BGGSX vs. VPMCX

Last updated Aug 5, 2026

BGGSX (Baillie Gifford U.S. Equity Growth Fund) and VPMCX (Vanguard PRIMECAP Fund Investor Shares) are both Large Cap Growth Equities funds. Over the past 5 years, BGGSX returned -5.95%/yr vs 14.92%/yr for VPMCX. Their 0.70 correlation means they have sometimes moved together and sometimes differently. BGGSX charges 0.75%/yr vs 0.35%/yr for VPMCX.

Performance

BGGSX vs. VPMCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Baillie Gifford U.S. Equity Growth Fund (BGGSX) and Vanguard PRIMECAP Fund Investor Shares (VPMCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BGGSX achieves a -3.77% return, which is significantly lower than VPMCX's 21.86% return.

BGGSX

• 1D: 2.67%
• 1M: -1.61%
• 6M: 4.20%
• YTD: -3.77%
• 1Y: -9.16%
• 3Y*: 14.49%
• 5Y*: -5.95%
• 10Y*: —
• ALL TIME*: 13.20%

VPMCX

• 1D: 0.95%
• 1M: -3.00%
• 6M: 15.94%
• YTD: 21.86%
• 1Y: 46.33%
• 3Y*: 24.73%
• 5Y*: 14.92%
• 10Y*: 16.58%
• ALL TIME*: 15.28%

*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)
BGGSX Baillie Gifford U.S. Equity Growth Fund	$0.00	$0.00	$0.00
VPMCX Vanguard PRIMECAP Fund Investor Shares	$0.00	$0.00	$0.00

BGGSX vs. VPMCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BGGSX Baillie Gifford U.S. Equity Growth Fund	-3.77%	10.25%	30.44%	45.93%	-52.50%	-11.13%	125.42%	30.00%	8.31%	16.54%
VPMCX Vanguard PRIMECAP Fund Investor Shares	21.86%	29.60%	13.23%	28.16%	-15.22%	21.64%	17.16%	27.78%	-1.99%	16.48%

Correlation

The correlation between BGGSX and VPMCX is 0.54, 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.	0.54
Correlation (3Y) Balances recent behavior with more history.	0.67
Correlation (5Y) Shows whether the relationship held over a longer period.	0.71
Correlation (All Time) Calculated using the full available price history since Apr 28, 2017	0.70

The correlation between BGGSX and VPMCX shifts across timeframes, from 0.54 (1 year) to 0.71 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

BGGSX vs. VPMCX — Risk / Return Rank

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

BGGSX

BGGSX Risk / Return Rank: 2
BGGSX Sharpe Ratio Rank: 2
BGGSX Sortino Ratio Rank: 2
BGGSX Omega Ratio Rank: 2
BGGSX Calmar Ratio Rank: 2
BGGSX Martin Ratio Rank: 2

VPMCX

VPMCX Risk / Return Rank: 93
VPMCX Sharpe Ratio Rank: 95
VPMCX Sortino Ratio Rank: 92
VPMCX Omega Ratio Rank: 88
VPMCX Calmar Ratio Rank: 94
VPMCX Martin Ratio Rank: 94

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.

BGGSX vs. VPMCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Baillie Gifford U.S. Equity Growth Fund (BGGSX) and Vanguard PRIMECAP Fund Investor Shares (VPMCX). 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.

	BGGSX	VPMCX	Difference
Sharpe ratio: Return per unit of total volatility	-0.29	2.57	-2.86
Sortino ratio: Return per unit of downside risk	-0.25	3.45	-3.70
Omega ratio: Gain probability vs. loss probability	0.97	1.45	-0.48
Calmar ratio: Return relative to maximum drawdown	-0.26	4.15	-4.41
Martin ratio: Return relative to average drawdown	-0.50	15.31	-15.82

BGGSX vs. VPMCX - Sharpe Ratio Comparison

The current BGGSX Sharpe Ratio is -0.29, which is lower than the VPMCX Sharpe Ratio of 2.57. The chart below compares the historical Sharpe Ratios of BGGSX and VPMCX, 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

BGGSX vs. VPMCX - Drawdown Comparison

The maximum BGGSX drawdown since its inception was -68.76%, which is greater than VPMCX's maximum drawdown of -50.45%. Use the drawdown chart below to compare losses from any high point for BGGSX and VPMCX.

Drawdown Indicators

	BGGSX	VPMCX	Difference
Max Drawdown Largest peak-to-trough decline	-68.76%	-50.45%	-18.31%
Max Drawdown (1Y) Largest decline over 1 year	-26.08%	-11.73%	-14.35%
Max Drawdown (3Y) Largest decline over 3 years	-30.87%	-20.56%	-10.31%
Max Drawdown (5Y) Largest decline over 5 years	-67.64%	-25.25%	-42.39%
Max Drawdown (10Y) Largest decline over 10 years	—	-32.65%	—
Current Drawdown Current decline from peak	-29.66%	-6.60%	-23.06%
Average Drawdown Average peak-to-trough decline	-25.26%	-7.39%	-17.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.18%	3.17%	+10.01%

Volatility

BGGSX vs. VPMCX - Volatility Comparison

Baillie Gifford U.S. Equity Growth Fund (BGGSX) has a higher volatility of 6.25% compared to Vanguard PRIMECAP Fund Investor Shares (VPMCX) at 5.84%. This indicates that BGGSX's price experiences larger fluctuations and is considered to be riskier than VPMCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BGGSX	VPMCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.25%	5.84%	+0.41%
Volatility (6M) Calculated over the trailing 6-month period	18.05%	16.14%	+1.91%
Volatility (1Y) Calculated over the trailing 1-year period	22.94%	19.02%	+3.92%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.28%	18.81%	+16.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.06%	19.40%	+12.66%

BGGSX vs. VPMCX - Expense Ratio Comparison

BGGSX has a 0.75% expense ratio, which is higher than VPMCX's 0.35% expense ratio.

Dividends

BGGSX vs. VPMCX - Dividend Comparison

BGGSX has not paid dividends to shareholders, while VPMCX's dividend yield for the trailing twelve months is around 13.42%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BGGSX Baillie Gifford U.S. Equity Growth Fund	0.00%	0.00%	0.00%	0.00%	16.38%	2.61%	3.29%	1.35%	2.02%	0.00%	0.00%	0.00%
VPMCX Vanguard PRIMECAP Fund Investor Shares	13.42%	16.36%	6.62%	7.16%	9.85%	10.08%	9.74%	7.15%	8.32%	4.53%	5.05%	5.91%

Frequently Asked Questions

Can I hold both BGGSX and VPMCX in my portfolio?

BGGSX and VPMCX have a correlation of 0.54, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BGGSX or VPMCX?

BGGSX has higher volatility (6.25%) compared to VPMCX (5.84%). In terms of maximum drawdown, BGGSX dropped -68.76% vs VPMCX's -50.45%.

Which has better risk-adjusted returns?

VPMCX currently has the higher Sharpe Ratio (2.57 vs -0.29), 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.