Vanguard Institutional Index Instl Pl (VIIIX)
NASDAQ · Mutual Fund · Delayed Price · Currency is USD
547.66
-1.50 (-0.27%)
Oct 9, 2025, 4:00 PM EDT
VIIIX Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change |
|---|---|---|---|---|---|---|
| Oct 9, 2025 | 547.66 | 547.66 | 547.66 | 547.66 | - | -0.27% |
| Oct 8, 2025 | 549.16 | 549.16 | 549.16 | 549.16 | 549.16 | 0.58% |
| Oct 7, 2025 | 545.98 | 545.98 | 545.98 | 545.98 | 545.98 | -0.38% |
| Oct 6, 2025 | 548.06 | 548.06 | 548.06 | 548.06 | 548.06 | 0.37% |
| Oct 3, 2025 | 546.03 | 546.03 | 546.03 | 546.03 | 546.03 | 0.02% |
| Oct 2, 2025 | 545.94 | 545.94 | 545.94 | 545.94 | 545.94 | 0.06% |
| Oct 1, 2025 | 545.60 | 545.60 | 545.60 | 545.60 | 545.60 | 0.35% |
| Sep 30, 2025 | 543.72 | 543.72 | 543.72 | 543.72 | 543.72 | 0.42% |
| Sep 29, 2025 | 541.45 | 541.45 | 541.45 | 541.45 | 541.45 | 0.26% |
| Sep 26, 2025 | 540.03 | 540.03 | 540.03 | 540.03 | 540.03 | 0.59% |
| Sep 25, 2025 | 536.84 | 536.84 | 536.84 | 536.84 | 536.84 | -0.50% |
| Sep 24, 2025 | 539.54 | 539.54 | 539.54 | 539.54 | 539.54 | -0.57% |
| Sep 23, 2025 | 542.62 | 542.62 | 542.62 | 542.62 | 541.08 | -0.55% |
| Sep 22, 2025 | 545.62 | 545.62 | 545.62 | 545.62 | 544.07 | 0.45% |
| Sep 19, 2025 | 543.18 | 543.18 | 543.18 | 543.18 | 541.64 | 0.49% |
| Sep 18, 2025 | 540.54 | 540.54 | 540.54 | 540.54 | 539.00 | 0.48% |
| Sep 17, 2025 | 537.96 | 537.96 | 537.96 | 537.96 | 536.43 | -0.09% |
| Sep 16, 2025 | 538.47 | 538.47 | 538.47 | 538.47 | 536.94 | -0.13% |
| Sep 15, 2025 | 539.15 | 539.15 | 539.15 | 539.15 | 537.62 | 0.49% |
| Sep 12, 2025 | 536.50 | 536.50 | 536.50 | 536.50 | 534.98 | -0.04% |
| Sep 11, 2025 | 536.74 | 536.74 | 536.74 | 536.74 | 535.22 | 0.85% |
| Sep 10, 2025 | 532.22 | 532.22 | 532.22 | 532.22 | 530.71 | 0.30% |
| Sep 9, 2025 | 530.62 | 530.62 | 530.62 | 530.62 | 529.11 | 0.27% |
| Sep 8, 2025 | 529.18 | 529.18 | 529.18 | 529.18 | 527.68 | 0.22% |
| Sep 5, 2025 | 528.04 | 528.04 | 528.04 | 528.04 | 526.54 | -0.30% |
| Sep 4, 2025 | 529.64 | 529.64 | 529.64 | 529.64 | 528.14 | 0.84% |
| Sep 3, 2025 | 525.21 | 525.21 | 525.21 | 525.21 | 523.72 | 0.51% |
| Sep 2, 2025 | 522.54 | 522.54 | 522.54 | 522.54 | 521.06 | -0.67% |
| Aug 29, 2025 | 526.08 | 526.08 | 526.08 | 526.08 | 524.59 | -0.63% |
| Aug 28, 2025 | 529.42 | 529.42 | 529.42 | 529.42 | 527.92 | 0.32% |
| Aug 27, 2025 | 527.74 | 527.74 | 527.74 | 527.74 | 526.24 | 0.24% |
| Aug 26, 2025 | 526.48 | 526.48 | 526.48 | 526.48 | 524.98 | 0.42% |
| Aug 25, 2025 | 524.28 | 524.28 | 524.28 | 524.28 | 522.79 | -0.42% |
| Aug 22, 2025 | 526.51 | 526.51 | 526.51 | 526.51 | 525.01 | 1.52% |
| Aug 21, 2025 | 518.62 | 518.62 | 518.62 | 518.62 | 517.15 | -0.39% |
| Aug 20, 2025 | 520.63 | 520.63 | 520.63 | 520.63 | 519.15 | -0.24% |
| Aug 19, 2025 | 521.89 | 521.89 | 521.89 | 521.89 | 520.41 | -0.58% |
| Aug 18, 2025 | 524.92 | 524.92 | 524.92 | 524.92 | 523.43 | - |
| Aug 15, 2025 | 524.94 | 524.94 | 524.94 | 524.94 | 523.45 | -0.27% |
| Aug 14, 2025 | 526.34 | 526.34 | 526.34 | 526.34 | 524.85 | 0.03% |
| Aug 13, 2025 | 526.17 | 526.17 | 526.17 | 526.17 | 524.68 | 0.33% |
| Aug 12, 2025 | 524.45 | 524.45 | 524.45 | 524.45 | 522.96 | 1.14% |
| Aug 11, 2025 | 518.56 | 518.56 | 518.56 | 518.56 | 517.09 | -0.24% |
| Aug 8, 2025 | 519.81 | 519.81 | 519.81 | 519.81 | 518.33 | 0.79% |
| Aug 7, 2025 | 515.74 | 515.74 | 515.74 | 515.74 | 514.28 | -0.08% |
| Aug 6, 2025 | 516.13 | 516.13 | 516.13 | 516.13 | 514.66 | 0.73% |
| Aug 5, 2025 | 512.40 | 512.40 | 512.40 | 512.40 | 510.94 | -0.48% |
| Aug 4, 2025 | 514.89 | 514.89 | 514.89 | 514.89 | 513.43 | 1.48% |
| Aug 1, 2025 | 507.40 | 507.40 | 507.40 | 507.40 | 505.96 | -1.60% |
| Jul 31, 2025 | 515.63 | 515.63 | 515.63 | 515.63 | 514.17 | -0.36% |