Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX)
NASDAQ · Mutual Fund
· Delayed Price · Currency is USD
555.12
+4.28 (0.78%)
At close: Mar 4, 2026
VIIIX Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change |
|---|---|---|---|---|---|---|
| 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% |
| Jan 7, 2026 | 558.32 | 558.32 | 558.32 | 558.32 | 558.32 | -0.34% |
| Jan 6, 2026 | 560.25 | 560.25 | 560.25 | 560.25 | 560.25 | 0.63% |
| Jan 5, 2026 | 556.76 | 556.76 | 556.76 | 556.76 | 556.76 | 0.64% |
| Jan 2, 2026 | 553.24 | 553.24 | 553.24 | 553.24 | 553.24 | 0.21% |
| Dec 31, 2025 | 552.07 | 552.07 | 552.07 | 552.07 | 552.07 | -0.73% |
| Dec 30, 2025 | 556.12 | 556.12 | 556.12 | 556.12 | 556.12 | -0.14% |
| Dec 29, 2025 | 556.88 | 556.88 | 556.88 | 556.88 | 556.88 | -0.35% |
| Dec 26, 2025 | 558.82 | 558.82 | 558.82 | 558.82 | 558.82 | -0.02% |
| Dec 24, 2025 | 558.94 | 558.94 | 558.94 | 558.94 | 558.94 | 0.32% |
| Dec 23, 2025 | 557.14 | 557.14 | 557.14 | 557.14 | 557.14 | -0.63% |
| Dec 22, 2025 | 554.59 | 554.59 | 554.59 | 560.70 | 554.59 | 0.65% |
| Dec 19, 2025 | 551.01 | 551.01 | 551.01 | 557.08 | 551.01 | 0.88% |
| Dec 18, 2025 | 546.18 | 546.18 | 546.18 | 552.20 | 546.18 | 0.80% |
| Dec 17, 2025 | 541.87 | 541.87 | 541.87 | 547.84 | 541.87 | -1.16% |
| Dec 16, 2025 | 548.22 | 548.22 | 548.22 | 554.26 | 548.22 | -0.23% |
| Dec 15, 2025 | 549.51 | 549.51 | 549.51 | 555.56 | 549.51 | -0.14% |
| Dec 12, 2025 | 550.30 | 550.30 | 550.30 | 556.36 | 550.30 | -1.06% |
| Dec 11, 2025 | 556.19 | 556.19 | 556.19 | 562.32 | 556.19 | 0.21% |
| Dec 10, 2025 | 555.04 | 555.04 | 555.04 | 561.15 | 555.04 | 0.68% |
| Dec 9, 2025 | 551.30 | 551.30 | 551.30 | 557.37 | 551.30 | -0.09% |
| Dec 8, 2025 | 551.77 | 551.77 | 551.77 | 557.85 | 551.77 | -0.34% |
| Dec 5, 2025 | 553.65 | 553.65 | 553.65 | 559.75 | 553.65 | 0.21% |
| Dec 4, 2025 | 552.50 | 552.50 | 552.50 | 558.58 | 552.49 | 0.11% |
| Dec 3, 2025 | 551.86 | 551.86 | 551.86 | 557.94 | 551.86 | 0.30% |
| Dec 2, 2025 | 550.21 | 550.21 | 550.21 | 556.27 | 550.21 | 0.25% |
| Dec 1, 2025 | 548.85 | 548.85 | 548.85 | 554.89 | 548.84 | -0.52% |
| Nov 28, 2025 | 551.71 | 551.71 | 551.71 | 557.79 | 551.71 | 0.54% |
| Nov 26, 2025 | 548.76 | 548.76 | 548.76 | 554.80 | 548.76 | 0.69% |
| Nov 25, 2025 | 544.99 | 544.99 | 544.99 | 550.99 | 544.99 | 0.91% |
