SKF vs. SPUU

Last updated Jun 24, 2026

SKF (ProShares UltraShort Financials) and SPUU (Direxion Daily S&P 500 Bull 2X ETF) are both Leveraged Equities funds - SKF tracks the DJ Global United States (All) / Financials -IND (-200%) while SPUU tracks the S&P 500 Index (200% Daily). Both are passively managed. Over the past 10 years, SKF returned -27.50%/yr vs 24.81%/yr for SPUU. At a correlation of -0.78, they often move in opposite directions. SKF charges 0.95%/yr vs 0.60%/yr for SPUU.

Performance

SKF vs. SPUU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares UltraShort Financials (SKF) and Direxion Daily S&P 500 Bull 2X ETF (SPUU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SKF achieves a 2.60% return, which is significantly lower than SPUU's 13.33% return. Over the past 10 years, SKF has underperformed SPUU with an annualized return of -27.50%, while SPUU has yielded a comparatively higher 24.81% annualized return.

SKF

• 1D: -0.73%
• 1M: -7.49%
• YTD: 2.60%
• 6M: 5.47%
• 1Y: -10.08%
• 3Y*: -27.28%
• 5Y*: -17.96%
• 10Y*: -27.50%

SPUU

• 1D: -2.91%
• 1M: -3.20%
• YTD: 13.33%
• 6M: 10.95%
• 1Y: 43.00%
• 3Y*: 34.33%
• 5Y*: 18.44%
• 10Y*: 24.81%

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

SKF vs. SPUU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SKF ProShares UltraShort Financials	2.60%	-23.99%	-36.29%	-21.78%	17.63%	-47.66%	-42.40%	-42.97%	16.42%	-31.70%
SPUU Direxion Daily S&P 500 Bull 2X ETF	13.33%	26.55%	44.25%	47.28%	-38.72%	61.27%	21.85%	66.84%	-14.59%	44.33%

Correlation

The correlation between SKF and SPUU is -0.57, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.57
Correlation (3Y) Calculated over the trailing 3-year period	-0.64
Correlation (5Y) Calculated over the trailing 5-year period	-0.75
Correlation (10Y) Calculated over the trailing 10-year period	-0.76
Correlation (All Time) Calculated using the full available price history since Jun 6, 2014	-0.78

Over the past year, the inverse relationship between SKF and SPUU has weakened: their correlation has moved from -0.78 to -0.57, meaning they move in opposite directions less often than they have historically.

SKF vs. SPUU - Sectors Allocation Comparison

Sectors	SKF	SPUU
Financial Services	59.3%	11.1%
Basic Materials	-	1.7%
Communication Services	-	10.6%
Consumer Cyclical	-	9.9%
Consumer Defensive	-	4.5%
Energy	-	3.1%
Healthcare	-	8.3%
Industrials	-	7.8%
Real Estate	-	1.8%
Technology	-	39.0%
Utilities	-	2.1%

Return for Risk

SKF vs. SPUU — Risk / Return Rank

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

SKF

SKF Risk / Return Rank: 5
SKF Sharpe Ratio Rank: 6
SKF Sortino Ratio Rank: 6
SKF Omega Ratio Rank: 6
SKF Calmar Ratio Rank: 5
SKF Martin Ratio Rank: 4

SPUU

SPUU Risk / Return Rank: 51
SPUU Sharpe Ratio Rank: 52
SPUU Sortino Ratio Rank: 47
SPUU Omega Ratio Rank: 48
SPUU Calmar Ratio Rank: 50
SPUU Martin Ratio Rank: 59

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. SPUU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort Financials (SKF) and Direxion Daily S&P 500 Bull 2X ETF (SPUU). 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.

