---
ticker: "IVOO"
name: "Vanguard S&P Mid-Cap 400 ETF"
url: "https://etf.net/etf/IVOO"
grade: "A"
score: 72
graded_at: "2026-10-12"
category: "S&P MidCap 400"
category_rank: "3 of 11"
methodology: "https://etf.net/methodology"
---

# IVOO: Vanguard S&P Mid-Cap 400 ETF

Grade **A**, Score 72 of 100. Rank 3 of 11 in S&P MidCap 400.

Graded Oct 12, 2026.

## Grade pillars

| Pillar | Score | Category rank |
| --- | --- | --- |
| Cost | 78 | 3 of 11 |
| Mission | 100 | 1 of 11 |
| Risk | 53 | 2 of 11 |
| Tradability | 37 | 7 of 11 |
| Holdings | 75 | 4 of 11 |
| Durability | 70 | 4 of 11 |

## Top holdings

The fund holds 406 positions. These are the largest 30, by weight.

| # | Ticker | Name | Weight |
| --- | --- | --- | --- |
| 1 | TWLO | Twilio Inc | 1.00% |
| 2 | ILMN | Illumina Inc | 0.90% |
| 3 | FTI | TechnipFMC PLC | 0.87% |
| 4 | P | Everpure Inc | 0.82% |
| 5 | OKTA | Okta Inc | 0.81% |
| 6 | ATI | ATI Inc | 0.78% |
| 7 | NVT | nVent Electric PLC | 0.68% |
| 8 | CRS | Carpenter Technology Corp | 0.66% |
| 9 | USFD | US Foods Holding Corp | 0.65% |
| 10 | THC | Tenet Healthcare Corp | 0.64% |
| 11 | XPO | XPO Inc | 0.64% |
| 12 | UTHR | United Therapeutics Corp | 0.61% |
| 13 | CW | Curtiss-Wright Corp | 0.60% |
| 14 | CDE | Coeur Mining Inc | 0.60% |
| 15 | RGLD | Royal Gold Inc | 0.60% |
| 16 | ENTG | Entegris Inc | 0.58% |
| 17 | ROKU | Roku Inc | 0.58% |
| 18 | WWD | Woodward Inc | 0.57% |
| 19 | RS | Reliance Inc | 0.55% |
| 20 | SNX | TD SYNNEX Corp | 0.53% |
| 21 | PR | Permian Resources Corp | 0.51% |
| 22 | NTNX | Nutanix Inc | 0.51% |
| 23 | OVV | Ovintiv Inc | 0.51% |
| 24 | ITT | ITT Inc | 0.50% |
| 25 | EWBC | East West Bancorp Inc | 0.49% |
| 26 | GWRE | Guidewire Software Inc | 0.48% |
| 27 | MTSI | MACOM Technology Solutions Holdings Inc | 0.48% |
| 28 | MKSI | MKS Inc | 0.48% |
| 29 | JLL | Jones Lang LaSalle Inc | 0.47% |
| 30 | NLY | Annaly Capital Management Inc | 0.47% |

Source: etf.net, https://etf.net/etf/IVOO. Please cite the page URL.