COHR vs. VHT

Last updated Jul 17, 2026

COHR (Coherent Corp.) is a stock, while VHT (Vanguard Health Care ETF) is Health & Biotech Equities fund tracking the MSCI US Investable Market Health Care 25/50 Index. Over the past 10 years, COHR returned 30.23%/yr vs 10.08%/yr for VHT. At a 0.42 correlation, their price movements are largely independent.

Performance

COHR vs. VHT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Coherent Corp. (COHR) and Vanguard Health Care ETF (VHT). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, COHR achieves a 50.06% return, which is significantly higher than VHT's 6.42% return. Over the past 10 years, COHR has outperformed VHT with an annualized return of 30.23%, while VHT has yielded a comparatively lower 10.08% annualized return.

COHR

• 1D: -7.49%
• 1M: -27.65%
• 6M: 41.33%
• YTD: 50.06%
• 1Y: 183.13%
• 3Y*: 75.61%
• 5Y*: 31.84%
• 10Y*: 30.23%

VHT

• 1D: 1.72%
• 1M: 7.01%
• 6M: 4.92%
• YTD: 6.42%
• 1Y: 24.97%
• 3Y*: 9.50%
• 5Y*: 5.59%
• 10Y*: 10.08%

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

COHR vs. VHT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
COHR Coherent Corp.	50.06%	94.84%	117.62%	24.02%	-48.63%	-10.04%	125.60%	3.73%	-30.86%	58.35%
VHT Vanguard Health Care ETF	6.42%	15.46%	2.66%	2.52%	-5.60%	20.57%	18.29%	21.87%	5.58%	23.26%

Correlation

The correlation between COHR and VHT is 0.03, 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	0.03
Correlation (3Y) Calculated over the trailing 3-year period	0.18
Correlation (5Y) Calculated over the trailing 5-year period	0.29
Correlation (10Y) Calculated over the trailing 10-year period	0.34
Correlation (All Time) Calculated using the full available price history since Jan 30, 2004	0.42

Over the past year, the correlation between COHR and VHT has dropped to 0.03 - well below their long-term average of 0.42, suggesting their price drivers have been diverging.

Return for Risk

COHR vs. VHT — Risk / Return Rank

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

COHR

COHR Risk / Return Rank: 92
COHR Sharpe Ratio Rank: 94
COHR Sortino Ratio Rank: 87
COHR Omega Ratio Rank: 88
COHR Calmar Ratio Rank: 95
COHR Martin Ratio Rank: 96

VHT

VHT Risk / Return Rank: 58
VHT Sharpe Ratio Rank: 61
VHT Sortino Ratio Rank: 70
VHT Omega Ratio Rank: 57
VHT Calmar Ratio Rank: 60
VHT Martin Ratio Rank: 45

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.

COHR vs. VHT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Coherent Corp. (COHR) and Vanguard Health Care ETF (VHT). 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.

	COHR	VHT	Difference
Sharpe ratio: Return per unit of total volatility	2.38	1.64	+0.74
Sortino ratio: Return per unit of downside risk	2.61	2.54	+0.07
Omega ratio: Gain probability vs. loss probability	1.35	1.28	+0.06
Calmar ratio: Return relative to maximum drawdown	5.25	2.41	+2.84
Martin ratio: Return relative to average drawdown	16.46	5.93	+10.53

COHR vs. VHT - Sharpe Ratio Comparison

The current COHR Sharpe Ratio is 2.38, which is higher than the VHT Sharpe Ratio of 1.64. The chart below compares the historical Sharpe Ratios of COHR and VHT, 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

COHR vs. VHT - Drawdown Comparison

The maximum COHR drawdown since its inception was -80.89%, which is greater than VHT's maximum drawdown of -39.12%. Use the drawdown chart below to compare losses from any high point for COHR and VHT.

Drawdown Indicators

	COHR	VHT	Difference
Max Drawdown Largest peak-to-trough decline	-80.89%	-39.12%	-41.77%
Max Drawdown (1Y) Largest decline over 1 year	-35.12%	-10.40%	-24.72%
Max Drawdown (3Y) Largest decline over 3 years	-54.85%	-16.91%	-37.94%
Max Drawdown (5Y) Largest decline over 5 years	-62.87%	-17.71%	-45.16%
Max Drawdown (10Y) Largest decline over 10 years	-72.22%	-28.85%	-43.37%
Current Drawdown Current decline from peak	-35.12%	-1.98%	-33.14%
Average Drawdown Average peak-to-trough decline	-34.97%	-5.97%	-29.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.17%	4.22%	+6.95%

Volatility

COHR vs. VHT - Volatility Comparison

Coherent Corp. (COHR) has a higher volatility of 24.59% compared to Vanguard Health Care ETF (VHT) at 5.84%. This indicates that COHR's price experiences larger fluctuations and is considered to be riskier than VHT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COHR	VHT	Difference
Volatility (1M) Calculated over the trailing 1-month period	24.59%	5.84%	+18.75%
Volatility (6M) Calculated over the trailing 6-month period	60.48%	11.48%	+49.00%
Volatility (1Y) Calculated over the trailing 1-year period	77.43%	15.36%	+62.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	62.64%	15.21%	+47.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	57.09%	16.99%	+40.10%

Dividends

COHR vs. VHT - Dividend Comparison

COHR has not paid dividends to shareholders, while VHT's dividend yield for the trailing twelve months is around 1.55%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COHR Coherent Corp.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VHT Vanguard Health Care ETF	1.55%	1.61%	1.53%	1.36%	1.33%	1.14%	1.21%	1.89%	1.38%	1.31%	1.45%	1.22%

Frequently Asked Questions

Can I hold both COHR and VHT in my portfolio?

COHR and VHT have a correlation of 0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, COHR or VHT?

COHR has higher volatility (24.59%) compared to VHT (5.84%). In terms of maximum drawdown, COHR dropped -80.89% vs VHT's -39.12%.

Which has better risk-adjusted returns?

COHR currently has the higher Sharpe Ratio (2.38 vs 1.64), 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.