Vanguard Core Bond Fund Admiral Shares VCOBX

Vanguard Core Bond Fund’s experienced management team and robust supporting cast have consistently executed a thoughtful approach, earning a People rating upgrade to Above Average from Average.

Vanguard’s fixed-income platform has evolved materially over the last decade, and the depth and experience of resources now stand out from many peers. Co-lead managers Brian Quigley and Daniel Shaykevich have managed this strategy since 2016 (the fund’s inception) and 2018, respectively, and their firm experience dates back even further. Quigley joined Vanguard in 2003 as a mortgage specialist and climbed the ranks and now heads the firm’s mortgage-backed securities and agencies sector team. Shaykevich, who joined in 2013 from BlackRock, heads the emerging-market debt team with a risk-management background. The duo works with comanager Arvind Narayanan, who also holds a leadership role as head of the investment-grade corporate sector team. The complementary sector expertise makes these managers a good fit for this diversified core bond portfolio.

Effective collaboration between the managers and sector teams has translated to strong decision-making over the years. Each sector team includes a deep pool of analysts, traders, and quantitative analysts who provide fundamental and relative-value insights, while the managers partner closely with a dedicated risk team that provides continuous oversight.

This collaborative structure is key to the process. Senior fixed-income leaders define the macro framework for duration, yield-curve, and sector positioning, while Quigley and Shaykevich work with sector specialists to select securities among Treasuries, securitized assets, corporate bonds, and emerging-market debt. The team actively manages the portfolio’s duration, a measure of interest rate sensitivity, but keeps that measure within half a year of the Bloomberg US Aggregate Float Adjusted Index.

The fund has delivered strong long-term results. Since May 2018, Quigley and Shaykevich’s first full month managing the fund together, the Admiral shares’ 2.7% annualized gain through November 2025 beat roughly 90% of distinct intermediate core Morningstar Category peers. The strategy has underperformed over short periods. For instance, in 2022’s bond market volatility, the strategy fell behind half of its rivals, partly because of its relatively longer duration stance when yields climbed. But its value-driven approach and strong risk management efforts should deliver solid results for patient investors over the long term.

The strategy applies a disciplined, value-driven approach that is thoughtful and repeatable.

It earns an Above Average Process rating.

The process is straightforward in many ways and blends top-down macro analysis and bottom-up credit, but the firm’s structured framework strengthens decision-making and risk management, which sets the process apart from most peers. Senior fixed-income leaders set macroeconomic scenarios that guide high-level positioning, including duration, yield-curve stance, and sector tilts. Co-lead managers Brian Quigley and Daniel Shaykevich then adjust the strategy’s risk budget as opportunities emerge. The managers work with sector specialists to debate and discuss portfolio allocations within the guideline and aim to add value through security selection. They also gain insights from the firm’s dedicated risk team for necessary adjustments.

The managers invest across a broad opportunity set including Treasuries, securitized assets, corporates, and emerging-market debt and can allocate up to 5% of assets in below-investment-grade securities, though they have kept this exposure low due to unattractive valuations (1% as of September 2025). The managers also use derivatives, such as credit default swaps, to obtain precise sector exposures while trying to minimize unwanted duration or yield-curve risks.

The managers typically avoid making large interest rate bets and typically keep the portfolio’s duration in line with the Bloomberg US Aggregate Float Adjusted Index but may extend or shorten it by up to half a year. Duration has ranged between 5.8 and 7.2 years over the trailing five years ended September 2025, but it has hovered around 5.9 years since year-end 2024. Ahead of the November 2024 US presidential election, the team shortened the fund’s duration to limit interest rate volatility; its 5.8 years as of December 2024 was a tenth of a year shorter than the prior quarter.

Sector exposures shift where the managers find attractive value and allocate the bulk of the portfolio’s assets to Treasuries (24% as of September 2025), securitized assets (30%), corporate bonds (29%), and emerging-market debt (6%). Over the trailing five years ended September 2025, the fund’s corporate exposures have ranged between 25% and 40% of assets, depending on market conditions and opportunities. For example, anticipating tariff-related volatility in early 2025, the managers reduced corporate bond exposure by about 2 percentage points during 2025’s first quarter, while increasing Treasuries by a similar amount to enhance liquidity and reduce credit risk.

The team has maintained exposure to emerging-market debt to diversify the portfolio and enhance return potential, and it held about 5% of assets in these riskier bonds over the last five years through September 2025. The managers increased this allocation in early 2025 when valuations appeared attractive but later reduced it to manage risk. As of September 2025, the allocation stood at 6%, roughly 2 percentage points lower than in June 2025.

