SISEX vs. CFNTX

Last updated Jun 23, 2026

SISEX (Shelton International Select Equity Fund) and CFNTX (Green California Tax-Free Income Fund) are both mutual funds - SISEX is a Foreign Large Cap Equities fund managed by Shelton Capital Management, while CFNTX is a Municipal Bonds fund managed by Shelton Capital Management. Over the past 5 years, SISEX returned 7.45%/yr vs 1.23%/yr for CFNTX. At a 0.07 correlation, their price movements are largely independent. SISEX charges 0.99%/yr vs 0.76%/yr for CFNTX.

Performance

SISEX vs. CFNTX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Shelton International Select Equity Fund (SISEX) and Green California Tax-Free Income Fund (CFNTX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SISEX achieves a 13.68% return, which is significantly higher than CFNTX's 1.89% return.

SISEX

• 1D: 0.03%
• 1M: -0.47%
• YTD: 13.68%
• 6M: 13.90%
• 1Y: 28.51%
• 3Y*: 15.75%
• 5Y*: 7.45%
• 10Y*: —

CFNTX

• 1D: 0.09%
• 1M: 2.18%
• YTD: 1.89%
• 6M: 2.06%
• 1Y: 5.94%
• 3Y*: 3.78%
• 5Y*: 1.23%
• 10Y*: 1.57%

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

SISEX vs. CFNTX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SISEX Shelton International Select Equity Fund	13.68%	30.66%	3.67%	13.97%	-19.29%	6.23%	18.07%	22.53%	-13.16%	34.49%
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%

Correlation

The correlation between SISEX and CFNTX is 0.27, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.27
Correlation (3Y) Calculated over the trailing 3-year period	0.21
Correlation (5Y) Calculated over the trailing 5-year period	0.19
Correlation (All Time) Calculated using the full available price history since Jan 3, 2017	0.07

Over the past year, SISEX and CFNTX have become more correlated (0.27) than their long-term average of 0.07, meaning their price movements have been converging.

Return for Risk

SISEX vs. CFNTX — Risk / Return Rank

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

SISEX

SISEX Risk / Return Rank: 45
SISEX Sharpe Ratio Rank: 48
SISEX Sortino Ratio Rank: 48
SISEX Omega Ratio Rank: 48
SISEX Calmar Ratio Rank: 41
SISEX Martin Ratio Rank: 42

CFNTX

CFNTX Risk / Return Rank: 65
CFNTX Sharpe Ratio Rank: 76
CFNTX Sortino Ratio Rank: 78
CFNTX Omega Ratio Rank: 90
CFNTX Calmar Ratio Rank: 39
CFNTX Martin Ratio Rank: 42

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.

SISEX vs. CFNTX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Shelton International Select Equity Fund (SISEX) and Green California Tax-Free Income Fund (CFNTX). 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.

	SISEX	CFNTX	Difference
Sharpe ratio: Return per unit of total volatility	1.89	2.34	-0.45
Sortino ratio: Return per unit of downside risk	2.68	3.41	-0.73
Omega ratio: Gain probability vs. loss probability	1.35	1.61	-0.26
Calmar ratio: Return relative to maximum drawdown	2.31	2.25	+0.07
Martin ratio: Return relative to average drawdown	8.47	8.42	+0.06

SISEX vs. CFNTX - Sharpe Ratio Comparison

The current SISEX Sharpe Ratio is 1.89, which is comparable to the CFNTX Sharpe Ratio of 2.34. The chart below compares the historical Sharpe Ratios of SISEX and CFNTX, 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

SISEX vs. CFNTX - Drawdown Comparison

The maximum SISEX drawdown since its inception was -32.68%, which is greater than CFNTX's maximum drawdown of -16.08%. Use the drawdown chart below to compare losses from any high point for SISEX and CFNTX.

Drawdown Indicators

	SISEX	CFNTX	Difference
Max Drawdown Largest peak-to-trough decline	-32.68%	-16.08%	-16.60%
Max Drawdown (1Y) Largest decline over 1 year	-11.94%	-2.70%	-9.24%
Max Drawdown (3Y) Largest decline over 3 years	-14.30%	-5.28%	-9.02%
Max Drawdown (5Y) Largest decline over 5 years	-32.68%	-9.99%	-22.69%
Max Drawdown (10Y) Largest decline over 10 years	—	-9.99%	—
Current Drawdown Current decline from peak	-1.65%	0.00%	-1.65%
Average Drawdown Average peak-to-trough decline	-7.47%	-2.10%	-5.37%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.26%	0.72%	+2.54%

Volatility

SISEX vs. CFNTX - Volatility Comparison

Shelton International Select Equity Fund (SISEX) has a higher volatility of 4.62% compared to Green California Tax-Free Income Fund (CFNTX) at 0.76%. This indicates that SISEX's price experiences larger fluctuations and is considered to be riskier than CFNTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SISEX	CFNTX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.62%	0.76%	+3.86%
Volatility (6M) Calculated over the trailing 6-month period	12.30%	2.18%	+10.12%
Volatility (1Y) Calculated over the trailing 1-year period	14.59%	2.59%	+12.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.33%	3.28%	+12.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.45%	3.19%	+12.26%

SISEX vs. CFNTX - Expense Ratio Comparison

SISEX has a 0.99% expense ratio, which is higher than CFNTX's 0.76% expense ratio.

Dividends

SISEX vs. CFNTX - Dividend Comparison

SISEX's dividend yield for the trailing twelve months is around 1.56%, less than CFNTX's 2.69% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
SISEX Shelton International Select Equity Fund	1.56%	1.77%	3.73%	1.83%	5.50%	0.65%	0.80%	2.09%	1.13%	1.88%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SISEX and CFNTX in my portfolio?

SISEX and CFNTX have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SISEX or CFNTX?

SISEX has higher volatility (4.62%) compared to CFNTX (0.76%). In terms of maximum drawdown, SISEX dropped -32.68% vs CFNTX's -16.08%.

Which has better risk-adjusted returns?

CFNTX currently has the higher Sharpe Ratio (2.34 vs 1.89), 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.