BUIGX vs. CIHEX

Last updated Jun 4, 2026

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

Performance

BUIGX vs. CIHEX - Performance Comparison

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

Returns By Period

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

BUIGX

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

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%

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

BUIGX vs. CIHEX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
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%
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%

Correlation

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

Return for Risk

BUIGX vs. CIHEX — Risk / Return Rank

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

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

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

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.

BUIGX vs. CIHEX - Risk-Adjusted Trends Comparison

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

	BUIGX	CIHEX	Difference
Sharpe ratio Return per unit of total volatility	2.00	2.67	-0.67
Sortino ratio Return per unit of downside risk	2.85	3.83	-0.98
Omega ratio Gain probability vs. loss probability	1.47	1.50	-0.03
Calmar ratio Return relative to maximum drawdown	3.57	3.68	-0.10
Martin ratio Return relative to average drawdown	18.18	16.34	+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.

BUIGX vs. CIHEX - Sharpe Ratio Comparison

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

	BUIGX	CIHEX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.00	2.67	-0.67
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.82	0.93	-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

BUIGX vs. CIHEX - Drawdown Comparison

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

Drawdown Indicators

	BUIGX	CIHEX	Difference
Max Drawdown Largest peak-to-trough decline	-22.01%	-17.80%	-4.21%
Max Drawdown (1Y) Largest decline over 1 year	-5.12%	-4.68%	-0.44%
Max Drawdown (3Y) Largest decline over 3 years	-13.94%	-9.80%	-4.14%
Max Drawdown (5Y) Largest decline over 5 years	-15.22%	-15.77%	+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	1.00%	1.05%	-0.05%

Volatility

BUIGX vs. CIHEX - Volatility Comparison

The current volatility for Cboe Vest US Large Cap 10% Buffer Fund (BUIGX) is 1.03%, while Calamos Hedged Equity Fund (CIHEX) has a volatility of 1.63%. This indicates that BUIGX experiences smaller price fluctuations and is considered to be less risky than CIHEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

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

BUIGX vs. CIHEX - Expense Ratio Comparison

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

Dividends

BUIGX vs. CIHEX - Dividend Comparison

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

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 BUIGX and CIHEX in my portfolio?

With a correlation of 0.90, BUIGX and CIHEX 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, BUIGX or CIHEX?

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

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.