Vanguard Institutional Index Fund Institutional Plus Shares (VIIIX)
NASDAQ · Mutual Fund · Delayed Price · Currency is USD
555.80
-2.37 (-0.42%)
At close: Feb 27, 2026
VIIIX Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change |
|---|---|---|---|---|---|---|
| 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% |