DXKSX vs. SOPIX

Last updated Jun 26, 2026

DXKSX (Direxion Monthly 7-10 Year Treasury Bear 1.75X Fund) and SOPIX (ProFunds Short NASDAQ-100 Fund) are both mutual funds - DXKSX is a Inverse Bonds fund managed by Direxion, while SOPIX is a Inverse Equities fund managed by ProFunds. Over the past 10 years, DXKSX returned 2.91%/yr vs -20.78%/yr for SOPIX. At a correlation of -0.21, they often move in opposite directions. DXKSX charges 1.35%/yr vs 1.78%/yr for SOPIX.

Performance

DXKSX vs. SOPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Direxion Monthly 7-10 Year Treasury Bear 1.75X Fund (DXKSX) and ProFunds Short NASDAQ-100 Fund (SOPIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DXKSX achieves a 3.90% return, which is significantly higher than SOPIX's -13.24% return. Over the past 10 years, DXKSX has outperformed SOPIX with an annualized return of 2.91%, while SOPIX has yielded a comparatively lower -20.78% annualized return.

DXKSX

• 1D: -1.11%
• 1M: -0.65%
• YTD: 3.90%
• 6M: 4.43%
• 1Y: 3.76%
• 3Y*: 5.35%
• 5Y*: 9.10%
• 10Y*: 2.91%

SOPIX

• 1D: 0.44%
• 1M: 2.35%
• YTD: -13.24%
• 6M: -11.78%
• 1Y: -21.95%
• 3Y*: -20.32%
• 5Y*: -15.26%
• 10Y*: -20.78%

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

DXKSX vs. SOPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DXKSX Direxion Monthly 7-10 Year Treasury Bear 1.75X Fund	3.90%	-3.26%	12.62%	3.03%	35.65%	4.73%	-13.02%	-11.52%	-0.00%	-5.45%
SOPIX ProFunds Short NASDAQ-100 Fund	-13.24%	-15.80%	-23.82%	-31.85%	34.73%	-25.69%	-42.92%	-28.29%	-3.07%	-25.24%

Correlation

The correlation between DXKSX and SOPIX is 0.17, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.17
Correlation (3Y) Calculated over the trailing 3-year period	0.11
Correlation (5Y) Calculated over the trailing 5-year period	0.07
Correlation (10Y) Calculated over the trailing 10-year period	-0.04
Correlation (All Time) Calculated using the full available price history since May 20, 2004	-0.21

The correlation between DXKSX and SOPIX shifts across timeframes, from -0.21 (all time) to 0.17 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

DXKSX vs. SOPIX — Risk / Return Rank

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

DXKSX

DXKSX Risk / Return Rank: 8
DXKSX Sharpe Ratio Rank: 8
DXKSX Sortino Ratio Rank: 7
DXKSX Omega Ratio Rank: 7
DXKSX Calmar Ratio Rank: 9
DXKSX Martin Ratio Rank: 7

SOPIX

SOPIX Risk / Return Rank: 0
SOPIX Sharpe Ratio Rank: 0
SOPIX Sortino Ratio Rank: 0
SOPIX Omega Ratio Rank: 0
SOPIX Calmar Ratio Rank: 0
SOPIX Martin Ratio Rank: 0

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.

DXKSX vs. SOPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Direxion Monthly 7-10 Year Treasury Bear 1.75X Fund (DXKSX) and ProFunds Short NASDAQ-100 Fund (SOPIX). 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.

	DXKSX	SOPIX	Difference
Sharpe ratio: Return per unit of total volatility	0.45	-1.24	+1.69
Sortino ratio: Return per unit of downside risk	0.69	-1.83	+2.52
Omega ratio: Gain probability vs. loss probability	1.08	0.80	+0.28
Calmar ratio: Return relative to maximum drawdown	0.67	-0.88	+1.55
Martin ratio: Return relative to average drawdown	1.30	-1.87	+3.16

DXKSX vs. SOPIX - Sharpe Ratio Comparison

The current DXKSX Sharpe Ratio is 0.45, which is higher than the SOPIX Sharpe Ratio of -1.24. The chart below compares the historical Sharpe Ratios of DXKSX and SOPIX, 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

DXKSX vs. SOPIX - Drawdown Comparison

The maximum DXKSX drawdown since its inception was -85.78%, smaller than the maximum SOPIX drawdown of -99.07%. Use the drawdown chart below to compare losses from any high point for DXKSX and SOPIX.

Drawdown Indicators

	DXKSX	SOPIX	Difference
Max Drawdown Largest peak-to-trough decline	-85.78%	-99.07%	+13.29%
Max Drawdown (1Y) Largest decline over 1 year	-5.58%	-24.87%	+19.29%
Max Drawdown (3Y) Largest decline over 3 years	-14.02%	-54.87%	+40.85%
Max Drawdown (5Y) Largest decline over 5 years	-14.02%	-65.00%	+50.98%
Max Drawdown (10Y) Largest decline over 10 years	-36.52%	-90.67%	+54.15%
Current Drawdown Current decline from peak	-73.97%	-99.03%	+25.06%
Average Drawdown Average peak-to-trough decline	-61.33%	-76.18%	+14.85%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.88%	12.00%	-9.12%

Volatility

DXKSX vs. SOPIX - Volatility Comparison

The current volatility for Direxion Monthly 7-10 Year Treasury Bear 1.75X Fund (DXKSX) is 2.67%, while ProFunds Short NASDAQ-100 Fund (SOPIX) has a volatility of 8.97%. This indicates that DXKSX experiences smaller price fluctuations and is considered to be less risky than SOPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DXKSX	SOPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.67%	8.97%	-6.30%
Volatility (6M) Calculated over the trailing 6-month period	6.10%	14.45%	-8.35%
Volatility (1Y) Calculated over the trailing 1-year period	8.28%	17.95%	-9.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.85%	23.66%	-9.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.53%	22.60%	-10.07%

DXKSX vs. SOPIX - Expense Ratio Comparison

DXKSX has a 1.35% expense ratio, which is lower than SOPIX's 1.78% expense ratio.

Dividends

DXKSX vs. SOPIX - Dividend Comparison

DXKSX's dividend yield for the trailing twelve months is around 11.80%, more than SOPIX's 2.47% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
DXKSX Direxion Monthly 7-10 Year Treasury Bear 1.75X Fund	11.80%	0.00%	9.44%	8.98%	0.00%	0.00%	6.10%	1.26%
SOPIX ProFunds Short NASDAQ-100 Fund	2.47%	2.14%	0.00%	6.71%	0.00%	0.00%	0.00%	0.29%

Frequently Asked Questions

Can I hold both DXKSX and SOPIX in my portfolio?

DXKSX and SOPIX have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DXKSX or SOPIX?

SOPIX has higher volatility (8.97%) compared to DXKSX (2.67%). In terms of maximum drawdown, DXKSX dropped -85.78% vs SOPIX's -99.07%.

Which has better risk-adjusted returns?

DXKSX currently has the higher Sharpe Ratio (0.45 vs -1.24), 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.