This Vanguard Fund Has Proved Its Defensive Chops

Key Morningstar Metrics for Vanguard Global Minimum Volatility

• Morningstar Medalist Rating
  : Gold
• Process Pillar
  : Above Average
• People Pillar
  : Above Average
• Parent Pillar
  : High

Vanguard Global Minimum Volatility Fund VMNVX is a well-executed low-volatility strategy with a track record of navigating market turbulence well.

This systematic strategy uses an optimizer to create a less risky portfolio from the FTSE Global All Cap Hedged Index, a market-capitalization-weighted index that covers the large-, mid-, and small-cap segments of the global stock market. The optimizer considers stocks’ individual volatility and their performance correlated with other holdings. That holistic perspective favors steady companies while also creating room in the portfolio for more fickle stocks with unique performance patterns. The portfolio managers also fully hedge currency risk with forward contracts.

Thorough constraints improve the strategy’s portfolio construction, even if they may weaken its defensive posture. The fund ties its stock- and sector-level allocations to the parent index. These constraints reduce concentration and ensure that the fund is not overly reliant on sectors like consumer defensive and utilities, which are favorites among simpler low-volatility strategies. Controlling for risk factors like size and momentum prevents unwanted factor wagers. While these guardrails may prevent the fund from building the most defensive portfolio possible, they ensure that no unintended bets undermine the low-volatility mandate.

The portfolio management team makes trading decisions with consideration for the strategy’s compositional rules, the portfolio’s current volatility risk, and expected trading costs.

So far, the fund has delivered on its low-volatility objective. The strategy, however, is likely to underperform in most market rallies because it cuts back on risk. Its rigorous portfolio construction process and thorough approach to risk should allow the fund to deliver on its minimum volatility objective over the long term, though.

Vanguard Global Minimum Volatility: Performance Highlights

The fund’s monthly returns typically fluctuate less than the category average. It was about 28% less volatile than the category average and captured just 53% of the market’s downside from December 2013 through September 2026, demonstrating its low-volatility prowess. This stability and downside protection did come with a modest trade-off, as the fund’s total return lagged its average peer by 27 basis points annualized over the same period.

It had a 4.86-percentage-point edge over the category during the fourth-quarter market downturn of 2018. The fund also proved its defensive chops in the bear market of 2022, outperforming its average peer by 12.4 percentage points through the calendar year. When tariff concerns roiled the market in February, March, and April of 2025, the fund posted a positive return of more than 2.5% while the large-stock blend category lost 3.6%. In keeping with the expected performance pattern of a low-volatility fund, it has struggled to keep pace in the broad market rally since May 2025, trailing its category average by nearly 10 percentage points annualized through September 2026.