IVOO · ARCA · ETF
Vanguard S&P Mid-Cap 400 ETF (IVOO) Price, Holdings & Fees
Vanguard S&P Mid-Cap 400 ETF (IVOO) closed at $625.73 on Oct 9, 2026, up 0.17% from the previous close of $624.64.
Share price, past year
1Y +14.62%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $625.73 |
| Sep 30, 2026 | $602.52 |
| Aug 31, 2026 | $565.84 |
| Jul 31, 2026 | $559.94 |
| Jun 30, 2026 | $526.08 |
| May 29, 2026 | $523.94 |
| Apr 30, 2026 | $510.35 |
| Mar 31, 2026 | $510.14 |
| Feb 27, 2026 | $513.86 |
| Jan 30, 2026 | $503.66 |
| Dec 31, 2025 | $545.98 |
| Nov 28, 2025 | $584.38 |
| Oct 31, 2025 | $571.11 |
Key statistics
- Expense ratio
- 0.07%
- as of Aug 31, 2025
- Net assets
- $5.6B
- as of May 31, 2026
- Holdings
- 404
- as of May 31, 2026
- 52-week range
- $494.68 – $625.73
Vanguard S&P Mid-Cap 400 ETF's expense ratio is 0.07%: $7.00 a year on $10,000 invested.
Holdings
Vanguard S&P Mid-Cap 400 ETF held 404 investments worth $5.60B as of May 31, 2026. Its largest holding was Flex Ltd, at 1.58% of the fund.
| # | Holding | % of fund | Value |
|---|---|---|---|
| 1 | Flex Ltd | 1.58% | $88.46M |
| 2 | Twilio Inc | 0.82% | $46.12M |
| 3 | TechnipFMC PLC | 0.79% | $44.16M |
| 4 | Curtiss-Wright Corp | 0.79% | $43.99M |
| 5 | nVent Electric PLC | 0.77% | $43.00M |
| 6 | Sterling Infrastructure Inc | 0.75% | $42.20M |
| 7 | XPO Inc | 0.72% | $40.05M |
| 8 | Everpure Inc | 0.71% | $39.80M |
| 9 | Illumina Inc | 0.71% | $39.76M |
| 10 | United Therapeutics Corp | 0.68% | $38.26M |
| 11 | ATI Inc | 0.68% | $37.97M |
| 12 | MACOM Technology Solutions Holdings Inc | 0.67% | $37.53M |
| 13 | Fabrinet | 0.67% | $37.40M |
| 14 | Carpenter Technology Corp | 0.67% | $37.28M |
| 15 | Nextpower Inc | 0.66% | $37.05M |
| 16 | MasTec Inc | 0.66% | $37.03M |
| 17 | MKS Instruments Inc | 0.62% | $34.75M |
| 18 | Entegris Inc | 0.60% | $33.66M |
| 19 | Okta Inc | 0.60% | $33.34M |
| 20 | Woodward Inc | 0.59% | $33.30M |
| 21 | Burlington Stores Inc | 0.57% | $32.13M |
| 22 | Lattice Semiconductor Corp | 0.57% | $32.10M |
| 23 | Alcoa Corp | 0.57% | $32.08M |
| 24 | Reliance Inc | 0.57% | $31.77M |
| 25 | RB Global Inc | 0.56% | $31.51M |
Top 25 of 404 holdings, as of May 31, 2026. Percentages are of the fund's net assets.
What the fund owns
| Asset type | % of fund |
|---|---|
| Stocks | 99.84% |
| Cash and short-term investments | 0.36% |
| Country | % of fund |
|---|---|
| United States | 100.19% |
Shares of net assets from the fund's N-PORT report. Funds that borrow can add up to more than 100%, with borrowing (such as repurchase agreements) shown as a negative share.
Monthly total returns
Over the 3 months to May 31, 2026, Vanguard S&P Mid-Cap 400 ETF's total return was +4.54%, as reported to the SEC.
| Month | Total return |
|---|---|
| May 31, 2026 | +2.45% |
| Apr 30, 2026 | +7.85% |
| Mar 31, 2026 | −5.39% |
The fund's own total returns as reported to the SEC (N-PORT), including reinvested distributions. Not the sample prices above.
Fund profile
- Name
- Vanguard S&P Mid-Cap 400 ETF
- Ticker
- IVOO
- Exchange
- ARCA
- Fund type
- ETF
- Trust
- VANGUARD ADMIRAL FUNDS
- SEC series ID
- S000030014
- SEC CIK
- 0000891190
- Fractional shares
- Yes
Recent SEC filings
- Jul 29, 2026
- Apr 29, 2026
- 485BPOSProspectus updateDec 19, 2025
- Oct 29, 2025
- May 1, 2025
- 485BPOSProspectus updateDec 20, 2024
- Oct 31, 2024
- May 2, 2024
Shareholder reports and prospectuses are filed by VANGUARD ADMIRAL FUNDS, the trust behind Vanguard S&P Mid-Cap 400 ETF, and cover all of its funds.
Frequently asked questions
What is IVOO's price?
Vanguard S&P Mid-Cap 400 ETF (IVOO) closed at $625.73 on Oct 9, 2026, up 0.17% from the previous close of $624.64.
What is IVOO's expense ratio?
Vanguard S&P Mid-Cap 400 ETF's expense ratio is 0.07%: $7.00 a year on $10,000 invested.
What does IVOO hold?
Vanguard S&P Mid-Cap 400 ETF held 404 investments worth $5.60B as of May 31, 2026. Its largest holding was Flex Ltd, at 1.58% of the fund. Its five largest holdings were Flex Ltd, Twilio Inc, TechnipFMC PLC, Curtiss-Wright Corp, nVent Electric PLC.
How has IVOO performed?
Over the 3 months to May 31, 2026, Vanguard S&P Mid-Cap 400 ETF's total return was +4.54%, as reported to the SEC.
Sources and methodology
Holdings, net assets and monthly returns come from the fund's N-PORT filing with the SEC, as of May 31, 2026 (filed Jul 29, 2026). The expense ratio is from the fund's prospectus or shareholder report, as of Aug 31, 2025. Prices are generated sample data for development. Data sources and disclosures