A seasoned management team effectively leverages Vanguard’s deep fixed-income resources, which were thoughtfully built out over the last decade, earning a People rating upgrade to Above Average from Average.

Co-lead managers Brian Quigley and Daniel Shaykevich have managed the fund since March 2016 and April 2018, respectively, and both hold senior leadership roles at the firm and bring more than two decades of industry experience. Quigley joined Vanguard in 2003 and now leads the firm’s MBS and agencies sector team, while Shaykevich, who arrived from BlackRock in 2013 with a risk management background, leads the emerging-market sector team. They work alongside comanager Arvind Narayanan, who brings 23 years of experience and has managed the strategy since November 2019. Narayanan joined Vanguard from State Street Global Advisors, where he led the investment-grade credit team, and now serves as head of Vanguard’s investment-grade corporate sector team. The managers’ sector expertise and skill sets make them a natural fit to run this diversified portfolio that allocates across these sectors.

Vanguard’s fixed-income deep resources now stand out relative to many rivals. The managers leverage a team of more than 60 analysts, traders, and quantitative analysts across sectors, providing both fundamental and relative-value insights. Firmwide resources add another layer of support, while a dedicated risk team closely monitors portfolio positioning. These resources have helped deliver an edge over peers.

Manager ownership, which reflects alignment with investors, could be better. The three managers do not have personal investments in the fund.

Vanguard maintains its High Parent Pillar rating as it continues to grow under new leadership.

CEO Salim Ramji has had a busy first year captaining Vanguard’s crew, and the ship remains pointed in the right direction. The firm made its largest round of fee cuts in early 2025, which came at an estimated cost of USD 350 million. It established a separate division dedicated to its advice and wealth management efforts, a sign that it wants to seriously compete within those lines of business. Asset growth has continued to be a huge success. Only BlackRock’s inflows rival the money Vanguard is taking in. Likewise, the number of clients it serves has more than doubled since 2015.

Despite that success, an ever-growing number of clients has presented a challenge: Vanguard can’t grow its services fast enough to keep up with demand. In some instances, it has had to curb certain services and capabilities or raise fees on others to cope, causing some loyal clients to criticize what they perceive as deteriorating services.

Vanguard has ambitions to bring its disruptive legacy to the bond market. It created roughly a dozen low-cost bond exchange-traded funds for US investors and several others abroad over the 12 months through June 2025. All have low fees in their respective categories, and the actively managed strategies align with Vanguard’s philosophy. They are relatively easy to understand and are conservatively managed.

Vanguard has another opportunity to prove that clients are still its priority. On the surface, its endeavor into the high-fee deal-making world of private assets alongside Wellington and Blackstone looks like a cultural mismatch. So far, the collaboration hasn’t produced anything that’s concerning.

Long-term absolute and risk-adjusted returns are compelling.

Since Brian Quigley and Daniel Shaykevich’s first full month together in May 2018, the Admiral shares’ 2.7% annualized gain through November 2025 beat the typical intermediate core bond Morningstar Category peer and the Bloomberg US Aggregate Float Adjusted Index by 49 and 54 basis points, respectively. The strategy’s information ratio (a measure of excess return over excess standard deviation versus the benchmark) topped all the category peers over that period.

Consistent annual outperformance has been a hallmark, too. In the eight calendar years since this fund’s inception in 2016, the fund beat the peer median in all but one year (2018). The value-driven approach, combined with robust risk management, has been particularly beneficial during periods of market stress. For instance, during the pandemic-driven credit selloff between Feb. 20, 2020, and March 23, 2020, the fund’s 1.5% loss was less severe than the typical rival’s 3.3% decline, outpacing more than two-thirds of peers. Over the full year, the fund’s 10.4% return ranked in the top decile of the distinct peer group.

The managers keep duration tightly aligned with the benchmark, which may lead to modest deviations versus the typical peer. Even so, small differences can influence relative results in volatile rate environments. For instance, when long-term yields rose in 2022, the fund’s 6.6-year duration was slightly longer than its peer median of 6.5, which muted returns relative to peers; its 5.9% loss during the first quarter in 2022 trailed more than half of its rivals. However, as the managers shortened the fund’s duration over the course of the year, it held up better against that group. Over the full calendar year, the fund’s 13.1% drop was less severe than the typical peer’s 13.3% loss.

Vanguard Core Bond Admiral's Prospectus Adjusted Expense Ratio is 0.1% per year. It places it in the cheapest quintile of the Morningstar US Fund Intermediate Core Bond Category, where the median fee is 0.46% per year. This cost positioning translates into a Medalist Rating Price Score of 2.12, which reflects its relative price positioning within the category. The Price Score ranges from -2.50 (most expensive) to +2.50 (cheapest), with higher scores indicating better cost competitiveness.