NUKX vs. FIYY

Last updated Jul 14, 2026

NUKX (Nicholas Nuclear Income ETF) and FIYY (GraniteShares YieldBOOST 20Y+ Treasuries ETF) are both Derivative Income funds. Both are actively managed. At a 0.40 correlation, their price movements are largely independent. Both charge a 1.07% expense ratio.

Performance

NUKX vs. FIYY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Nicholas Nuclear Income ETF (NUKX) and GraniteShares YieldBOOST 20Y+ Treasuries ETF (FIYY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

NUKX

• 1D: -4.10%
• 1M: -5.88%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

FIYY

• 1D: -0.07%
• 1M: -0.64%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

NUKX vs. FIYY - Yearly Performance Comparison

	2026 (YTD)
NUKX Nicholas Nuclear Income ETF	-22.54%
FIYY GraniteShares YieldBOOST 20Y+ Treasuries ETF	-2.01%

Correlation

The correlation between NUKX and FIYY is 0.40, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 5, 2026	0.40

Return for Risk

NUKX vs. FIYY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Nicholas Nuclear Income ETF (NUKX) and GraniteShares YieldBOOST 20Y+ Treasuries ETF (FIYY). 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.

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

Drawdowns

NUKX vs. FIYY - Drawdown Comparison

The maximum NUKX drawdown since its inception was -26.61%, which is greater than FIYY's maximum drawdown of -2.51%. Use the drawdown chart below to compare losses from any high point for NUKX and FIYY.

Drawdown Indicators

	NUKX	FIYY	Difference
Max Drawdown Largest peak-to-trough decline	-26.61%	-2.51%	-24.10%
Current Drawdown Current decline from peak	-26.61%	-2.13%	-24.48%
Average Drawdown Average peak-to-trough decline	-10.97%	-1.47%	-9.50%

Volatility

Volatility by Period

	NUKX	FIYY	Difference
Volatility (1Y) Calculated over the trailing 1-year period	49.87%	5.08%	+44.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	49.87%	5.08%	+44.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	49.87%	5.08%	+44.79%

NUKX vs. FIYY - Expense Ratio Comparison

Both NUKX and FIYY have an expense ratio of 1.07%.

Dividends

NUKX vs. FIYY - Dividend Comparison

NUKX's dividend yield for the trailing twelve months is around 5.89%, more than FIYY's 1.13% yield.

Position	TTM
FIYY GraniteShares YieldBOOST 20Y+ Treasuries ETF	1.13%
NUKX Nicholas Nuclear Income ETF	5.89%

Frequently Asked Questions

Can I hold both NUKX and FIYY in my portfolio?

NUKX and FIYY have a correlation of 0.40, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, NUKX or FIYY?

Both ETFs have the same 1.07% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, NUKX or FIYY?

NUKX and FIYY have the same expense ratio: 1.07% per year.

Which ETF pays a higher dividend yield, NUKX or FIYY?

NUKX has the higher dividend yield at 5.89%, compared with 1.13% for FIYY.

What is the main difference between NUKX and FIYY?

They also come from different issuers: Nicholas Wealth and GraniteShares.