
| Apr 14, 2026 | 557.98 | 557.98 | 557.98 | 557.98 | 557.98 | 1.18% |
| Apr 13, 2026 | 551.47 | 551.47 | 551.47 | 551.47 | 551.47 | 1.02% |
| Apr 10, 2026 | 545.91 | 545.91 | 545.91 | 545.91 | 545.91 | -0.10% |
| Apr 9, 2026 | 546.48 | 546.48 | 546.48 | 546.48 | 546.48 | 0.62% |
| Apr 8, 2026 | 543.09 | 543.09 | 543.09 | 543.09 | 543.09 | 2.51% |
| Apr 7, 2026 | 529.81 | 529.81 | 529.81 | 529.81 | 529.81 | 0.08% |
| Apr 6, 2026 | 529.40 | 529.40 | 529.40 | 529.40 | 529.40 | 0.45% |
| Apr 2, 2026 | 527.03 | 527.03 | 527.03 | 527.03 | 527.03 | 0.12% |
| Apr 1, 2026 | 526.40 | 526.40 | 526.40 | 526.40 | 526.40 | 0.72% |
| Mar 31, 2026 | 522.63 | 522.63 | 522.63 | 522.63 | 522.63 | 2.92% |
| Mar 30, 2026 | 507.80 | 507.80 | 507.80 | 507.80 | 507.80 | -0.39% |
| Mar 27, 2026 | 509.81 | 509.81 | 509.81 | 509.81 | 509.81 | -1.67% |
| Mar 26, 2026 | 518.46 | 518.46 | 518.46 | 518.46 | 518.46 | -1.74% |
| Mar 25, 2026 | 527.64 | 527.64 | 527.64 | 527.64 | 527.64 | 0.54% |
| Mar 24, 2026 | 524.78 | 524.78 | 524.78 | 524.78 | 524.78 | -1.41% |
| Mar 23, 2026 | 532.27 | 532.27 | 532.27 | 532.27 | 526.75 | 1.15% |
| Mar 20, 2026 | 526.22 | 526.22 | 526.22 | 526.22 | 520.76 | -1.51% |
| Mar 19, 2026 | 534.29 | 534.29 | 534.29 | 534.29 | 528.75 | -0.27% |
| Mar 18, 2026 | 535.73 | 535.73 | 535.73 | 535.73 | 530.17 | -1.36% |
| Mar 17, 2026 | 543.12 | 543.12 | 543.12 | 543.12 | 537.48 | 0.25% |
| Mar 16, 2026 | 541.75 | 541.75 | 541.75 | 541.75 | 536.13 | 1.02% |
| Mar 13, 2026 | 536.26 | 536.26 | 536.26 | 536.26 | 530.70 | -0.59% |
| Mar 12, 2026 | 539.46 | 539.46 | 539.46 | 539.46 | 533.86 | -1.52% |
| Mar 11, 2026 | 547.78 | 547.78 | 547.78 | 547.78 | 542.10 | -0.08% |
| Mar 10, 2026 | 548.22 | 548.22 | 548.22 | 548.22 | 542.53 | -0.20% |
| Mar 9, 2026 | 549.33 | 549.33 | 549.33 | 549.33 | 543.63 | 0.84% |
| Mar 6, 2026 | 544.76 | 544.76 | 544.76 | 544.76 | 539.11 | -1.31% |
| Mar 5, 2026 | 552.01 | 552.01 | 552.01 | 552.01 | 546.28 | -0.56% |
| Mar 4, 2026 | 555.12 | 555.12 | 555.12 | 555.12 | 549.36 | 0.78% |
| Mar 3, 2026 | 550.84 | 550.84 | 550.84 | 550.84 | 545.12 | -0.94% |
| Mar 2, 2026 | 556.07 | 556.07 | 556.07 | 556.07 | 550.30 | 0.05% |
| Feb 27, 2026 | 555.80 | 555.80 | 555.80 | 555.80 | 550.03 | -0.42% |
| Feb 26, 2026 | 558.17 | 558.17 | 558.17 | 558.17 | 552.38 | -0.54% |
| Feb 25, 2026 | 561.18 | 561.18 | 561.18 | 561.18 | 555.36 | 0.82% |
| Feb 24, 2026 | 556.63 | 556.63 | 556.63 | 556.63 | 550.85 | 0.77% |
| Feb 23, 2026 | 552.37 | 552.37 | 552.37 | 552.37 | 546.64 | -1.04% |
| Feb 20, 2026 | 558.15 | 558.15 | 558.15 | 558.15 | 552.36 | 0.70% |
| Feb 19, 2026 | 554.29 | 554.29 | 554.29 | 554.29 | 548.54 | -0.27% |