IONZ vs. DOG

Last updated Jun 6, 2026

IONZ (Defiance Daily Target 2X Short IONQ ETF) and DOG (ProShares Short Dow30) are both Inverse Equities funds. At a 0.32 correlation, their price movements are largely independent. IONZ charges 1.29%/yr vs 0.95%/yr for DOG.

Performance

IONZ vs. DOG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Defiance Daily Target 2X Short IONQ ETF (IONZ) and ProShares Short Dow30 (DOG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IONZ achieves a -87.96% return, which is significantly lower than DOG's -4.36% return.

IONZ

• 1D: 26.98%
• 1M: -40.91%
• YTD: -87.96%
• 6M: -86.30%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

DOG

• 1D: 1.45%
• 1M: -1.71%
• YTD: -4.36%
• 6M: -4.24%
• 1Y: -13.37%
• 3Y*: -8.54%
• 5Y*: -5.36%
• 10Y*: -11.12%

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

IONZ vs. DOG - Yearly Performance Comparison

	2026 (YTD)	2025
IONZ Defiance Daily Target 2X Short IONQ ETF	-87.96%	-81.41%
DOG ProShares Short Dow30	-4.36%	-8.04%

Correlation

The correlation between IONZ and DOG is 0.32, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jun 25, 2025	0.32

Return for Risk

IONZ vs. DOG — Risk / Return Rank

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

DOG

DOG Risk / Return Rank: 1
DOG Sharpe Ratio Rank: 1
DOG Sortino Ratio Rank: 2
DOG Omega Ratio Rank: 2
DOG Calmar Ratio Rank: 1
DOG Martin Ratio Rank: 1

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.

IONZ vs. DOG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Defiance Daily Target 2X Short IONQ ETF (IONZ) and ProShares Short Dow30 (DOG). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	IONZ	DOG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	-1.09	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.36	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	-0.64	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.52	-0.57	+0.04

Drawdowns

IONZ vs. DOG - Drawdown Comparison

The maximum IONZ drawdown since its inception was -98.66%, which is greater than DOG's maximum drawdown of -92.73%. Use the drawdown chart below to compare losses from any high point for IONZ and DOG.

Drawdown Indicators

	IONZ	DOG	Difference
Max Drawdown Largest peak-to-trough decline	-98.66%	-92.73%	-5.93%
Max Drawdown (1Y) Largest decline over 1 year	—	-15.09%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-29.16%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-34.35%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-70.95%	—
Current Drawdown Current decline from peak	-98.02%	-92.62%	-5.40%
Average Drawdown Average peak-to-trough decline	-73.24%	-66.40%	-6.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	8.98%	—

Volatility

Volatility by Period

	IONZ	DOG	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	3.51%	—
Volatility (6M) Calculated over the trailing 6-month period	—	9.58%	—
Volatility (1Y) Calculated over the trailing 1-year period	187.62%	12.32%	+175.30%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	187.62%	14.81%	+172.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	187.62%	17.50%	+170.12%

IONZ vs. DOG - Expense Ratio Comparison

IONZ has a 1.29% expense ratio, which is higher than DOG's 0.95% expense ratio.

Dividends

IONZ vs. DOG - Dividend Comparison

IONZ has not paid dividends to shareholders, while DOG's dividend yield for the trailing twelve months is around 3.50%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
DOG ProShares Short Dow30	3.50%	3.65%	5.72%	4.54%	0.41%	0.00%	0.14%	1.54%	0.86%	0.04%
IONZ Defiance Daily Target 2X Short IONQ ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IONZ and DOG in my portfolio?

IONZ and DOG have a correlation of 0.32, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IONZ or DOG?

On fees, DOG is cheaper at 0.95% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IONZ or DOG?

DOG is cheaper with a 0.95% expense ratio, compared with 1.29% for IONZ.

Which ETF pays a higher dividend yield, IONZ or DOG?

DOG has the higher dividend yield at 3.50%, compared with 0.00% for IONZ.

What is the main difference between IONZ and DOG?

They also come from different issuers: Defiance and ProShares. Their fees differ too: 1.29% for IONZ and 0.95% for DOG.