BBGSX vs. MXMGX

Last updated Aug 1, 2026

BBGSX (Bridge Builder Small/Mid Cap Growth Fund) and MXMGX (Great-West T. Rowe Price Mid Cap Growth Fund) are both Mid Cap Growth Equities funds. Over the past 10 years, BBGSX returned 10.09%/yr vs 8.68%/yr for MXMGX. Their correlation of 0.90 means they have usually moved in the same direction. BBGSX charges 0.38%/yr vs 1.02%/yr for MXMGX.

Performance

BBGSX vs. MXMGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bridge Builder Small/Mid Cap Growth Fund (BBGSX) and Great-West T. Rowe Price Mid Cap Growth Fund (MXMGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BBGSX achieves a 6.88% return, which is significantly higher than MXMGX's 2.39% return. Over the past 10 years, BBGSX has outperformed MXMGX with an annualized return of 10.09%, while MXMGX has yielded a comparatively lower 8.68% annualized return.

BBGSX

• 1D: 1.58%
• 1M: -3.76%
• 6M: 2.59%
• YTD: 6.88%
• 1Y: 6.09%
• 3Y*: 8.29%
• 5Y*: 1.38%
• 10Y*: 10.09%
• ALL TIME*: 10.45%

MXMGX

• 1D: 0.49%
• 1M: -1.74%
• 6M: 2.12%
• YTD: 2.39%
• 1Y: 3.95%
• 3Y*: 5.58%
• 5Y*: 1.73%
• 10Y*: 8.68%
• ALL TIME*: 5.89%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
BBGSX Bridge Builder Small/Mid Cap Growth Fund	$0.00	$0.00	$0.00
MXMGX Great-West T. Rowe Price Mid Cap Growth Fund	$0.00	$0.00	$0.00

BBGSX vs. MXMGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BBGSX Bridge Builder Small/Mid Cap Growth Fund	6.88%	0.99%	14.47%	20.98%	-29.84%	16.57%	34.41%	29.01%	-2.18%	21.47%
MXMGX Great-West T. Rowe Price Mid Cap Growth Fund	2.39%	2.99%	9.02%	19.61%	-22.82%	15.25%	23.65%	31.28%	-2.80%	23.89%

Correlation

The correlation between BBGSX and MXMGX is 0.79, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.79
Correlation (3Y) Balances recent behavior with more history.	0.83
Correlation (5Y) Shows whether the relationship held over a longer period.	0.88
Correlation (10Y) Provides a long-term view across more market conditions.	0.90
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016	0.90

The correlation between BBGSX and MXMGX shifts across timeframes, from 0.79 (1 year) to 0.90 (all time), reflecting how their relationship changes across market environments.

Return for Risk

BBGSX vs. MXMGX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

BBGSX

BBGSX Risk / Return Rank: 8
BBGSX Sharpe Ratio Rank: 8
BBGSX Sortino Ratio Rank: 8
BBGSX Omega Ratio Rank: 8
BBGSX Calmar Ratio Rank: 8
BBGSX Martin Ratio Rank: 8

MXMGX

MXMGX Risk / Return Rank: 8
MXMGX Sharpe Ratio Rank: 8
MXMGX Sortino Ratio Rank: 8
MXMGX Omega Ratio Rank: 8
MXMGX Calmar Ratio Rank: 9
MXMGX Martin Ratio Rank: 9

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

BBGSX vs. MXMGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bridge Builder Small/Mid Cap Growth Fund (BBGSX) and Great-West T. Rowe Price Mid Cap Growth Fund (MXMGX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	BBGSX	MXMGX	Difference
Sharpe ratio: Return per unit of total volatility	0.21	0.25	-0.04
Sortino ratio: Return per unit of downside risk	0.42	0.45	-0.03
Omega ratio: Gain probability vs. loss probability	1.05	1.05	0.00
Calmar ratio: Return relative to maximum drawdown	0.23	0.32	-0.09
Martin ratio: Return relative to average drawdown	0.68	1.07	-0.40

BBGSX vs. MXMGX - Sharpe Ratio Comparison

The current BBGSX Sharpe Ratio is 0.21, which is comparable to the MXMGX Sharpe Ratio of 0.25. The chart below compares the historical Sharpe Ratios of BBGSX and MXMGX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

BBGSX vs. MXMGX - Drawdown Comparison

The maximum BBGSX drawdown since its inception was -37.95%, smaller than the maximum MXMGX drawdown of -60.97%. Use the drawdown chart below to compare losses from any high point for BBGSX and MXMGX.

Drawdown Indicators

	BBGSX	MXMGX	Difference
Max Drawdown Largest peak-to-trough decline	-37.95%	-60.97%	+23.02%
Max Drawdown (1Y) Largest decline over 1 year	-16.72%	-10.29%	-6.43%
Max Drawdown (3Y) Largest decline over 3 years	-26.11%	-23.17%	-2.94%
Max Drawdown (5Y) Largest decline over 5 years	-37.95%	-32.33%	-5.62%
Max Drawdown (10Y) Largest decline over 10 years	-37.95%	-35.88%	-2.07%
Current Drawdown Current decline from peak	-5.64%	-2.15%	-3.49%
Average Drawdown Average peak-to-trough decline	-9.46%	-11.74%	+2.28%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.65%	3.09%	+2.56%

Volatility

BBGSX vs. MXMGX - Volatility Comparison

Bridge Builder Small/Mid Cap Growth Fund (BBGSX) has a higher volatility of 4.22% compared to Great-West T. Rowe Price Mid Cap Growth Fund (MXMGX) at 2.53%. This indicates that BBGSX's price experiences larger fluctuations and is considered to be riskier than MXMGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BBGSX	MXMGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.22%	2.53%	+1.69%
Volatility (6M) Calculated over the trailing 6-month period	14.48%	10.53%	+3.95%
Volatility (1Y) Calculated over the trailing 1-year period	18.86%	13.59%	+5.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.88%	19.05%	+2.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.98%	18.89%	+2.09%

BBGSX vs. MXMGX - Expense Ratio Comparison

BBGSX has a 0.38% expense ratio, which is lower than MXMGX's 1.02% expense ratio.

Dividends

BBGSX vs. MXMGX - Dividend Comparison

BBGSX has not paid dividends to shareholders, while MXMGX's dividend yield for the trailing twelve months is around 1.64%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
BBGSX Bridge Builder Small/Mid Cap Growth Fund	0.00%	0.00%	0.58%	0.32%	0.19%	18.00%	12.59%	4.07%	6.12%	1.09%	0.36%
MXMGX Great-West T. Rowe Price Mid Cap Growth Fund	1.64%	1.68%	3.66%	2.39%	2.66%	4.92%	2.74%	2.19%	6.13%	4.53%	0.00%

Frequently Asked Questions

Can I hold both BBGSX and MXMGX in my portfolio?

BBGSX and MXMGX have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BBGSX or MXMGX?

BBGSX has higher volatility (4.22%) compared to MXMGX (2.53%). In terms of maximum drawdown, BBGSX dropped -37.95% vs MXMGX's -60.97%.

Which has better risk-adjusted returns?

MXMGX currently has the higher Sharpe Ratio (0.25 vs 0.21), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.