SKF vs. AUMI

Last updated Apr 2, 2026

Compare and contrast key facts about ProShares UltraShort Financials (SKF) and Themes Gold Miners ETF (AUMI).

SKF and AUMI are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. SKF is a passively managed fund by ProShares that tracks the performance of the DJ Global United States (All) / Financials -IND (-200%). It was launched on Jan 30, 2007. AUMI is a passively managed fund by Themes that tracks the performance of the Solactive Global Pure Gold Miners Index. It was launched on Dec 12, 2023. Both SKF and AUMI are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

SKF vs. AUMI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares UltraShort Financials (SKF) and Themes Gold Miners ETF (AUMI). The values are adjusted to include any dividend payments, if applicable.

SKF vs. AUMI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
SKF ProShares UltraShort Financials	21.76%	-23.99%	-36.29%	-2.82%
AUMI Themes Gold Miners ETF	10.53%	164.18%	30.61%	4.25%

Returns By Period

In the year-to-date period, SKF achieves a 21.76% return, which is significantly higher than AUMI's 10.53% return.

SKF

• 1D: 0.06%
• 1M: 6.91%
• YTD: 21.76%
• 6M: 16.27%
• 1Y: -1.91%
• 3Y*: -23.89%
• 5Y*: -17.64%
• 10Y*: -26.15%

AUMI

• 1D: 5.17%
• 1M: -16.46%
• YTD: 10.53%
• 6M: 26.21%
• 1Y: 116.15%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SKF vs. AUMI - Expense Ratio Comparison

SKF has a 0.95% expense ratio, which is higher than AUMI's 0.35% expense ratio.

SKF

ProShares UltraShort Financials

AUMI

Themes Gold Miners ETF

Return for Risk

SKF vs. AUMI — Risk / Return Rank

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

SKF

SKF Risk / Return Rank: 12
SKF Sharpe Ratio Rank: 10
SKF Sortino Ratio Rank: 13
SKF Omega Ratio Rank: 13
SKF Calmar Ratio Rank: 11
SKF Martin Ratio Rank: 11

AUMI

AUMI Risk / Return Rank: 91
AUMI Sharpe Ratio Rank: 94
AUMI Sortino Ratio Rank: 89
AUMI Omega Ratio Rank: 87
AUMI Calmar Ratio Rank: 93
AUMI 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.

SKF vs. AUMI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort Financials (SKF) and Themes Gold Miners ETF (AUMI). 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.

	SKF	AUMI	Difference
Sharpe ratio Return per unit of total volatility	-0.05	2.35	-2.40
Sortino ratio Return per unit of downside risk	0.22	2.57	-2.35
Omega ratio Gain probability vs. loss probability	1.03	1.36	-0.34
Calmar ratio Return relative to maximum drawdown	-0.04	3.66	-3.70
Martin ratio Return relative to average drawdown	-0.05	12.93	-12.99
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SKF vs. AUMI - Sharpe Ratio Comparison

The current SKF Sharpe Ratio is -0.05, which is lower than the AUMI Sharpe Ratio of 2.35. The chart below compares the historical Sharpe Ratios of SKF and AUMI, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SKF	AUMI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.05	2.35	-2.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.49	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.64	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.50	2.01	-2.51

Correlation

The correlation between SKF and AUMI is -0.11. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.

Dividends

SKF vs. AUMI - Dividend Comparison

SKF's dividend yield for the trailing twelve months is around 3.88%, more than AUMI's 0.78% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018
SKF ProShares UltraShort Financials	3.88%	5.61%	7.94%	3.93%	0.03%	0.00%	0.11%	1.29%	0.06%
AUMI Themes Gold Miners ETF	0.78%	0.86%	1.84%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

SKF vs. AUMI - Drawdown Comparison

The maximum SKF drawdown since its inception was -99.96%, which is greater than AUMI's maximum drawdown of -31.88%. Use the drawdown chart below to compare losses from any high point for SKF and AUMI.

Drawdown Indicators

	SKF	AUMI	Difference
Max Drawdown Largest peak-to-trough decline	-99.96%	-31.88%	-68.08%
Max Drawdown (1Y) Largest decline over 1 year	-39.47%	-31.88%	-7.59%
Max Drawdown (5Y) Largest decline over 5 years	-72.40%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-96.51%	—	—
Current Drawdown Current decline from peak	-99.95%	-16.84%	-83.11%
Average Drawdown Average peak-to-trough decline	-89.17%	-6.00%	-83.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	29.27%	9.03%	+20.24%

Volatility

SKF vs. AUMI - Volatility Comparison

The current volatility for ProShares UltraShort Financials (SKF) is 9.64%, while Themes Gold Miners ETF (AUMI) has a volatility of 18.77%. This indicates that SKF experiences smaller price fluctuations and is considered to be less risky than AUMI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SKF	AUMI	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.64%	18.77%	-9.13%
Volatility (6M) Calculated over the trailing 6-month period	22.75%	40.65%	-17.90%
Volatility (1Y) Calculated over the trailing 1-year period	38.59%	49.65%	-11.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	36.04%	41.38%	-5.34%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	40.94%	41.38%	-0.44%