SKF vs. DIA

Last updated Jul 14, 2026

SKF (ProShares UltraShort Financials) and DIA (State Street SPDR Dow Jones Industrial Average ETF Trust) are both exchange-traded funds - SKF is a Leveraged Equities fund tracking the DJ Global United States (All) / Financials -IND (-200%), while DIA is a Large Cap Blend Equities fund tracking the Dow Jones Industrial Average. Both are passively managed. Over the past 10 years, SKF returned -27.13%/yr vs 13.14%/yr for DIA. At a correlation of -0.84, they often move in opposite directions. SKF charges 0.95%/yr vs 0.16%/yr for DIA.

Performance

SKF vs. DIA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares UltraShort Financials (SKF) and State Street SPDR Dow Jones Industrial Average ETF Trust (DIA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SKF achieves a -5.00% return, which is significantly lower than DIA's 9.95% return. Over the past 10 years, SKF has underperformed DIA with an annualized return of -27.13%, while DIA has yielded a comparatively higher 13.14% annualized return.

SKF

• 1D: -1.22%
• 1M: -9.77%
• 6M: -3.25%
• YTD: -5.00%
• 1Y: -12.40%
• 3Y*: -27.16%
• 5Y*: -18.85%
• 10Y*: -27.13%

DIA

• 1D: -0.25%
• 1M: 2.50%
• 6M: 6.55%
• YTD: 9.95%
• 1Y: 20.04%
• 3Y*: 16.88%
• 5Y*: 10.38%
• 10Y*: 13.14%

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

SKF vs. DIA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SKF ProShares UltraShort Financials	-5.00%	-23.99%	-36.29%	-21.78%	17.63%	-47.66%	-42.40%	-42.97%	16.42%	-31.70%
DIA State Street SPDR Dow Jones Industrial Average ETF Trust	9.95%	14.71%	14.82%	16.02%	-7.02%	20.83%	9.59%	24.70%	-3.74%	28.08%

Correlation

The correlation between SKF and DIA is -0.77, 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	-0.77
Correlation (3Y) Calculated over the trailing 3-year period	-0.81
Correlation (5Y) Calculated over the trailing 5-year period	-0.86
Correlation (10Y) Calculated over the trailing 10-year period	-0.85
Correlation (All Time) Calculated using the full available price history since Feb 1, 2007	-0.84

The correlation between SKF and DIA has been stable across timeframes, ranging from -0.86 to -0.77 - a consistent structural relationship.

SKF vs. DIA - Sectors Allocation Comparison

Sectors	SKF	DIA
Financial Services	69.4%	27.3%
Basic Materials	-	3.7%
Communication Services	-	1.8%
Consumer Cyclical	-	11.0%
Consumer Defensive	-	4.1%
Energy	-	2.2%
Healthcare	-	12.8%
Industrials	-	18.1%
Real Estate	-	-
Technology	-	19.1%
Utilities	-	-

Return for Risk

SKF vs. DIA — 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

DIA

DIA Risk / Return Rank: 59
DIA Sharpe Ratio Rank: 62
DIA Sortino Ratio Rank: 66
DIA Omega Ratio Rank: 61
DIA Calmar Ratio Rank: 52
DIA Martin Ratio Rank: 58

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. DIA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort Financials (SKF) and State Street SPDR Dow Jones Industrial Average ETF Trust (DIA). 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	DIA	Difference
Sharpe ratio: Return per unit of total volatility	-0.42	1.64	-2.06
Sortino ratio: Return per unit of downside risk	-0.45	2.41	-2.85
Omega ratio: Gain probability vs. loss probability	0.95	1.29	-0.34
Calmar ratio: Return relative to maximum drawdown	-0.46	2.06	-2.52
Martin ratio: Return relative to average drawdown	-1.13	7.98	-9.11

SKF vs. DIA - Sharpe Ratio Comparison

The current SKF Sharpe Ratio is -0.42, which is lower than the DIA Sharpe Ratio of 1.64. The chart below compares the historical Sharpe Ratios of SKF and DIA, 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. DIA - Drawdown Comparison

The maximum SKF drawdown since its inception was -99.96%, which is greater than DIA's maximum drawdown of -51.87%. Use the drawdown chart below to compare losses from any high point for SKF and DIA.

Drawdown Indicators

	SKF	DIA	Difference
Max Drawdown Largest peak-to-trough decline	-99.96%	-51.87%	-48.09%
Max Drawdown (1Y) Largest decline over 1 year	-27.08%	-9.76%	-17.32%
Max Drawdown (3Y) Largest decline over 3 years	-68.09%	-15.95%	-52.14%
Max Drawdown (5Y) Largest decline over 5 years	-72.40%	-20.76%	-51.64%
Max Drawdown (10Y) Largest decline over 10 years	-95.83%	-36.70%	-59.13%
Current Drawdown Current decline from peak	-99.96%	-1.06%	-98.90%
Average Drawdown Average peak-to-trough decline	-89.30%	-7.12%	-82.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.99%	2.52%	+8.47%

Volatility

SKF vs. DIA - Volatility Comparison

ProShares UltraShort Financials (SKF) has a higher volatility of 8.58% compared to State Street SPDR Dow Jones Industrial Average ETF Trust (DIA) at 3.02%. This indicates that SKF's price experiences larger fluctuations and is considered to be riskier than DIA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SKF	DIA	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.58%	3.02%	+5.56%
Volatility (6M) Calculated over the trailing 6-month period	22.76%	9.67%	+13.09%
Volatility (1Y) Calculated over the trailing 1-year period	29.50%	12.30%	+17.20%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	36.03%	14.82%	+21.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	40.76%	17.51%	+23.25%

SKF vs. DIA - Expense Ratio Comparison

SKF has a 0.95% expense ratio, which is higher than DIA's 0.16% expense ratio.

Dividends

SKF vs. DIA - Dividend Comparison

SKF's dividend yield for the trailing twelve months is around 4.51%, more than DIA's 1.38% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIA State Street SPDR Dow Jones Industrial Average ETF Trust	1.38%	1.43%	1.61%	1.81%	1.91%	1.58%	1.87%	1.85%	2.24%	1.97%	2.26%	2.33%
SKF ProShares UltraShort Financials	4.51%	5.61%	7.94%	3.93%	0.03%	0.00%	0.11%	1.29%	0.06%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SKF and DIA in my portfolio?

SKF and DIA have a correlation of -0.77, 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 DIA?

SKF has higher volatility (8.58%) compared to DIA (3.02%). In terms of maximum drawdown, SKF dropped -99.96% vs DIA's -51.87%.

Which ETF is better, SKF or DIA?

On 10-year performance, DIA leads with 13.14% vs -27.13% for SKF. On fees, DIA is cheaper at 0.16% per year. On volatility, DIA has been the lower-risk option at 3.02%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SKF or DIA?

Over the 10-year period, DIA has performed better with a 13.14% return vs -27.13%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SKF or DIA?

DIA is cheaper with a 0.16% expense ratio, compared with 0.95% for SKF.

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

SKF has the higher dividend yield at 4.51%, compared with 1.38% for DIA.

What is the main difference between SKF and DIA?

SKF is categorized as Leveraged Equities, while DIA is Large Cap Blend Equities. SKF tracks DJ Global United States (All) / Financials -IND (-200%), while DIA tracks Dow Jones Industrial Average. They also come from different issuers: ProShares and State Street. Their fees differ too: 0.95% for SKF and 0.16% for DIA.

Which has better risk-adjusted returns?

DIA currently has the higher Sharpe Ratio (1.64 vs -0.42), 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.