	SKF	SPUU	Difference
Sharpe ratio: Return per unit of total volatility	-0.35	1.72	-2.06
Sortino ratio: Return per unit of downside risk	-0.33	2.25	-2.58
Omega ratio: Gain probability vs. loss probability	0.96	1.30	-0.33
Calmar ratio: Return relative to maximum drawdown	-0.46	2.38	-2.84
Martin ratio: Return relative to average drawdown	-1.05	10.11	-11.16

SKF vs. SPUU - Sharpe Ratio Comparison

The current SKF Sharpe Ratio is -0.35, which is lower than the SPUU Sharpe Ratio of 1.72. The chart below compares the historical Sharpe Ratios of SKF and SPUU, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

SKF vs. SPUU - Drawdown Comparison

The maximum SKF drawdown since its inception was -99.96%, which is greater than SPUU's maximum drawdown of -59.35%. Use the drawdown chart below to compare losses from any high point for SKF and SPUU.

Drawdown Indicators

	SKF	SPUU	Difference
Max Drawdown Largest peak-to-trough decline	-99.96%	-59.35%	-40.61%
Max Drawdown (1Y) Largest decline over 1 year	-22.02%	-18.19%	-3.83%
Max Drawdown (3Y) Largest decline over 3 years	-68.09%	-35.18%	-32.91%
Max Drawdown (5Y) Largest decline over 5 years	-72.40%	-46.59%	-25.81%
Max Drawdown (10Y) Largest decline over 10 years	-96.51%	-59.35%	-37.16%
Current Drawdown Current decline from peak	-99.95%	-6.62%	-93.33%
Average Drawdown Average peak-to-trough decline	-89.27%	-9.48%	-79.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.95%	4.27%	+5.68%

Volatility

SKF vs. SPUU - Volatility Comparison

The current volatility for ProShares UltraShort Financials (SKF) is 8.32%, while Direxion Daily S&P 500 Bull 2X ETF (SPUU) has a volatility of 9.70%. This indicates that SKF experiences smaller price fluctuations and is considered to be less risky than SPUU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SKF	SPUU	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.32%	9.70%	-1.38%
Volatility (6M) Calculated over the trailing 6-month period	22.47%	19.93%	+2.54%
Volatility (1Y) Calculated over the trailing 1-year period	29.21%	25.22%	+3.99%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	36.04%	33.67%	+2.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	40.82%	35.81%	+5.01%

SKF vs. SPUU - Expense Ratio Comparison

SKF has a 0.95% expense ratio, which is higher than SPUU's 0.60% expense ratio.

Dividends

SKF vs. SPUU - Dividend Comparison

SKF's dividend yield for the trailing twelve months is around 4.61%, more than SPUU's 1.42% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SKF ProShares UltraShort Financials	4.61%	5.61%	7.94%	3.93%	0.03%	0.00%	0.11%	1.29%	0.06%	0.00%	0.00%	0.00%
SPUU Direxion Daily S&P 500 Bull 2X ETF	1.42%	1.63%	0.55%	0.83%	0.88%	3.04%	8.03%	1.80%	5.50%	6.96%	8.08%	4.42%

Frequently Asked Questions

Can I hold both SKF and SPUU in my portfolio?

SKF and SPUU have a correlation of -0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SKF or SPUU?

SPUU has higher volatility (9.70%) compared to SKF (8.32%). In terms of maximum drawdown, SKF dropped -99.96% vs SPUU's -59.35%.

Which ETF is better, SKF or SPUU?

On 10-year performance, SPUU leads with 24.81% vs -27.50% for SKF. On fees, SPUU is cheaper at 0.60% per year. On volatility, SKF has been the lower-risk option at 8.32%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SKF or SPUU?

Over the 10-year period, SPUU has performed better with a 24.81% return vs -27.50%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SKF or SPUU?

SPUU is cheaper with a 0.60% expense ratio, compared with 0.95% for SKF.

Which ETF pays a higher dividend yield, SKF or SPUU?

SKF has the higher dividend yield at 4.61%, compared with 1.42% for SPUU.

What is the main difference between SKF and SPUU?

SKF tracks DJ Global United States (All) / Financials -IND (-200%), while SPUU tracks S&P 500 Index (200% Daily). They also come from different issuers: ProShares and Direxion. Their fees differ too: 0.95% for SKF and 0.60% for SPUU.

Which has better risk-adjusted returns?

SPUU currently has the higher Sharpe Ratio (1.72 vs -0.35), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.