COVTY vs. ZSTK

Last updated Jun 4, 2026

COVTY (Covestro ADR) and ZSTK (ZeroStack Corp.) are both stocks. COVTY operates in Specialty Chemicals (Basic Materials), while ZSTK operates in Asset Management (Financial Services). Over the past 5 years, COVTY returned 0.98%/yr vs -72.02%/yr for ZSTK. At a 0.12 correlation, their price movements are largely independent.

Performance

COVTY vs. ZSTK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Covestro ADR (COVTY) and ZeroStack Corp. (ZSTK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, COVTY achieves a 2.79% return, which is significantly higher than ZSTK's -21.73% return.

COVTY

• 1D: 1.16%
• 1M: -0.65%
• YTD: 2.79%
• 6M: 0.63%
• 1Y: 0.89%
• 3Y*: 18.52%
• 5Y*: 0.98%
• 10Y*: —

ZSTK

• 1D: 1.34%
• 1M: -1.41%
• YTD: -21.73%
• 6M: -50.51%
• 1Y: -80.98%
• 3Y*: -69.97%
• 5Y*: -72.02%
• 10Y*: —

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

COVTY vs. ZSTK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
COVTY Covestro ADR	2.79%	15.75%	-0.88%	50.21%	-31.89%	-11.64%
ZSTK ZeroStack Corp.	-21.73%	-84.42%	-23.70%	-70.34%	-87.21%	-62.84%

Correlation

The correlation between COVTY and ZSTK is 0.04, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.04
Correlation (3Y) Calculated over the trailing 3-year period	0.06
Correlation (5Y) Calculated over the trailing 5-year period	0.12
Correlation (All Time) Calculated using the full available price history since May 12, 2021	0.12

Fundamentals

EPS COVTY : -$1.69 ZSTK : -$221.74
PS Ratio COVTY : 1.01 ZSTK : 0.11
Total Revenue (TTM) COVTY : $12.91B ZSTK : $23.89M
Gross Profit (TTM) COVTY : $1.71B ZSTK : -$7.71M
EBITDA (TTM) COVTY : $733.54M ZSTK : -$9.88M

Return for Risk

COVTY vs. ZSTK — Risk / Return Rank

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

COVTY

COVTY Risk / Return Rank: 40
COVTY Sharpe Ratio Rank: 43
COVTY Sortino Ratio Rank: 36
COVTY Omega Ratio Rank: 35
COVTY Calmar Ratio Rank: 43
COVTY Martin Ratio Rank: 43

ZSTK

ZSTK Risk / Return Rank: 14
ZSTK Sharpe Ratio Rank: 17
ZSTK Sortino Ratio Rank: 16
ZSTK Omega Ratio Rank: 17
ZSTK Calmar Ratio Rank: 5
ZSTK Martin Ratio Rank: 12

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.

COVTY vs. ZSTK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Covestro ADR (COVTY) and ZeroStack Corp. (ZSTK). 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.

	COVTY	ZSTK	Difference
Sharpe ratio Return per unit of total volatility	0.04	-0.56	+0.60
Sortino ratio Return per unit of downside risk	0.21	-0.72	+0.93
Omega ratio Gain probability vs. loss probability	1.03	0.91	+0.11
Calmar ratio Return relative to maximum drawdown	0.09	-0.92	+1.01
Martin ratio Return relative to average drawdown	0.23	-1.28	+1.51
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

COVTY vs. ZSTK - Sharpe Ratio Comparison

The current COVTY Sharpe Ratio is 0.04, which is higher than the ZSTK Sharpe Ratio of -0.56. The chart below compares the historical Sharpe Ratios of COVTY and ZSTK, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	COVTY	ZSTK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.04	-0.56	+0.60
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.03	-0.53	+0.56
Sharpe Ratio (All Time) Calculated using the full available price history	0.07	-0.53	+0.61

Drawdowns

COVTY vs. ZSTK - Drawdown Comparison

The maximum COVTY drawdown since its inception was -77.54%, smaller than the maximum ZSTK drawdown of -99.97%. Use the drawdown chart below to compare losses from any high point for COVTY and ZSTK.

Drawdown Indicators

	COVTY	ZSTK	Difference
Max Drawdown Largest peak-to-trough decline	-77.54%	-99.97%	+22.43%
Max Drawdown (1Y) Largest decline over 1 year	-10.23%	-87.91%	+77.68%
Max Drawdown (3Y) Largest decline over 3 years	-16.19%	-97.87%	+81.68%
Max Drawdown (5Y) Largest decline over 5 years	-57.49%	-99.97%	+42.48%
Current Drawdown Current decline from peak	-33.11%	-99.96%	+66.85%
Average Drawdown Average peak-to-trough decline	-42.07%	-92.08%	+50.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.85%	63.36%	-59.51%

Volatility

COVTY vs. ZSTK - Volatility Comparison

The current volatility for Covestro ADR (COVTY) is 6.36%, while ZeroStack Corp. (ZSTK) has a volatility of 33.07%. This indicates that COVTY experiences smaller price fluctuations and is considered to be less risky than ZSTK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COVTY	ZSTK	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.36%	33.07%	-26.71%
Volatility (6M) Calculated over the trailing 6-month period	17.69%	109.08%	-91.39%
Volatility (1Y) Calculated over the trailing 1-year period	23.86%	144.66%	-120.80%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.95%	137.51%	-106.56%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	34.38%	137.48%	-103.10%

Dividends

COVTY vs. ZSTK - Dividend Comparison

Neither COVTY nor ZSTK has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
COVTY Covestro ADR	0.00%	0.00%	0.00%	0.00%	9.64%	2.53%	2.23%	4.26%	3.92%	2.44%
ZSTK ZeroStack Corp.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both COVTY and ZSTK in my portfolio?

COVTY and ZSTK have a correlation of 0.04, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, COVTY or ZSTK?

ZSTK has higher volatility (33.07%) compared to COVTY (6.36%). In terms of maximum drawdown, COVTY dropped -77.54% vs ZSTK's -99.97%.

Which has better risk-adjusted returns?

COVTY currently has the higher Sharpe Ratio (0.04 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.