GCBLX vs. GRSPX

Last updated Jun 5, 2026

GCBLX (Green Century Balanced Fund) and GRSPX (Greenspring Fund) are both Diversified Portfolio funds. Over the past 10 years, GCBLX returned 8.35%/yr vs 10.30%/yr for GRSPX. A 0.70 correlation means they provide meaningful diversification when combined. GCBLX charges 1.46%/yr vs 1.09%/yr for GRSPX.

Performance

GCBLX vs. GRSPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Green Century Balanced Fund (GCBLX) and Greenspring Fund (GRSPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, GCBLX achieves a 7.01% return, which is significantly lower than GRSPX's 21.22% return. Over the past 10 years, GCBLX has underperformed GRSPX with an annualized return of 8.35%, while GRSPX has yielded a comparatively higher 10.30% annualized return.

GCBLX

• 1D: -0.50%
• 1M: 3.19%
• YTD: 7.01%
• 6M: 6.79%
• 1Y: 13.73%
• 3Y*: 10.64%
• 5Y*: 5.36%
• 10Y*: 8.35%

GRSPX

• 1D: -0.30%
• 1M: 1.75%
• YTD: 21.22%
• 6M: 19.08%
• 1Y: 27.02%
• 3Y*: 17.89%
• 5Y*: 10.46%
• 10Y*: 10.30%

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

GCBLX vs. GRSPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GCBLX Green Century Balanced Fund	7.01%	8.58%	9.67%	11.78%	-16.19%	16.43%	15.97%	20.90%	-2.14%	12.78%
GRSPX Greenspring Fund	21.22%	6.12%	16.03%	11.95%	-8.62%	26.89%	3.81%	20.84%	-10.21%	7.84%

Correlation

The correlation between GCBLX and GRSPX is 0.63, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.63
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.81
Correlation (All Time) Calculated using the full available price history since Mar 17, 1992	0.70

The correlation between GCBLX and GRSPX shifts across timeframes, from 0.63 (1 year) to 0.81 (10 years), reflecting how their relationship changes across market environments.

Return for Risk

GCBLX vs. GRSPX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

GCBLX

GCBLX Risk / Return Rank: 39
GCBLX Sharpe Ratio Rank: 39
GCBLX Sortino Ratio Rank: 40
GCBLX Omega Ratio Rank: 39
GCBLX Calmar Ratio Rank: 32
GCBLX Martin Ratio Rank: 44

GRSPX

GRSPX Risk / Return Rank: 55
GRSPX Sharpe Ratio Rank: 45
GRSPX Sortino Ratio Rank: 44
GRSPX Omega Ratio Rank: 42
GRSPX Calmar Ratio Rank: 82
GRSPX Martin Ratio Rank: 62

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

GCBLX vs. GRSPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Green Century Balanced Fund (GCBLX) and Greenspring Fund (GRSPX). 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.

	GCBLX	GRSPX	Difference
Sharpe ratio: Return per unit of total volatility	1.76	1.92	-0.16
Sortino ratio: Return per unit of downside risk	2.60	2.73	-0.13
Omega ratio: Gain probability vs. loss probability	1.32	1.34	-0.02
Calmar ratio: Return relative to maximum drawdown	2.06	3.75	-1.69
Martin ratio: Return relative to average drawdown	9.09	12.05	-2.95
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GCBLX vs. GRSPX - Sharpe Ratio Comparison

The current GCBLX Sharpe Ratio is 1.76, which is comparable to the GRSPX Sharpe Ratio of 1.92. The chart below compares the historical Sharpe Ratios of GCBLX and GRSPX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	GCBLX	GRSPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.76	1.92	-0.16
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.47	0.69	-0.22
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.72	0.68	+0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.48	0.70	-0.22

Drawdowns

GCBLX vs. GRSPX - Drawdown Comparison

The maximum GCBLX drawdown since its inception was -64.30%, which is greater than GRSPX's maximum drawdown of -35.67%. Use the drawdown chart below to compare losses from any high point for GCBLX and GRSPX.

Drawdown Indicators

	GCBLX	GRSPX	Difference
Max Drawdown Largest peak-to-trough decline	-64.30%	-35.67%	-28.63%
Max Drawdown (1Y) Largest decline over 1 year	-6.81%	-7.97%	+1.16%
Max Drawdown (3Y) Largest decline over 3 years	-13.03%	-19.33%	+6.30%
Max Drawdown (5Y) Largest decline over 5 years	-21.88%	-19.33%	-2.55%
Max Drawdown (10Y) Largest decline over 10 years	-22.38%	-35.07%	+12.69%
Current Drawdown Current decline from peak	-0.50%	-0.30%	-0.20%
Average Drawdown Average peak-to-trough decline	-14.56%	-4.81%	-9.75%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.54%	2.39%	-0.85%

Volatility

GCBLX vs. GRSPX - Volatility Comparison

The current volatility for Green Century Balanced Fund (GCBLX) is 2.32%, while Greenspring Fund (GRSPX) has a volatility of 5.51%. This indicates that GCBLX experiences smaller price fluctuations and is considered to be less risky than GRSPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GCBLX	GRSPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.32%	5.51%	-3.19%
Volatility (6M) Calculated over the trailing 6-month period	6.30%	11.73%	-5.43%
Volatility (1Y) Calculated over the trailing 1-year period	7.98%	15.59%	-7.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.35%	15.57%	-4.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.59%	15.35%	-3.76%

GCBLX vs. GRSPX - Expense Ratio Comparison

GCBLX has a 1.46% expense ratio, which is higher than GRSPX's 1.09% expense ratio.

Dividends

GCBLX vs. GRSPX - Dividend Comparison

GCBLX's dividend yield for the trailing twelve months is around 4.54%, less than GRSPX's 7.76% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GCBLX Green Century Balanced Fund	4.54%	4.86%	7.00%	3.02%	1.88%	3.99%	3.61%	1.92%	2.36%	1.29%	2.14%	2.97%
GRSPX Greenspring Fund	7.76%	9.40%	7.14%	6.84%	8.04%	7.69%	2.39%	7.89%	11.05%	9.63%	6.81%	5.34%

Frequently Asked Questions

Can I hold both GCBLX and GRSPX in my portfolio?

GCBLX and GRSPX have a correlation of 0.63, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, GCBLX or GRSPX?

GRSPX has higher volatility (5.51%) compared to GCBLX (2.32%). In terms of maximum drawdown, GCBLX dropped -64.30% vs GRSPX's -35.67%.

Which has better risk-adjusted returns?

GRSPX currently has the higher Sharpe Ratio (1.92 vs 1.76), 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.