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NUKX vs. XYLD
Performance
Return for Risk
Drawdowns
Volatility
Dividends

NUKX vs. XYLD

Last updated Aug 2, 2026
Documentation

NUKX (Nicholas Nuclear Income ETF) and XYLD (Global X S&P 500 Covered Call ETF) are both Derivative Income funds. NUKX is actively managed, while XYLD is passively managed. Their 0.66 correlation means they have sometimes moved together and sometimes differently. NUKX charges 1.07%/yr vs 0.60%/yr for XYLD.

Performance

NUKX vs. XYLD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Nicholas Nuclear Income ETF (NUKX) and Global X S&P 500 Covered Call ETF (XYLD). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

NUKX

1D
-0.97%
1M
-7.63%
6M
—
YTD
—
1Y
—
3Y*
—
5Y*
—
10Y*
—
ALL TIME*
—

XYLD

1D
0.49%
1M
1.82%
6M
6.81%
YTD
8.05%
1Y
18.90%
3Y*
11.51%
5Y*
7.90%
10Y*
8.34%
ALL TIME*
8.37%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

PositionAvg. Volume Value (2W)Avg. Volume Value (1M)Avg. Volume Value (3M)

NUKX

Nicholas Nuclear Income ETF
$132.47K$169.16K$262.73K

XYLD

Global X S&P 500 Covered Call ETF
$36.93M$37.58M$32.35M

NUKX vs. XYLD - Yearly Performance Comparison

2026 (YTD)
NUKX
Nicholas Nuclear Income ETF		-22.51%
XYLD
Global X S&P 500 Covered Call ETF		5.93%

Correlation

The correlation between NUKX and XYLD is 0.66, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

Correlation
Correlation (All Time)
Calculated using the full available price history since Mar 3, 2026

0.66

NUKX vs. XYLD - Sectors Allocation Comparison

Sectors
NUKX
XYLD

Utilities

44.0%
2.2%

Energy

15.6%
3.0%

Financial Services

11.9%
11.6%

Industrials

6.9%
8.4%

Consumer Cyclical

4.2%
9.5%

Consumer Defensive

4.1%
4.5%

Basic Materials

-

1.7%

Communication Services

-

9.9%

Healthcare

-

8.9%

Real Estate

-

1.8%

Technology

-

38.5%

Utilities

NUKX
44.0%
XYLD
2.2%

Energy

NUKX
15.6%
XYLD
3.0%

Financial Services

NUKX
11.9%
XYLD
11.6%

Industrials

NUKX
6.9%
XYLD
8.4%

Consumer Cyclical

NUKX
4.2%
XYLD
9.5%

Consumer Defensive

NUKX
4.1%
XYLD
4.5%

Basic Materials

NUKX

-

XYLD
1.7%

Communication Services

NUKX

-

XYLD
9.9%

Healthcare

NUKX

-

XYLD
8.9%

Real Estate

NUKX

-

XYLD
1.8%

Technology

NUKX

-

XYLD
38.5%

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

Nicholas Nuclear Income ETF

Global X S&P 500 Covered Call ETF

Often compared with NUKX:
NUKX vs. BENJNUKX vs. AMDWNUKX vs. IBIDNUKX vs. BPHNUKX vs. ENFRNUKX vs. BUCKNUKX vs. PEPS
Often compared with XYLD:
XYLD vs. JEPIXYLD vs. QYLDXYLD vs. SPYXYLD vs. RYLDXYLD vs. XYLGXYLD vs. VOOXYLD vs. SCHD

Return for Risk

NUKX vs. XYLD — Risk / Return Rank

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

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

XYLD
XYLD Risk / Return Rank: 9393
Overall Rank
XYLD Sharpe Ratio Rank: 9393
Sharpe Ratio Rank
XYLD Sortino Ratio Rank: 9494
Sortino Ratio Rank
XYLD Omega Ratio Rank: 9595
Omega Ratio Rank
XYLD Calmar Ratio Rank: 8787
Calmar Ratio Rank
XYLD Martin Ratio Rank: 9494
Martin Ratio Rank
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.

NUKX vs. XYLD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Nicholas Nuclear Income ETF (NUKX) and Global X S&P 500 Covered Call ETF (XYLD). 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.

NUKXXYLDDifference
Sharpe ratioReturn per unit of total volatility

—

2.53

—

Sortino ratioReturn per unit of downside risk

—

3.60

—

Omega ratioGain probability vs. loss probability

—

1.56

—

Calmar ratioReturn relative to maximum drawdown

—

3.40

—

Martin ratioReturn relative to average drawdown

—

17.69

—

NUKX vs. XYLD - Sharpe Ratio Comparison

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Drawdowns

NUKX vs. XYLD - Drawdown Comparison

The maximum NUKX drawdown since its inception was -31.95%, roughly equal to the maximum XYLD drawdown of -33.46%. Use the drawdown chart below to compare losses from any high point for NUKX and XYLD.

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Drawdown Indicators

NUKXXYLDDifference

Max Drawdown

Largest peak-to-trough decline

-31.95%

-33.46%

+1.51%

Max Drawdown (1Y)

Largest decline over 1 year

—

-5.29%

—

Max Drawdown (3Y)

Largest decline over 3 years

—

-15.53%

—

Max Drawdown (5Y)

Largest decline over 5 years

—

-18.66%

—

Max Drawdown (10Y)

Largest decline over 10 years

—

-33.46%

—

Current Drawdown

Current decline from peak

-28.73%

0.00%

-28.73%

Average Drawdown

Average peak-to-trough decline

-13.27%

-3.68%

-9.59%

Ulcer Index

Depth and duration of drawdowns from previous peaks

—

1.02%

—

Volatility

NUKX vs. XYLD - Volatility Comparison

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Volatility by Period

NUKXXYLDDifference

Volatility (1M)

Calculated over the trailing 1-month period

—

1.92%

—

Volatility (6M)

Calculated over the trailing 6-month period

—

5.97%

—

Volatility (1Y)

Calculated over the trailing 1-year period

49.22%

7.13%

+42.09%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

49.22%

11.27%

+37.95%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

49.22%

14.15%

+35.07%

NUKX vs. XYLD - Expense Ratio Comparison

NUKX has a 1.07% expense ratio, which is higher than XYLD's 0.60% expense ratio.

Dividends

NUKX vs. XYLD - Dividend Comparison

NUKX's dividend yield for the trailing twelve months is around 6.83%, less than XYLD's 10.53% yield.

PositionTTM20252024202320222021202020192018201720162015
NUKX
Nicholas Nuclear Income ETF		6.83%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%0.00%
XYLD
Global X S&P 500 Covered Call ETF		10.53%10.51%11.54%10.51%13.43%9.07%7.93%5.76%7.12%5.18%3.23%4.65%

Frequently Asked Questions

NUKX and XYLD have a correlation of 0.66, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

On fees, XYLD is cheaper at 0.60% per year. The better choice depends on whether you care most about return, fees, risk, or income.

XYLD is cheaper with a 0.60% expense ratio, compared with 1.07% for NUKX.

XYLD has the higher dividend yield at 10.53%, compared with 6.83% for NUKX.

They also come from different issuers: Nicholas Wealth and Global X. Their fees differ too: 1.07% for NUKX and 0.60% for XYLD.

Portfolio Optimizer

Find the right allocation for NUKX and XYLD

Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.

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