Vanguard Short-Term Investment-Grade Fund Institutional Shares VFSIX

Vanguard named Thanh Nguyen as a comanager of Vanguard Short-Term Investment-Grade effective April 16, 2026. This appointment does not alter the strategy’s Average People and Process Pillar ratings or its overall Morningstar Medalist Rating.

Nguyen’s experience fits the strategy well. She joined Vanguard in 2013 and has worked in investment management since 2005. In recent years, she has taken on a larger leadership role with the fund alongside lead manager Arvind Narayanan, deepening her short-term bond expertise. Confidence in her abilities led Vanguard to name her a comanager on Vanguard Ultra-Short Bond ETF in January 2025, which expanded her portfolio management responsibilities.

Nguyen strengthens the team’s securitized capabilities, too. She previously worked as a structured products trader, and more recently served as an assistant portfolio manager on the investment-grade sector team. That background matches this strategy’s opportunity set and supports Vanguard’s long-standing approach of developing and promoting emerging talent.

The team supporting Vanguard Short-Term Investment-Grade has sharpened its specialization in recent years, though this evolution is ongoing.

The refinement is most evident in the leadership. Industry veteran Arvind Narayanan has led the strategy since 2019 and now heads Vanguard’s investment-grade corporate team. He partners with comanager Daniel Shaykevich, who has served on the fund since 2018. Shaykevich joined the firm in 2013 and oversees Vanguard’s emerging-markets team. Although not officially listed on the fund, portfolio manager Thanh Nguyen plays an important role in the strategy’s decision-making. Over the past few years, as Nguyen has stepped more into a leadership role alongside Narayanan, she has supported the effort with her experience in short-term bond markets. Her increasing responsibilities should benefit the fund and reduce Narayanan’s workload.

The process remains disciplined and consistent. The firm's senior fixed-income leaders shape macroeconomic views, setting broad risk parameters around duration (a measure of interest rate sensitivity), sector allocation, and credit outlook. The managers collaborate with investment-grade specialists and the risk team to allocate risk within guidelines and refine portfolio construction. Like other Vanguard fixed-income strategies, this one avoids outsize bets of all kinds, maintaining a measured approach to risk. For example, the team keeps the portfolio's interest rate sensitivity, or duration, within a year of the Bloomberg 1–5 Year Credit Index, and BBB exposure remains within 10 percentage points of the index. The managers have some flexibility to push these limits, but their focus remains on broad sector themes rather than issuer-specific overweightings. Despite its solid process, the managers typically keep most assets to corporate debt, making this fund a less sector-diversified option than many short-term bond Morningstar Category peers.

The strategy's performance has been solid versus the typical peer under Narayanan's tenure and continues to strengthen. Since December 2019 (his first full month), the admiral shares' 2.9% annualized gain through February 2026 beat the index by 11 basis points and edged out the category median by 10 basis points. Recent results have been even better: The fund’s 6.3% three-year trailing return through February 2026 ranked in the top quintile of the category. Its longer-duration profile has helped during falling-yield environments, as seen in 2019, while proving a headwind during periods of rising rates, such as in 2022.

Vanguard employs a disciplined and repeatable process here, but the strategy's concentration in corporate debt means its portfolio is less diversified than most in the short-term bond category; it earns an Average Process rating.

Consistency is a hallmark of the team's approach. The firm's fixed-income senior leaders develop macroeconomic scenarios to shape the strategy's fundamental view and establish broad risk parameters, which include duration, the shape of the yield curve, sector allocation, and the credit outlook for each sector. Managers advocate for changes to the risk budget when they identify sustained risks or opportunities, then collaborate with the firm's sizable investment-grade sector specialist team to allocate risk within the portfolio's guidelines, and they also gain insights from a dedicated risk team for necessary adjustments.

Despite this solid process, the strategy maintains a concentration on corporate debt well in excess of many category peers, most of which have higher allocations to securitized debt. This will affect the fund’s relative return profile, making it more correlated—for better or worse—to the fortunes of the corporate market.

Like other actively managed Vanguard fixed-income strategies, this fund avoids outsize bets compared with its category peers. The team manages the portfolio's duration well within a year of the Bloomberg 1-5 Year Credit Index and keeps its stake in BBB rated bonds within 10 percentage points of the index. While the portfolio managers have modest discretion to push against these parameters to pursue investment ideas, they focus on broad sector themes rather than sizable overweightings in individual issuers.

