ECML vs. YCS

Last updated Jun 23, 2026

ECML (EA Series Trust - Euclidean Fundamental Value ETF) and YCS (ProShares UltraShort Yen) are both exchange-traded funds - ECML is a Small Cap Value Equities fund actively managed by Euclidean, while YCS is a Leveraged Currency fund tracking the USD/JPY Exchange Rate (-200%). ECML is actively managed, while YCS is passively managed. Over the past 3 years, ECML returned 14.43%/yr vs 18.43%/yr for YCS. At a correlation of -0.06, they often move in opposite directions. ECML charges 0.95%/yr vs 1.00%/yr for YCS.

Performance

ECML vs. YCS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in EA Series Trust - Euclidean Fundamental Value ETF (ECML) and ProShares UltraShort Yen (YCS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ECML achieves a 14.84% return, which is significantly higher than YCS's 9.78% return.

ECML

• 1D: 0.35%
• 1M: 1.19%
• YTD: 14.84%
• 6M: 13.24%
• 1Y: 28.34%
• 3Y*: 14.43%
• 5Y*: —
• 10Y*: —

YCS

• 1D: 0.40%
• 1M: 3.71%
• YTD: 9.78%
• 6M: 9.63%
• 1Y: 31.36%
• 3Y*: 18.43%
• 5Y*: 23.50%
• 10Y*: 13.63%

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

ECML vs. YCS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ECML EA Series Trust - Euclidean Fundamental Value ETF	14.84%	6.82%	2.37%	26.00%
YCS ProShares UltraShort Yen	9.78%	9.04%	35.41%	13.16%

Correlation

The correlation between ECML and YCS is -0.16, 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	-0.16
Correlation (3Y) Calculated over the trailing 3-year period	-0.08
Correlation (All Time) Calculated using the full available price history since May 18, 2023	-0.06

The correlation between ECML and YCS shifts across timeframes, from -0.16 (1 year) to -0.06 (all time), reflecting how their relationship changes across market environments.

Return for Risk

ECML vs. YCS — Risk / Return Rank

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

ECML

ECML Risk / Return Rank: 65
ECML Sharpe Ratio Rank: 60
ECML Sortino Ratio Rank: 66
ECML Omega Ratio Rank: 55
ECML Calmar Ratio Rank: 80
ECML Martin Ratio Rank: 66

YCS

YCS Risk / Return Rank: 61
YCS Sharpe Ratio Rank: 57
YCS Sortino Ratio Rank: 49
YCS Omega Ratio Rank: 57
YCS Calmar Ratio Rank: 77
YCS Martin Ratio Rank: 67

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.

ECML vs. YCS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for EA Series Trust - Euclidean Fundamental Value ETF (ECML) and ProShares UltraShort Yen (YCS). 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.

	ECML	YCS	Difference
Sharpe ratio: Return per unit of total volatility	1.93	1.86	+0.07
Sortino ratio: Return per unit of downside risk	2.93	2.37	+0.56
Omega ratio: Gain probability vs. loss probability	1.33	1.35	-0.02
Calmar ratio: Return relative to maximum drawdown	4.06	3.79	+0.27
Martin ratio: Return relative to average drawdown	11.61	11.86	-0.25

ECML vs. YCS - Sharpe Ratio Comparison

The current ECML Sharpe Ratio is 1.93, which is comparable to the YCS Sharpe Ratio of 1.86. The chart below compares the historical Sharpe Ratios of ECML and YCS, 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

ECML vs. YCS - Drawdown Comparison

The maximum ECML drawdown since its inception was -24.66%, smaller than the maximum YCS drawdown of -49.56%. Use the drawdown chart below to compare losses from any high point for ECML and YCS.

Drawdown Indicators

	ECML	YCS	Difference
Max Drawdown Largest peak-to-trough decline	-24.66%	-49.56%	+24.90%
Max Drawdown (1Y) Largest decline over 1 year	-7.01%	-8.30%	+1.29%
Max Drawdown (3Y) Largest decline over 3 years	-24.66%	-23.05%	-1.61%
Max Drawdown (5Y) Largest decline over 5 years	—	-27.32%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-27.32%	—
Current Drawdown Current decline from peak	-2.06%	0.00%	-2.06%
Average Drawdown Average peak-to-trough decline	-5.80%	-19.88%	+14.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.45%	2.65%	-0.20%

Volatility

ECML vs. YCS - Volatility Comparison

EA Series Trust - Euclidean Fundamental Value ETF (ECML) has a higher volatility of 4.01% compared to ProShares UltraShort Yen (YCS) at 2.22%. This indicates that ECML's price experiences larger fluctuations and is considered to be riskier than YCS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ECML	YCS	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.01%	2.22%	+1.79%
Volatility (6M) Calculated over the trailing 6-month period	9.68%	12.19%	-2.51%
Volatility (1Y) Calculated over the trailing 1-year period	14.79%	16.96%	-2.17%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.34%	21.10%	-2.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.34%	18.96%	-0.62%

ECML vs. YCS - Expense Ratio Comparison

ECML has a 0.95% expense ratio, which is lower than YCS's 1.00% expense ratio.

Dividends

ECML vs. YCS - Dividend Comparison

ECML's dividend yield for the trailing twelve months is around 1.20%, while YCS has not paid dividends to shareholders.

Position	TTM	2025	2024	2023
ECML EA Series Trust - Euclidean Fundamental Value ETF	1.20%	1.38%	0.98%	0.77%
YCS ProShares UltraShort Yen	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both ECML and YCS in my portfolio?

ECML and YCS have a correlation of -0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ECML or YCS?

ECML has higher volatility (4.01%) compared to YCS (2.22%). In terms of maximum drawdown, ECML dropped -24.66% vs YCS's -49.56%.

Which ETF is better, ECML or YCS?

On 3-year performance, YCS leads with 18.43% vs 14.43% for ECML. On fees, ECML is cheaper at 0.95% per year. On volatility, YCS has been the lower-risk option at 2.22%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ECML or YCS?

Over the 3-year period, YCS has performed better with a 18.43% return vs 14.43%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ECML or YCS?

ECML is cheaper with a 0.95% expense ratio, compared with 1.00% for YCS.

Which ETF pays a higher dividend yield, ECML or YCS?

ECML has the higher dividend yield at 1.20%, compared with 0.00% for YCS.

What is the main difference between ECML and YCS?

ECML is categorized as Small Cap Value Equities, while YCS is Leveraged Currency. They also come from different issuers: Euclidean and ProShares. Their fees differ too: 0.95% for ECML and 1.00% for YCS.

Which has better risk-adjusted returns?

ECML currently has the higher Sharpe Ratio (1.93 vs 1.86), 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.