| Nov 24, 2025 | 540.06 | 540.06 | 540.06 | 546.01 | 540.06 | 1.55% |
| Nov 21, 2025 | 531.82 | 531.82 | 531.82 | 537.68 | 531.82 | 0.99% |
| Nov 20, 2025 | 526.61 | 526.61 | 526.61 | 532.41 | 526.61 | -1.54% |
| Nov 19, 2025 | 534.86 | 534.86 | 534.86 | 540.75 | 534.86 | 0.38% |
| Nov 18, 2025 | 532.84 | 532.84 | 532.84 | 538.71 | 532.84 | -0.82% |
| Nov 17, 2025 | 537.24 | 537.24 | 537.24 | 543.16 | 537.24 | -0.91% |
| Nov 14, 2025 | 542.16 | 542.16 | 542.16 | 548.13 | 542.16 | -0.03% |
| Nov 13, 2025 | 542.32 | 542.32 | 542.32 | 548.29 | 542.32 | -1.65% |
| Nov 12, 2025 | 551.43 | 551.43 | 551.43 | 557.50 | 551.43 | 0.07% |
| Nov 11, 2025 | 551.06 | 551.06 | 551.06 | 557.13 | 551.06 | 0.21% |
| Nov 10, 2025 | 549.92 | 549.92 | 549.92 | 555.98 | 549.92 | 1.55% |
| Nov 7, 2025 | 541.52 | 541.52 | 541.52 | 547.48 | 541.52 | 0.14% |
| Nov 6, 2025 | 540.77 | 540.77 | 540.77 | 546.73 | 540.77 | -1.12% |
| Nov 5, 2025 | 546.89 | 546.89 | 546.89 | 552.91 | 546.89 | 0.37% |
| Nov 4, 2025 | 544.89 | 544.89 | 544.89 | 550.89 | 544.89 | -1.17% |
| Nov 3, 2025 | 551.36 | 551.36 | 551.36 | 557.43 | 551.36 | 0.18% |
| Oct 31, 2025 | 550.38 | 550.38 | 550.38 | 556.44 | 550.38 | 0.27% |
| Oct 30, 2025 | 548.90 | 548.90 | 548.90 | 554.95 | 548.90 | -0.99% |
| Oct 29, 2025 | 554.38 | 554.38 | 554.38 | 560.49 | 554.38 | -0.01% |
| Oct 28, 2025 | 554.41 | 554.41 | 554.41 | 560.52 | 554.41 | 0.23% |
| Oct 27, 2025 | 553.14 | 553.14 | 553.14 | 559.23 | 553.14 | 1.23% |
| Oct 24, 2025 | 546.42 | 546.42 | 546.42 | 552.44 | 546.42 | 0.79% |
| Oct 23, 2025 | 542.12 | 542.12 | 542.12 | 548.09 | 542.12 | 0.59% |
| Oct 22, 2025 | 538.96 | 538.96 | 538.96 | 544.90 | 538.96 | -0.53% |
| Oct 21, 2025 | 541.85 | 541.85 | 541.85 | 547.82 | 541.85 | - |
| Oct 20, 2025 | 541.83 | 541.83 | 541.83 | 547.80 | 541.83 | 1.07% |
| Oct 17, 2025 | 536.11 | 536.11 | 536.11 | 542.01 | 536.11 | 0.53% |
| Oct 16, 2025 | 533.29 | 533.29 | 533.29 | 539.16 | 533.29 | -0.63% |
| Oct 15, 2025 | 536.66 | 536.66 | 536.66 | 542.57 | 536.66 | 0.41% |
| Oct 14, 2025 | 534.47 | 534.47 | 534.47 | 540.36 | 534.47 | -0.15% |
| Oct 13, 2025 | 535.29 | 535.29 | 535.29 | 541.19 | 535.29 | 1.56% |
| Oct 10, 2025 | 527.08 | 527.08 | 527.08 | 532.88 | 527.07 | -2.70% |
| Oct 9, 2025 | 541.69 | 541.69 | 541.69 | 547.66 | 541.69 | -0.27% |