COHR vs. SPY

Last updated Apr 3, 2026

Compare and contrast key facts about Coherent, Inc. (COHR) and State Street SPDR S&P 500 ETF (SPY).

SPY is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Jan 22, 1993.

Performance

COHR vs. SPY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Coherent, Inc. (COHR) and State Street SPDR S&P 500 ETF (SPY). The values are adjusted to include any dividend payments, if applicable.

COHR vs. SPY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
COHR Coherent, Inc.	39.87%	94.84%	117.62%	24.02%	-48.63%	-10.04%	125.60%	3.73%	-30.86%	58.35%
SPY State Street SPDR S&P 500 ETF	-3.56%	17.72%	24.89%	26.18%	-18.18%	28.73%	18.33%	31.22%	-4.57%	21.71%

Returns By Period

In the year-to-date period, COHR achieves a 39.87% return, which is significantly higher than SPY's -3.56% return. Over the past 10 years, COHR has outperformed SPY with an annualized return of 28.39%, while SPY has yielded a comparatively lower 14.11% annualized return.

COHR

• 1D: 4.18%
• 1M: -8.07%
• YTD: 39.87%
• 6M: 128.89%
• 1Y: 282.23%
• 3Y*: 89.21%
• 5Y*: 29.31%
• 10Y*: 28.39%

SPY

• 1D: 0.09%
• 1M: -3.34%
• YTD: -3.56%
• 6M: -1.44%
• 1Y: 17.51%
• 3Y*: 18.37%
• 5Y*: 11.88%
• 10Y*: 14.11%

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

Return for Risk

COHR vs. SPY — Risk / Return Rank

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

COHR

COHR Risk / Return Rank: 96
COHR Sharpe Ratio Rank: 98
COHR Sortino Ratio Rank: 93
COHR Omega Ratio Rank: 94
COHR Calmar Ratio Rank: 99
COHR Martin Ratio Rank: 98

SPY

SPY Risk / Return Rank: 53
SPY Sharpe Ratio Rank: 47
SPY Sortino Ratio Rank: 51
SPY Omega Ratio Rank: 56
SPY Calmar Ratio Rank: 50
SPY Martin Ratio Rank: 61

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. SPY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Coherent, Inc. (COHR) and State Street SPDR S&P 500 ETF (SPY). 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.

	COHR	SPY	Difference
Sharpe ratio Return per unit of total volatility	3.79	0.92	+2.87
Sortino ratio Return per unit of downside risk	3.29	1.45	+1.84
Omega ratio Gain probability vs. loss probability	1.48	1.22	+0.26
Calmar ratio Return relative to maximum drawdown	11.51	1.51	+10.00
Martin ratio Return relative to average drawdown	30.26	7.11	+23.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

COHR vs. SPY - Sharpe Ratio Comparison

The current COHR Sharpe Ratio is 3.79, which is higher than the SPY Sharpe Ratio of 0.92. The chart below compares the historical Sharpe Ratios of COHR and SPY, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	COHR	SPY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.79	0.92	+2.87
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.49	0.70	-0.21
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.51	0.79	-0.28
Sharpe Ratio (All Time) Calculated using the full available price history	0.31	0.56	-0.26

Correlation

The correlation between COHR and SPY is 0.41, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

COHR vs. SPY - Dividend Comparison

COHR has not paid dividends to shareholders, while SPY's dividend yield for the trailing twelve months is around 1.13%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COHR Coherent, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SPY State Street SPDR S&P 500 ETF	1.13%	1.07%	1.21%	1.40%	1.65%	1.20%	1.52%	1.75%	2.04%	1.80%	2.03%	2.06%

Drawdowns

COHR vs. SPY - Drawdown Comparison

The maximum COHR drawdown since its inception was -80.89%, which is greater than SPY's maximum drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for COHR and SPY.

Drawdown Indicators

	COHR	SPY	Difference
Max Drawdown Largest peak-to-trough decline	-80.89%	-55.19%	-25.70%
Max Drawdown (1Y) Largest decline over 1 year	-26.52%	-8.88%	-17.64%
Max Drawdown (5Y) Largest decline over 5 years	-66.13%	-24.50%	-41.63%
Max Drawdown (10Y) Largest decline over 10 years	-72.22%	-33.72%	-38.50%
Current Drawdown Current decline from peak	-13.63%	-5.44%	-8.19%
Average Drawdown Average peak-to-trough decline	-35.18%	-9.09%	-26.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.09%	2.57%	+7.52%

Volatility

COHR vs. SPY - Volatility Comparison

Coherent, Inc. (COHR) has a higher volatility of 27.43% compared to State Street SPDR S&P 500 ETF (SPY) at 5.28%. This indicates that COHR's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COHR	SPY	Difference
Volatility (1M) Calculated over the trailing 1-month period	27.43%	5.28%	+22.15%
Volatility (6M) Calculated over the trailing 6-month period	54.71%	9.49%	+45.22%
Volatility (1Y) Calculated over the trailing 1-year period	75.13%	19.06%	+56.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	59.93%	17.05%	+42.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	55.48%	17.92%	+37.56%