CFNTX vs. CAUSX

Last updated Jun 24, 2026

CFNTX (Green California Tax-Free Income Fund) and CAUSX (Shelton Capital Management U.S. Government Securities Fund) are both mutual funds - CFNTX is a Municipal Bonds fund managed by Shelton Capital Management, while CAUSX is a Government Bonds fund managed by Shelton Capital Management. Over the past 10 years, CFNTX returned 1.54%/yr vs 0.65%/yr for CAUSX. A 0.57 correlation means they provide meaningful diversification when combined. CFNTX charges 0.76%/yr vs 0.75%/yr for CAUSX.

Performance

CFNTX vs. CAUSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Green California Tax-Free Income Fund (CFNTX) and Shelton Capital Management U.S. Government Securities Fund (CAUSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CFNTX achieves a 1.89% return, which is significantly higher than CAUSX's -0.38% return. Over the past 10 years, CFNTX has outperformed CAUSX with an annualized return of 1.54%, while CAUSX has yielded a comparatively lower 0.65% annualized return.

CFNTX

• 1D: 0.00%
• 1M: 2.18%
• YTD: 1.89%
• 6M: 2.06%
• 1Y: 5.84%
• 3Y*: 3.75%
• 5Y*: 1.25%
• 10Y*: 1.54%

CAUSX

• 1D: -0.33%
• 1M: 0.71%
• YTD: -0.38%
• 6M: -0.32%
• 1Y: 2.11%
• 3Y*: 2.55%
• 5Y*: 0.09%
• 10Y*: 0.65%

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

CFNTX vs. CAUSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CFNTX Green California Tax-Free Income Fund	1.89%	2.54%	1.13%	7.39%	-6.28%	-0.04%	3.22%	5.39%	0.96%	3.35%
CAUSX Shelton Capital Management U.S. Government Securities Fund	-0.38%	6.38%	-0.20%	3.83%	-7.74%	-2.99%	5.33%	4.98%	0.48%	0.91%

Correlation

The correlation between CFNTX and CAUSX is 0.50, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.50
Correlation (3Y) Calculated over the trailing 3-year period	0.59
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (10Y) Calculated over the trailing 10-year period	0.50
Correlation (All Time) Calculated using the full available price history since Jan 15, 1986	0.57

The correlation between CFNTX and CAUSX has been stable across timeframes, ranging from 0.50 to 0.59 - a consistent structural relationship.

Return for Risk

CFNTX vs. CAUSX — Risk / Return Rank

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

CFNTX

CFNTX Risk / Return Rank: 64
CFNTX Sharpe Ratio Rank: 74
CFNTX Sortino Ratio Rank: 76
CFNTX Omega Ratio Rank: 89
CFNTX Calmar Ratio Rank: 38
CFNTX Martin Ratio Rank: 40

CAUSX

CAUSX Risk / Return Rank: 7
CAUSX Sharpe Ratio Rank: 8
CAUSX Sortino Ratio Rank: 7
CAUSX Omega Ratio Rank: 7
CAUSX Calmar Ratio Rank: 7
CAUSX Martin Ratio Rank: 7

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.

CFNTX vs. CAUSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Green California Tax-Free Income Fund (CFNTX) and Shelton Capital Management U.S. Government Securities Fund (CAUSX). 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.

	CFNTX	CAUSX	Difference
Sharpe ratio: Return per unit of total volatility	2.30	0.58	+1.73
Sortino ratio: Return per unit of downside risk	3.36	0.87	+2.48
Omega ratio: Gain probability vs. loss probability	1.60	1.10	+0.50
Calmar ratio: Return relative to maximum drawdown	2.21	0.66	+1.55
Martin ratio: Return relative to average drawdown	8.27	1.75	+6.52

CFNTX vs. CAUSX - Sharpe Ratio Comparison

The current CFNTX Sharpe Ratio is 2.30, which is higher than the CAUSX Sharpe Ratio of 0.58. The chart below compares the historical Sharpe Ratios of CFNTX and CAUSX, 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

CFNTX vs. CAUSX - Drawdown Comparison

The maximum CFNTX drawdown since its inception was -16.08%, which is greater than CAUSX's maximum drawdown of -14.35%. Use the drawdown chart below to compare losses from any high point for CFNTX and CAUSX.

Drawdown Indicators

	CFNTX	CAUSX	Difference
Max Drawdown Largest peak-to-trough decline	-16.08%	-14.35%	-1.73%
Max Drawdown (1Y) Largest decline over 1 year	-2.70%	-3.87%	+1.17%
Max Drawdown (3Y) Largest decline over 3 years	-5.28%	-5.74%	+0.46%
Max Drawdown (5Y) Largest decline over 5 years	-9.99%	-12.17%	+2.18%
Max Drawdown (10Y) Largest decline over 10 years	-9.99%	-14.35%	+4.36%
Current Drawdown Current decline from peak	0.00%	-2.88%	+2.88%
Average Drawdown Average peak-to-trough decline	-2.09%	-3.20%	+1.11%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.72%	1.46%	-0.74%

Volatility

CFNTX vs. CAUSX - Volatility Comparison

The current volatility for Green California Tax-Free Income Fund (CFNTX) is 0.75%, while Shelton Capital Management U.S. Government Securities Fund (CAUSX) has a volatility of 1.26%. This indicates that CFNTX experiences smaller price fluctuations and is considered to be less risky than CAUSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CFNTX	CAUSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.75%	1.26%	-0.51%
Volatility (6M) Calculated over the trailing 6-month period	2.18%	3.25%	-1.07%
Volatility (1Y) Calculated over the trailing 1-year period	2.59%	4.46%	-1.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.28%	4.99%	-1.71%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.19%	4.07%	-0.88%

CFNTX vs. CAUSX - Expense Ratio Comparison

CFNTX has a 0.76% expense ratio, which is higher than CAUSX's 0.75% expense ratio.

Dividends

CFNTX vs. CAUSX - Dividend Comparison

CFNTX's dividend yield for the trailing twelve months is around 2.69%, less than CAUSX's 3.23% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CAUSX Shelton Capital Management U.S. Government Securities Fund	3.23%	4.55%	3.16%	3.08%	1.46%	1.13%	1.15%	1.42%	1.45%	1.41%	1.72%	1.38%
CFNTX Green California Tax-Free Income Fund	2.69%	2.38%	2.64%	5.32%	2.05%	1.95%	1.79%	2.53%	2.27%	2.52%	3.03%	2.40%

Frequently Asked Questions

Can I hold both CFNTX and CAUSX in my portfolio?

CFNTX and CAUSX have a correlation of 0.50, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CFNTX or CAUSX?

CAUSX has higher volatility (1.26%) compared to CFNTX (0.75%). In terms of maximum drawdown, CFNTX dropped -16.08% vs CAUSX's -14.35%.

Which has better risk-adjusted returns?

CFNTX currently has the higher Sharpe Ratio (2.30 vs 0.58), 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.