Fund Evaluator:
Bridge Builder Small/Mid Cap Growth (BBGSX)Best Performing in Mid-Cap Growth Over the Last Year
| 35.7% | PRIMECAP Odyssey Aggressive Growth (POAGX) |
| 19.0% | Eventide Gilead N (ETGLX) |
| 16.4% | Goldman Sachs Small/Mid Cap Growth Inv (GTMTX) |
| 13.4% | Sit Small Cap Growth (SSMGX) |
| 13.3% | ProFunds Mid Cap Growth Inv (MGPIX) |
Fund Details
Bridge Builder Small/Mid Cap Growth Overview
Bridge Builder Small/Mid Cap Growth (BBGSX) is an actively managed U.S. Equity Mid-Cap Growth fund. Bridge Builder launched the fund in 2015.
The investment seeks to provide capital appreciation. The fund will invest primarily in mid‑capitalization companies and no longer invest primarily in both small- and mid‑capitalization companies or follow a growth-oriented investment style, and a new 80% investment policy to invest in securities of mid‑capitalization companies (collectively, the “Repositioning”).
About Bridge Builder Small/Mid Cap Growth (BBGSX)
There are 29 members of the management team with an average tenure of 1.86 years: Steven Pollack (2026), Puneet Mansharamani (2026), Dennis Alff (2026), Jeffrey James (2021), Matthew Kamm (2020), Daniel Allen (2026), Jason White (2020), Daniel Arche (2026), Michael Buck (2021), Greg Sleight (2026), Guy Lakonishok (2026), Prakash Vijayan (2021), Nick Zylkowski (2026), Jay Warner (2022), Angela Wu (2026), Tim Collard (2026), Sundeep Khanna (2026), Edward Rackham (2026), Gal Skarishevsky (2026), Jeremy Field (2026), Brian Causey (2026), Evgenia Gvozdeva (2026), Christina Shockley (2026), Anthony Arefian (2026), Josef Lakonishok (2026), James Hamel (2020), Christopher Wallis (2026), Menno Vermeulen (2026), Ryan Crane (2015). Management tenure is more important for actively managed funds than passive index funds.
The fund has 2 primary benchmarks: Russell 3000 Growth TR USD index with a weighting of 100% and Russell 2500 Growth TR USD index with a weighting of 100%. Bridge Builder Small/Mid Cap Growth has 1636 securities in its portfolio. The top 10 holdings constitute 15.1% of the fund’s assets. The fund meets the SEC requirement of being classified as a diversified fund. The fund is not considered to have an ESG focus with its investment selection and management.
Bridge Builder Small/Mid Cap Growth is part of the Equity global asset class and is within the U.S. Equity fund group. Bridge Builder Small/Mid Cap Growth has 2.1% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 93.5%. There is 2.1% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 0.0% (0.0% domestic bond, 0.0% foreign bond and 0.0% convertible bond). Bridge Builder Small/Mid Cap Growth has 4.4% of the portfolio in cash.
Assets Under Management
The fund has $10 billion in total assets, which is above the $646 million average for the Mid-Cap Growth category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
BBGSX Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The Bridge Builder Small/Mid Cap Growth expense ratio is below average compared to funds in the Mid-Cap Growth category. Bridge Builder Small/Mid Cap Growth has an expense ratio of 0.34%, which is 69% lower than its category average, making the fund expense ratio grade a A. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. Bridge Builder Small/Mid Cap Growth has a portfolio turnover rate of 107%, indicating that holds its assets around 0.0 years. By way of comparison, the average portfolio turnover is 80% for the Mid-Cap Growth category.
Recently, in the month of September 2026, Bridge Builder Small/Mid Cap Growth returned -3.4%, which earned it a grade of D, as the Mid-Cap Growth category had an average return of -2.3%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all funds in that category.
Bridge Builder Small/Mid Cap Growth has a trailing yield of 0.11%, which is above the 0.03% category average. The fund normally distributes its income annually and its capital gains annually.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
Bridge Builder Small/Mid Cap Growth Grades
Year to date, the fund has returned 5.2%, 0.5 percentage points better than the category, which translates into a grade of B. The fund has returned 5.5% over the past year (grade of B), 13.3% over the past three years (grade of C) and 2.7% per year over the past five years (grade of C) and 10.6% per year over the past 10 years (grade of C).
