CIHEX vs. BUIGX

Last updated Aug 1, 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 7.82%/yr vs 8.93%/yr for BUIGX. Their correlation of 0.90 means they have usually moved in the same direction. 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

In the year-to-date period, CIHEX achieves a 5.57% return, which is significantly lower than BUIGX's 6.57% return.

CIHEX

• 1D: 0.75%
• 1M: -0.15%
• 6M: 4.59%
• YTD: 5.57%
• 1Y: 12.22%
• 3Y*: 12.00%
• 5Y*: 7.82%
• 10Y*: 8.28%
• ALL TIME*: 7.43%

BUIGX

• 1D: 1.02%
• 1M: 0.04%
• 6M: 5.58%
• YTD: 6.57%
• 1Y: 14.06%
• 3Y*: 12.43%
• 5Y*: 8.93%
• 10Y*: —
• ALL TIME*: 9.34%

*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)
BUIGX Cboe Vest US Large Cap 10% Buffer Fund	$0.00	$0.00	$0.00
CIHEX Calamos Hedged Equity Fund	$0.00	$0.00	$0.00

CIHEX vs. BUIGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CIHEX Calamos Hedged Equity Fund	5.57%	11.36%	14.96%	15.88%	-11.11%	13.31%	9.66%	14.47%	0.87%	8.37%
BUIGX Cboe Vest US Large Cap 10% Buffer Fund	6.57%	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, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.90
Correlation (3Y) Balances recent behavior with more history.	0.89
Correlation (5Y) Shows whether the relationship held over a longer period.	0.92
Correlation (All Time) Calculated using the full available price history since Jan 3, 2017	0.90

The correlation between CIHEX and BUIGX has been stable across timeframes, ranging from 0.89 to 0.92 - a consistent structural relationship.

Return for Risk

CIHEX vs. BUIGX — Risk / Return Rank

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

CIHEX

CIHEX Risk / Return Rank: 74
CIHEX Sharpe Ratio Rank: 72
CIHEX Sortino Ratio Rank: 70
CIHEX Omega Ratio Rank: 69
CIHEX Calmar Ratio Rank: 76
CIHEX Martin Ratio Rank: 81

BUIGX

BUIGX Risk / Return Rank: 67
BUIGX Sharpe Ratio Rank: 50
BUIGX Sortino Ratio Rank: 51
BUIGX Omega Ratio Rank: 70
BUIGX Calmar Ratio Rank: 76
BUIGX Martin Ratio Rank: 90

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.

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.

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.

	CIHEX	BUIGX	Difference
Sharpe ratio: Return per unit of total volatility	1.67	1.36	+0.31
Sortino ratio: Return per unit of downside risk	2.36	1.97	+0.39
Omega ratio: Gain probability vs. loss probability	1.30	1.31	-0.01
Calmar ratio: Return relative to maximum drawdown	2.46	2.48	-0.02
Martin ratio: Return relative to average drawdown	9.94	12.23	-2.29

CIHEX vs. BUIGX - Sharpe Ratio Comparison

The current CIHEX Sharpe Ratio is 1.67, which is comparable to the BUIGX Sharpe Ratio of 1.36. 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.

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	-1.03%	-0.67%	-0.36%
Average Drawdown Average peak-to-trough decline	-2.30%	-2.29%	-0.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.16%	1.04%	+0.12%

Volatility

CIHEX vs. BUIGX - Volatility Comparison

The current volatility for Calamos Hedged Equity Fund (CIHEX) is 1.73%, while Cboe Vest US Large Cap 10% Buffer Fund (BUIGX) has a volatility of 1.97%. This indicates that CIHEX experiences smaller price fluctuations and is considered to be less risky 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	1.73%	1.97%	-0.24%
Volatility (6M) Calculated over the trailing 6-month period	5.35%	5.79%	-0.44%
Volatility (1Y) Calculated over the trailing 1-year period	6.92%	9.38%	-2.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.21%	11.60%	-2.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.40%	11.64%	-2.24%

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 0.30%, 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	0.30%	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?

CIHEX and BUIGX have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CIHEX or BUIGX?

BUIGX has higher volatility (1.97%) compared to CIHEX (1.73%). 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 (1.67 vs 1.36), 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.