The fund is Vanguard's take on the Russell 1000 Value Index. It offers coverage on the largest 1,000 companies in the US large-cap value space. The portfolio is curated by selecting and weighting stocks based on two style factors: price-to-book ratios and growth forecasts. The fund reaches beyond the large-cap space to include significant exposure to mid-caps. This preference for smaller firms has at times made it slightly riskier. Overall, the fund delivers adequate exposure. The index is reconstituted and rebalanced annually.