ZVRA vs. ERO

Last updated Jun 13, 2026

ZVRA (Zevra Therapeutics Inc.) and ERO (Ero Copper Corp) are both stocks. ZVRA operates in Biotechnology (Healthcare), while ERO operates in Copper (Basic Materials). Over the past 5 years, ZVRA returned -2.85%/yr vs 4.57%/yr for ERO. At a 0.13 correlation, their price movements are largely independent.

Performance

ZVRA vs. ERO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Zevra Therapeutics Inc. (ZVRA) and Ero Copper Corp (ERO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ZVRA achieves a 41.18% return, which is significantly higher than ERO's 3.89% return.

ZVRA

• 1D: -2.47%
• 1M: 13.76%
• YTD: 41.18%
• 6M: 51.86%
• 1Y: 35.01%
• 3Y*: 29.54%
• 5Y*: -2.85%
• 10Y*: -16.40%

ERO

• 1D: 6.10%
• 1M: -5.13%
• YTD: 3.89%
• 6M: 16.30%
• 1Y: 87.56%
• 3Y*: 14.46%
• 5Y*: 4.57%
• 10Y*: —

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

ZVRA vs. ERO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ZVRA Zevra Therapeutics Inc.	41.18%	7.43%	27.33%	42.70%	-47.30%	-22.23%	84.70%	-78.71%	-56.05%	5.19%
ERO Ero Copper Corp	3.89%	109.87%	-14.63%	14.84%	-10.07%	-5.73%	-10.97%	151.68%	21.41%	52.76%

Correlation

The correlation between ZVRA and ERO is 0.12, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.12
Correlation (3Y) Calculated over the trailing 3-year period	0.15
Correlation (5Y) Calculated over the trailing 5-year period	0.17
Correlation (All Time) Calculated using the full available price history since Oct 23, 2017	0.13

Fundamentals

Market Cap ZVRA : $761.92M ERO : $3.09B
EPS ZVRA : $2.16 ERO : $2.80
PE Ratio ZVRA : 5.85 ERO : 10.51
PS Ratio ZVRA : 5.94 ERO : 3.32
PB Ratio ZVRA : 3.70 ERO : 2.80
Total Revenue (TTM) ZVRA : $122.29M ERO : $925.20M
Gross Profit (TTM) ZVRA : $104.94M ERO : $394.67M
EBITDA (TTM) ZVRA : $149.15M ERO : $528.87M

Return for Risk

ZVRA vs. ERO — Risk / Return Rank

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

ZVRA

ZVRA Risk / Return Rank: 60
ZVRA Sharpe Ratio Rank: 61
ZVRA Sortino Ratio Rank: 62
ZVRA Omega Ratio Rank: 61
ZVRA Calmar Ratio Rank: 60
ZVRA Martin Ratio Rank: 57

ERO

ERO Risk / Return Rank: 78
ERO Sharpe Ratio Rank: 83
ERO Sortino Ratio Rank: 77
ERO Omega Ratio Rank: 76
ERO Calmar Ratio Rank: 79
ERO Martin Ratio Rank: 77

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.

ZVRA vs. ERO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Zevra Therapeutics Inc. (ZVRA) and Ero Copper Corp (ERO). 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.

	ZVRA	ERO	Difference
Sharpe ratio: Return per unit of total volatility	0.56	1.52	-0.96
Sortino ratio: Return per unit of downside risk	1.27	1.97	-0.71
Omega ratio: Gain probability vs. loss probability	1.16	1.26	-0.10
Calmar ratio: Return relative to maximum drawdown	0.81	2.32	-1.51
Martin ratio: Return relative to average drawdown	1.41	4.95	-3.54

ZVRA vs. ERO - Sharpe Ratio Comparison

The current ZVRA Sharpe Ratio is 0.56, which is lower than the ERO Sharpe Ratio of 1.52. The chart below compares the historical Sharpe Ratios of ZVRA and ERO, 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

ZVRA vs. ERO - Drawdown Comparison

The maximum ZVRA drawdown since its inception was -99.27%, which is greater than ERO's maximum drawdown of -67.17%. Use the drawdown chart below to compare losses from any high point for ZVRA and ERO.

Drawdown Indicators

	ZVRA	ERO	Difference
Max Drawdown Largest peak-to-trough decline	-99.27%	-67.17%	-32.10%
Max Drawdown (1Y) Largest decline over 1 year	-43.47%	-37.97%	-5.50%
Max Drawdown (3Y) Largest decline over 3 years	-43.47%	-59.84%	+16.37%
Max Drawdown (5Y) Largest decline over 5 years	-74.01%	-63.89%	-10.12%
Max Drawdown (10Y) Largest decline over 10 years	-97.85%	—	—
Current Drawdown Current decline from peak	-96.65%	-22.72%	-73.93%
Average Drawdown Average peak-to-trough decline	-86.41%	-27.04%	-59.37%
Ulcer Index Depth and duration of drawdowns from previous peaks	24.87%	17.75%	+7.12%

Volatility

ZVRA vs. ERO - Volatility Comparison

The current volatility for Zevra Therapeutics Inc. (ZVRA) is 24.56%, while Ero Copper Corp (ERO) has a volatility of 26.23%. This indicates that ZVRA experiences smaller price fluctuations and is considered to be less risky than ERO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ZVRA	ERO	Difference
Volatility (1M) Calculated over the trailing 1-month period	24.56%	26.23%	-1.67%
Volatility (6M) Calculated over the trailing 6-month period	40.23%	47.36%	-7.13%
Volatility (1Y) Calculated over the trailing 1-year period	62.90%	58.06%	+4.84%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	60.49%	55.03%	+5.46%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	81.46%	59.38%	+22.08%

Dividends

ZVRA vs. ERO - Dividend Comparison

Neither ZVRA nor ERO has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both ZVRA and ERO in my portfolio?

ZVRA and ERO have a correlation of 0.12, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ZVRA or ERO?

ERO has higher volatility (26.23%) compared to ZVRA (24.56%). In terms of maximum drawdown, ZVRA dropped -99.27% vs ERO's -67.17%.

Which has better risk-adjusted returns?

ERO currently has the higher Sharpe Ratio (1.52 vs 0.56), 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.