LIMI vs. SPTU

Last updated Jun 4, 2026

LIMI (Themes Lithium & Battery Metal Miners ETF) and SPTU (State Street SPDR Portfolio Ultra Short T-Bill ETF) are both exchange-traded funds - LIMI is a Commodity Producers Equities fund tracking the BITA Global Lithium and Battery Metals Select Index, while SPTU is a Ultrashort Bond fund tracking the ICE BofA US Treasury Bill Index. Both are passively managed. At a correlation of -0.08, they often move in opposite directions. LIMI charges 0.35%/yr vs 0.05%/yr for SPTU.

Performance

LIMI vs. SPTU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Themes Lithium & Battery Metal Miners ETF (LIMI) and State Street SPDR Portfolio Ultra Short T-Bill ETF (SPTU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, LIMI achieves a 19.24% return, which is significantly higher than SPTU's 1.48% return.

LIMI

• 1D: -2.97%
• 1M: -7.76%
• YTD: 19.24%
• 6M: 32.07%
• 1Y: 160.78%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SPTU

• 1D: 0.00%
• 1M: 0.31%
• YTD: 1.48%
• 6M: 1.81%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

LIMI vs. SPTU - Yearly Performance Comparison

	2026 (YTD)	2025
LIMI Themes Lithium & Battery Metal Miners ETF	19.24%	17.57%
SPTU State Street SPDR Portfolio Ultra Short T-Bill ETF	1.48%	0.92%

Correlation

The correlation between LIMI and SPTU is -0.08, 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 Oct 9, 2025	-0.08

Return for Risk

LIMI vs. SPTU — Risk / Return Rank

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

LIMI

LIMI Risk / Return Rank: 89
LIMI Sharpe Ratio Rank: 94
LIMI Sortino Ratio Rank: 85
LIMI Omega Ratio Rank: 81
LIMI Calmar Ratio Rank: 94
LIMI Martin Ratio Rank: 91

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.

LIMI vs. SPTU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Themes Lithium & Battery Metal Miners ETF (LIMI) and State Street SPDR Portfolio Ultra Short T-Bill ETF (SPTU). 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.

	LIMI	SPTU	Difference
Sharpe ratio: Return per unit of total volatility	3.71	—	—
Sortino ratio: Return per unit of downside risk	3.82	—	—
Omega ratio: Gain probability vs. loss probability	1.48	—	—
Calmar ratio: Return relative to maximum drawdown	7.03	—	—
Martin ratio: Return relative to average drawdown	21.57	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	LIMI	SPTU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.71	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.50	11.82	-10.32

Drawdowns

LIMI vs. SPTU - Drawdown Comparison

The maximum LIMI drawdown since its inception was -43.77%, which is greater than SPTU's maximum drawdown of -0.04%. Use the drawdown chart below to compare losses from any high point for LIMI and SPTU.

Drawdown Indicators

	LIMI	SPTU	Difference
Max Drawdown Largest peak-to-trough decline	-43.77%	-0.04%	-43.73%
Max Drawdown (1Y) Largest decline over 1 year	-23.00%	—	—
Current Drawdown Current decline from peak	-11.69%	0.00%	-11.69%
Average Drawdown Average peak-to-trough decline	-13.02%	-0.00%	-13.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.48%	—	—

Volatility

Volatility by Period

	LIMI	SPTU	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.74%	—	—
Volatility (6M) Calculated over the trailing 6-month period	29.23%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	43.66%	0.32%	+43.34%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	41.41%	0.32%	+41.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	41.41%	0.32%	+41.09%

LIMI vs. SPTU - Expense Ratio Comparison

LIMI has a 0.35% expense ratio, which is higher than SPTU's 0.05% expense ratio.

Dividends

LIMI vs. SPTU - Dividend Comparison

LIMI's dividend yield for the trailing twelve months is around 0.45%, less than SPTU's 2.36% yield.

Position	TTM	2025	2024
LIMI Themes Lithium & Battery Metal Miners ETF	0.45%	0.54%	8.14%
SPTU State Street SPDR Portfolio Ultra Short T-Bill ETF	2.36%	0.89%	0.00%

Frequently Asked Questions

Can I hold both LIMI and SPTU in my portfolio?

LIMI and SPTU have a correlation of -0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, LIMI or SPTU?

On fees, SPTU is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, LIMI or SPTU?

SPTU is cheaper with a 0.05% expense ratio, compared with 0.35% for LIMI.

Which ETF pays a higher dividend yield, LIMI or SPTU?

SPTU has the higher dividend yield at 2.36%, compared with 0.45% for LIMI.

What is the main difference between LIMI and SPTU?

LIMI is categorized as Commodity Producers Equities, while SPTU is Ultrashort Bond. LIMI tracks BITA Global Lithium and Battery Metals Select Index, while SPTU tracks ICE BofA US Treasury Bill Index. They also come from different issuers: Themes and State Street. Their fees differ too: 0.35% for LIMI and 0.05% for SPTU.