COHR vs. ^GSPC

Last updated Apr 2, 2026

Compare and contrast key facts about Coherent, Inc. (COHR) and S&P 500 Index (^GSPC).

Performance

COHR vs. ^GSPC - Performance Comparison

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

COHR vs. ^GSPC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
COHR Coherent, Inc.	34.26%	94.84%	117.62%	24.02%	-48.63%	-10.04%	125.60%	3.73%	-30.86%	58.35%
^GSPC S&P 500 Index	-3.84%	16.39%	23.31%	24.23%	-19.44%	26.89%	16.26%	28.88%	-6.24%	19.42%

Returns By Period

In the year-to-date period, COHR achieves a 34.26% return, which is significantly higher than ^GSPC's -3.84% return. Over the past 10 years, COHR has outperformed ^GSPC with an annualized return of 27.75%, while ^GSPC has yielded a comparatively lower 12.29% annualized return.

COHR

• 1D: 4.03%
• 1M: -17.10%
• YTD: 34.26%
• 6M: 116.14%
• 1Y: 289.01%
• 3Y*: 86.70%
• 5Y*: 28.26%
• 10Y*: 27.75%

^GSPC

• 1D: 0.11%
• 1M: -3.43%
• YTD: -3.84%
• 6M: -1.98%
• 1Y: 16.08%
• 3Y*: 16.86%
• 5Y*: 10.37%
• 10Y*: 12.29%

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

Return for Risk

COHR vs. ^GSPC — Risk / Return Rank

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

COHR

COHR Risk / Return Rank: 97
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

^GSPC

^GSPC Risk / Return Rank: 58
^GSPC Sharpe Ratio Rank: 52
^GSPC Sortino Ratio Rank: 55
^GSPC Omega Ratio Rank: 59
^GSPC Calmar Ratio Rank: 52
^GSPC Martin Ratio Rank: 71

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. ^GSPC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Coherent, Inc. (COHR) and S&P 500 Index (^GSPC). 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	^GSPC	Difference
Sharpe ratio Return per unit of total volatility	3.88	0.88	+3.00
Sortino ratio Return per unit of downside risk	3.32	1.37	+1.96
Omega ratio Gain probability vs. loss probability	1.49	1.21	+0.28
Calmar ratio Return relative to maximum drawdown	10.62	1.39	+9.23
Martin ratio Return relative to average drawdown	28.01	6.43	+21.58
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. ^GSPC - Sharpe Ratio Comparison

The current COHR Sharpe Ratio is 3.88, which is higher than the ^GSPC Sharpe Ratio of 0.88. The chart below compares the historical Sharpe Ratios of COHR and ^GSPC, 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	^GSPC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.88	0.88	+3.00
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.47	0.62	-0.14
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.50	0.68	-0.18
Sharpe Ratio (All Time) Calculated using the full available price history	0.30	0.46	-0.15

Correlation

The correlation between COHR and ^GSPC is 0.39, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Drawdowns

COHR vs. ^GSPC - Drawdown Comparison

The maximum COHR drawdown since its inception was -80.89%, which is greater than ^GSPC's maximum drawdown of -56.78%. Use the drawdown chart below to compare losses from any high point for COHR and ^GSPC.

Drawdown Indicators

	COHR	^GSPC	Difference
Max Drawdown Largest peak-to-trough decline	-80.89%	-56.78%	-24.11%
Max Drawdown (1Y) Largest decline over 1 year	-26.52%	-9.10%	-17.42%
Max Drawdown (5Y) Largest decline over 5 years	-66.13%	-25.43%	-40.70%
Max Drawdown (10Y) Largest decline over 10 years	-72.22%	-33.92%	-38.30%
Current Drawdown Current decline from peak	-17.10%	-5.67%	-11.43%
Average Drawdown Average peak-to-trough decline	-35.18%	-10.75%	-24.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.05%	2.62%	+7.43%

Volatility

COHR vs. ^GSPC - Volatility Comparison

Coherent, Inc. (COHR) has a higher volatility of 27.09% compared to S&P 500 Index (^GSPC) at 5.29%. This indicates that COHR's price experiences larger fluctuations and is considered to be riskier than ^GSPC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COHR	^GSPC	Difference
Volatility (1M) Calculated over the trailing 1-month period	27.09%	5.29%	+21.80%
Volatility (6M) Calculated over the trailing 6-month period	54.88%	9.55%	+45.33%
Volatility (1Y) Calculated over the trailing 1-year period	75.09%	18.33%	+56.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	59.93%	16.90%	+43.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	55.47%	18.04%	+37.43%