Is VO a good investment?

Vanguard Morningstar Mid-Cap ETF (VO) is a US mid-cap ETF. As of September 11, 2026, ETF Copilot scores VO 5.0 out of 10 — highest on Valuation (6.0), lowest on Risk (4.3). It trades at 21.9 times earnings, against its own median of 21.1. Its ten largest holdings are 9% of the fund.

Updated September 11, 2026

How is VO rated? ETF Copilot scores Vanguard Morningstar Mid-Cap ETF (VO) 5.0 out of 10

As of September 11, 2026, ETF Copilot scores Vanguard Morningstar Mid-Cap ETF (VO) 5.0 out of 10 overall.

ETF Copilot scores (0–10 scale, higher is better):

Overall: 5.0 / 10
Growth: 5.9 / 10
Valuation: 6.0 / 10
Risk: 4.3 / 10
Quality: 4.3 / 10
Return: 4.5 / 10

What is VO's expense ratio? 0.03% a year

As of September 11, 2026, VO charges 0.03% a year, yields 1.65% and holds $224.7B in assets across 285 positions.

Vanguard Morningstar Mid-Cap ETF (VO) — cost, income and size
Measure	VO
Expense ratio	0.03%
Dividend yield	1.65%
Assets under management	$224.7B
Holdings	285

Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.

What stands out in VO's data

U.S. mid-cap stocks, selected through a Morningstar methodology.

Charges a fraction of what peers take each year — more of the market's return stays with you.

An expense ratio of 0.03% lands among the cheapest in the category, versus a 0.15% peer median. Its trailing P/E multiple of 21.9x sits below average for the group.

A mid-cap allocation that leans toward the growth end of the blend spectrum.

Why did VO move this week? It fell 1.7% in the week to September 11, 2026 — Howmet Aerospace and Robinhood Markets drove it

VO fell 1.7% in the week to September 11, 2026. The holdings that moved it most were Howmet Aerospace (−11.9%), Robinhood Markets (−9.7%) and DoorDash (−9.0%); Bloom Energy (+17.1%) pushed the other way.

Is VO expensive right now? It trades at 21.9 times earnings, against its own median of 21.1

As of September 11, 2026, VO is more expensive than 63% of its own 114 monthly readings since 2017 — 72 of those months were cheaper than today.

Trailing twelve-month, computed by ETF Copilot from the fund's holdings rather than quoted from a data provider, and rebuilt nightly.

What's inside VO? 18% Tech

What's inside VO: Size (Large 80%, Mid 20%, Small 0%); Geography (International 6%, US 94%); Tech 17.7%; AI 2.5%; Semiconductors 2.2%; Memory 2.0%.

What are VO's top holdings? The ten largest are 9% of the fund

Howmet Aerospace, Quanta Services, Seagate Technology, Western Digital, Valero Energy, Vertiv, Marathon Petroleum, Cloudflare, Datadog and Cummins are VO's largest holdings, in that order.

Less concentrated than 61% of US Mid Cap ETFs.

Half of VO's weight sits in its 83 largest positions, and once those weights are taken into account it behaves like 214 equally weighted holdings.

Cite this

ETF Copilot, “Vanguard Morningstar Mid-Cap ETF (VO) scores and holdings analysis”, as of September 11, 2026.
https://etf-copilot.com/etf/vo