CIHEX vs. BUIGX

Last updated Jun 4, 2026

CIHEX (Calamos Hedged Equity Fund) and BUIGX (Cboe Vest US Large Cap 10% Buffer Fund) are both Options Trading funds. Over the past 5 years, CIHEX returned 8.45%/yr vs 9.40%/yr for BUIGX. Their correlation of 0.90 suggests significant overlap in exposure. CIHEX charges 0.91%/yr vs 0.95%/yr for BUIGX.

Performance

CIHEX vs. BUIGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Hedged Equity Fund (CIHEX) and Cboe Vest US Large Cap 10% Buffer Fund (BUIGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with CIHEX having a 6.67% return and BUIGX slightly lower at 6.52%.

CIHEX

• 1D: 0.00%
• 1M: 3.43%
• YTD: 6.67%
• 6M: 6.71%
• 1Y: 16.62%
• 3Y*: 13.73%
• 5Y*: 8.45%
• 10Y*: 8.60%

BUIGX

• 1D: 0.00%
• 1M: 2.54%
• YTD: 6.52%
• 6M: 7.05%
• 1Y: 17.73%
• 3Y*: 14.50%
• 5Y*: 9.40%
• 10Y*: —

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

CIHEX vs. BUIGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CIHEX Calamos Hedged Equity Fund	6.67%	11.36%	14.96%	15.88%	-11.11%	13.31%	9.66%	14.47%	0.87%	7.95%
BUIGX Cboe Vest US Large Cap 10% Buffer Fund	6.52%	11.51%	15.54%	19.05%	-9.88%	12.51%	10.57%	17.71%	-2.19%	11.41%

Correlation

The correlation between CIHEX and BUIGX is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.89
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017	0.90

The correlation between CIHEX and BUIGX has been stable across timeframes, ranging from 0.89 to 0.91 - a consistent structural relationship.

Return for Risk

CIHEX vs. BUIGX — Risk / Return Rank

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

CIHEX

CIHEX Risk / Return Rank: 81
CIHEX Sharpe Ratio Rank: 82
CIHEX Sortino Ratio Rank: 81
CIHEX Omega Ratio Rank: 76
CIHEX Calmar Ratio Rank: 80
CIHEX Martin Ratio Rank: 85

BUIGX

BUIGX Risk / Return Rank: 66
BUIGX Sharpe Ratio Rank: 46
BUIGX Sortino Ratio Rank: 45
BUIGX Omega Ratio Rank: 70
BUIGX Calmar Ratio Rank: 78
BUIGX Martin Ratio Rank: 90

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.

CIHEX vs. BUIGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Hedged Equity Fund (CIHEX) and Cboe Vest US Large Cap 10% Buffer Fund (BUIGX). 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.

	CIHEX	BUIGX	Difference
Sharpe ratio: Return per unit of total volatility	2.67	2.00	+0.67
Sortino ratio: Return per unit of downside risk	3.83	2.85	+0.98
Omega ratio: Gain probability vs. loss probability	1.50	1.47	+0.03
Calmar ratio: Return relative to maximum drawdown	3.68	3.57	+0.10
Martin ratio: Return relative to average drawdown	16.34	18.18	-1.84
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CIHEX vs. BUIGX - Sharpe Ratio Comparison

The current CIHEX Sharpe Ratio is 2.67, which is higher than the BUIGX Sharpe Ratio of 2.00. The chart below compares the historical Sharpe Ratios of CIHEX and BUIGX, 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

	CIHEX	BUIGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.67	2.00	+0.67
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.93	0.82	+0.11
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.92	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.82	0.82	0.00

Drawdowns

CIHEX vs. BUIGX - Drawdown Comparison

The maximum CIHEX drawdown since its inception was -17.80%, smaller than the maximum BUIGX drawdown of -22.01%. Use the drawdown chart below to compare losses from any high point for CIHEX and BUIGX.

Drawdown Indicators

	CIHEX	BUIGX	Difference
Max Drawdown Largest peak-to-trough decline	-17.80%	-22.01%	+4.21%
Max Drawdown (1Y) Largest decline over 1 year	-4.68%	-5.12%	+0.44%
Max Drawdown (3Y) Largest decline over 3 years	-9.80%	-13.94%	+4.14%
Max Drawdown (5Y) Largest decline over 5 years	-15.77%	-15.22%	-0.55%
Max Drawdown (10Y) Largest decline over 10 years	-17.80%	—	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-2.32%	-2.32%	0.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.05%	1.00%	+0.05%

Volatility

CIHEX vs. BUIGX - Volatility Comparison

Calamos Hedged Equity Fund (CIHEX) has a higher volatility of 1.63% compared to Cboe Vest US Large Cap 10% Buffer Fund (BUIGX) at 1.03%. This indicates that CIHEX's price experiences larger fluctuations and is considered to be riskier than BUIGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CIHEX	BUIGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.63%	1.03%	+0.60%
Volatility (6M) Calculated over the trailing 6-month period	4.76%	7.94%	-3.18%
Volatility (1Y) Calculated over the trailing 1-year period	6.46%	9.18%	-2.72%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.14%	11.53%	-2.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.39%	11.69%	-2.30%

CIHEX vs. BUIGX - Expense Ratio Comparison

CIHEX has a 0.91% expense ratio, which is lower than BUIGX's 0.95% expense ratio.

Dividends

CIHEX vs. BUIGX - Dividend Comparison

CIHEX's dividend yield for the trailing twelve months is around 0.31%, while BUIGX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BUIGX Cboe Vest US Large Cap 10% Buffer Fund	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.32%	0.68%	0.00%	0.00%	0.00%	0.00%
CIHEX Calamos Hedged Equity Fund	0.31%	0.33%	0.46%	0.69%	0.73%	0.44%	1.03%	0.99%	3.16%	0.85%	1.29%	1.69%

Frequently Asked Questions

Can I hold both CIHEX and BUIGX in my portfolio?

With a correlation of 0.90, CIHEX and BUIGX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, CIHEX or BUIGX?

CIHEX has higher volatility (1.63%) compared to BUIGX (1.03%). In terms of maximum drawdown, CIHEX dropped -17.80% vs BUIGX's -22.01%.

Which has better risk-adjusted returns?

CIHEX currently has the higher Sharpe Ratio (2.67 vs 2.00), 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.