This strategy typically keeps most of its assets in corporate bonds (79% as of December 2025), while the remainder of the portfolio comprised securitized fare (7%), Treasuries (9%), and a sprinkling of emerging-markets debt (4%). Since manager Arvind Narayanan joined the fund in November 2019, the team has increased its corporate debt exposures, especially in the industrials sector. The fund’s 40% industrials stake as of December 2025 was roughly 8 percentage points higher than in September 2019. One of the major drivers of this increase came from greater exposure to the technology sector. Ramping up this corporate exposure led to a corresponding decrease in securitized exposure. Over the same period, the fund's securitized stake dropped to 7% from 24%, more than 10 percentage points below the peer median at year-end 2025.

This strategy's bias toward corporate bonds saddles it with more credit risk than the typical short-term bond category peer. After hovering close to that of its typical peer over the decade ended December 2019, the strategy's BBB exposure rose to 50% as of December 2025 from 30% in September 2019, roughly 30 percentage points higher than its peer median. Yet, its high-yield stake has remained more conservative than the typical peer's. This bucket made up 2% of assets as of December 2025, less than the peer median of 3%.

While the strategy's interest rate sensitivity as measured by duration doesn't stray far from that of its index, it tends to be longer than most peers'. As of December 2025, the fund's 2.6-year duration was about half a year longer than the category median.

The investment team has evolved in recent years as roles and decision-making responsibilities have become more clearly defined.

It earns an Average People rating.

This transition is most evident within the supporting team. An industry veteran Arvind Narayanan brings more than two decades of experience and has led this strategy since November 2019. He joined Vanguard from State Street Global earlier that year, where he headed the investment-grade credit team, and now oversees Vanguard’s investment-grade corporate sector group. He works alongside comanager Daniel Shaykevich, who has comanaged this strategy since 2018 and leads the firm’s emerging-markets team. Although not formally named on the mandate, Thanh Nguyen plays a meaningful role in the strategy’s decision-making. Since joining Vanguard in 2013, Nguyen has developed strong short-term bond market experience and, beginning in early 2025, expanded fund-management responsibilities within the firm’s exchange-traded fund lineup, including Vanguard Ultra-Short Bond ETF.

The managers benefit from a seasoned bench of more than 30 investment-grade credit professionals—including eight traders and 24 analysts averaging 14 years of industry experience—who provide fundamental research and relative value insights.

Manager ownership, which reflects alignment with investors, could be better. Shaykevich invests between USD 100,001 and USD 500,000, while Narayanan does not personally invest in this 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.

This strategy's emphasis on corporate bonds has imbued it with more credit risk than its typical short-term bond category rival, while its longer-duration profile makes it more rate-sensitive than most peers.

Over lead manager Arvind Narayanan's tenure since December 2019 (his first full month), the admiral shares' 2.9% annualized gain through February 2026 beat the Bloomberg 1-5 Year Credit Index by 11 basis points and topped the category peer median’s 2.8% return. The strategy's information ratio (a measure of excess return over excess standard deviation versus the benchmark) ranked in the top decile in the category during the same period, indicating that investors have thus far been compensated for the fund’s additional risks.

Despite the strategy's higher credit risk relative to peers, it has performed well during credit selloffs historically. For example, its performance during the 2020 pandemic-related selloff was middling: Its 4.6% loss between Feb. 20 and March 23 lagged its peer median by just 9 basis points. That relatively modest drawdown left it in a stronger position for the subsequent credit rebound. Over the full calendar year, the fund's 5.3% gain ranked in the top quartile in the short-term bond category.

On the other hand, the strategy's longer-duration stance has stung during rate-driven selloffs. When long-term yields rose during 2022, the fund's 5.8% loss trailed the index and the peer median's 5.6% and 4.7% respective drops.

In 2025, the strategy’s emerging-markets debt and asset-backed securities positions benefited the fund’s relative performance versus the category peers; its 6.9% return that year topped the peer median’s 6.0% return.

Vanguard Short-Term Investment-Grade I's Prospectus Adjusted Expense Ratio is 0.07% per year. It places it in the cheapest quintile of the Morningstar US Fund Short-Term Bond Category, where the median fee is 0.53% per year. This cost positioning translates into a Medalist Rating Price Score of 2.35, 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.