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BBGSX Trailing NAV Total Returns Data as of 9/30/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| BBGSX Return (NAV) | -3.4% | -7.2% | 5.5% | 13.3% | 2.7% | 10.6% |
| BBGSX Grade | D | C | B | C | C | C |
| +/- Category | -1.1% | -0.6% | 3.1% | -0.1% | -0.1% | -0.3% |
| Mid-Cap Growth Avg | -2.3% | -6.5% | 2.4% | 13.3% | 2.8% | 10.8% |
| BBGSX Tax Cost Ratio | na | na | 1.9% | 0.7% | 1.3% | 1.3% |
BBGSX Annual NAV Total ReturnsData as of 9/30/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| BBGSX Return (NAV) | 5.2% | 8.3% | 14.5% | 21.0% | -29.8% | 16.4% | 34.4% | 29.0% | -2.1% | 21.5% | 11.5% |
| BBGSX Grade | B | B | C | C | D | B | C | F | B | F | A |
| +/- Category | 0.5% | 2.2% | -2.9% | 0.3% | -1.9% | 3.8% | -5.9% | -5.0% | 2.6% | -4.0% | 6.1% |
| Mid-Cap Growth Avg | 4.7% | 6.1% | 17.3% | 20.7% | -28.0% | 12.6% | 40.3% | 34.1% | -4.7% | 25.5% | 5.3% |
| Risk Measures | |
| Standard Deviation: | 17.2% |
| Total Risk Index: | 1.42 - High |
| Category Risk Index: | 0.92 - Below Average |
| Category Risk Grade: | B (33% Rank) |
| Beta: | 1.22 |
| R-Squared: | 78% |
| Leveraged Fund: | No |
| Inverse Fund: | No |
| Portfolio Characteristics | |
| Equity Investment Style: | Mid-Cap Growth |
| Bond Investment Style: | na |
| Yield: | 0.1% |
| Dividend Distribution: | Annually |
| Cap Gains Distribution: | Annually |
| Total Assets: | $10550 Mil |
| Fund Total Assets: | $10,550 Mil |
| Share Class Type: | Inst |
| Portfolio Turnover: | 107% |
Management Team
| Number of Managers: 29 | |||
| Longest Tenure: 11.2 years | |||
| Average Tenure: 1.9 years | |||
| Managers (Year): Crane Ryan (2015), Hamel James (2020), Kamm Matthew (2020), White Jason (2020), James Jeffrey (2021), Buck Michael (2021), Vijayan Prakash (2021), Warner Jay (2022), Wu Angela (2026), Zylkowski Nick (2026), Field Jeremy (2026), Causey Brian (2026), Gvozdeva Evgenia (2026), Shockley Christina (2026), Arefian Anthony (2026), Rackham Edward (2026), Arche Daniel (2026), Allen Daniel (2026), Mansharamani Puneet (2026), Alff Dennis (2026), Skarishevsky Gal (2026), Sleight Greg (2026), Lakonishok Guy (2026), Lakonishok Josef (2026), Wallis Christopher (2026), Vermeulen Menno (2026), Khanna Sundeep (2026), Collard Tim (2026), Pollack Steven (2026) | |||
Portfolio Composition (as of 9/30/26)
| # of Holdings: | 1636 |
| % in Top 10 Holdings: | 15.1% |
| Fund is Non-Diversified: | No |
| % in Foreign Issues: | 2.1% |
Portfolio Allocation |
|
| Domestic Stock: | 93.5% |
| Foreign Stock: | 2.1% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 0.0% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 4.4% |
Purchase Information
| Fund Family: | Bridge Builder |
| Phone Number: | 855-823-3611 |
| Website: |
| Status: | Open |
| Inception Date: | April 27, 2015 |
| Min. Initial Purchase: | $ 0 |
| Min. Initial IRA Purchase: | $ 0 |
| True No-Load: | Yes |
| Front Load Maximum: | 0.00% |
| Deferred Charge Maximum: | 0.00% |
| Redemption Charge Maximum: | 0.00% |
| 12b-1 Fee: | na |
Expenses and Fees | |
| Expense Ratio (%): | 0.34% ( Rating : Below Avg ) |
| Category Average Expense Ratio (%): | 1.09% |
| Share Class: | Bridge Builder Small/Mid Cap Growth |
| Min. Subsequent Purchase: | $ 0 |
| Min. Subsequent IRA Purchase: | $ 0 |