FIYY vs. MULL

Last updated Jul 4, 2026

FIYY (GraniteShares YieldBOOST 20Y+ Treasuries ETF) and MULL (GraniteShares 2x Long MU Daily ETF) are both exchange-traded funds - FIYY is a Derivative Income fund actively managed by GraniteShares, while MULL is a Leveraged Equities fund actively managed by GraniteShares. Both are actively managed. At a 0.02 correlation, their price movements are largely independent. FIYY charges 1.07%/yr vs 1.50%/yr for MULL.

Performance

FIYY vs. MULL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in GraniteShares YieldBOOST 20Y+ Treasuries ETF (FIYY) and GraniteShares 2x Long MU Daily ETF (MULL). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

FIYY

• 1D: 0.16%
• 1M: -0.25%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

MULL

• 1D: -11.74%
• 1M: -30.67%
• 6M: 495.12%
• YTD: 618.86%
• 1Y: 2,976.23%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FIYY vs. MULL - Yearly Performance Comparison

	2026 (YTD)
FIYY GraniteShares YieldBOOST 20Y+ Treasuries ETF	-1.90%
MULL GraniteShares 2x Long MU Daily ETF	119.65%

Correlation

The correlation between FIYY and MULL is 0.02, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 5, 2026	0.02

Return for Risk

FIYY vs. MULL — Risk / Return Rank

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

FIYY

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

MULL

MULL Risk / Return Rank: 98
MULL Sharpe Ratio Rank: 100
MULL Sortino Ratio Rank: 97
MULL Omega Ratio Rank: 96
MULL Calmar Ratio Rank: 100
MULL Martin Ratio Rank: 99

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.

FIYY vs. MULL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for GraniteShares YieldBOOST 20Y+ Treasuries ETF (FIYY) and GraniteShares 2x Long MU Daily ETF (MULL). 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.

	FIYY	MULL	Difference
Sharpe ratio: Return per unit of total volatility	—	20.12	—
Sortino ratio: Return per unit of downside risk	—	5.22	—
Omega ratio: Gain probability vs. loss probability	—	1.66	—
Calmar ratio: Return relative to maximum drawdown	—	57.42	—
Martin ratio: Return relative to average drawdown	—	187.84	—

Drawdowns

FIYY vs. MULL - Drawdown Comparison

The maximum FIYY drawdown since its inception was -2.42%, smaller than the maximum MULL drawdown of -72.29%. Use the drawdown chart below to compare losses from any high point for FIYY and MULL.

Drawdown Indicators

	FIYY	MULL	Difference
Max Drawdown Largest peak-to-trough decline	-2.42%	-72.29%	+69.87%
Max Drawdown (1Y) Largest decline over 1 year	—	-53.09%	—
Current Drawdown Current decline from peak	-2.02%	-39.92%	+37.90%
Average Drawdown Average peak-to-trough decline	-1.36%	-20.53%	+19.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	16.20%	—

Volatility

Volatility by Period

	FIYY	MULL	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	77.44%	—
Volatility (6M) Calculated over the trailing 6-month period	—	126.30%	—
Volatility (1Y) Calculated over the trailing 1-year period	5.29%	151.52%	-146.23%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.29%	145.26%	-139.97%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.29%	145.26%	-139.97%

FIYY vs. MULL - Expense Ratio Comparison

FIYY has a 1.07% expense ratio, which is lower than MULL's 1.50% expense ratio.

Dividends

FIYY vs. MULL - Dividend Comparison

FIYY's dividend yield for the trailing twelve months is around 1.09%, more than MULL's 0.05% yield.

Position	TTM	2025
FIYY GraniteShares YieldBOOST 20Y+ Treasuries ETF	1.09%	0.00%
MULL GraniteShares 2x Long MU Daily ETF	0.05%	0.39%

Frequently Asked Questions

Can I hold both FIYY and MULL in my portfolio?

FIYY and MULL have a correlation of 0.02, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, FIYY or MULL?

On fees, FIYY is cheaper at 1.07% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, FIYY or MULL?

FIYY is cheaper with a 1.07% expense ratio, compared with 1.50% for MULL.

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

FIYY has the higher dividend yield at 1.09%, compared with 0.05% for MULL.

What is the main difference between FIYY and MULL?

FIYY is categorized as Derivative Income, while MULL is Leveraged Equities. Their fees differ too: 1.07% for FIYY and 1.50% for MULL.