KOPN vs. INDEX

Last updated Jun 26, 2026

KOPN (Kopin Corporation) is a stock, while INDEX (CYBER HORNET S&P 500) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, KOPN returned 5.88%/yr vs 13.11%/yr for INDEX. At a 0.38 correlation, their price movements are largely independent.

Performance

KOPN vs. INDEX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Kopin Corporation (KOPN) and CYBER HORNET S&P 500 (INDEX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, KOPN achieves a 61.97% return, which is significantly higher than INDEX's 7.97% return. Over the past 10 years, KOPN has underperformed INDEX with an annualized return of 5.88%, while INDEX has yielded a comparatively higher 13.11% annualized return.

KOPN

• 1D: -1.56%
• 1M: -32.44%
• YTD: 61.97%
• 6M: 54.69%
• 1Y: 138.36%
• 3Y*: 23.54%
• 5Y*: -14.01%
• 10Y*: 5.88%

INDEX

• 1D: -0.10%
• 1M: -2.02%
• YTD: 7.97%
• 6M: 6.69%
• 1Y: 22.14%
• 3Y*: 19.18%
• 5Y*: 10.88%
• 10Y*: 13.11%

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

KOPN vs. INDEX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
KOPN Kopin Corporation	61.97%	72.06%	-33.00%	63.71%	-69.68%	68.31%	505.83%	-59.85%	-68.78%	12.68%
INDEX CYBER HORNET S&P 500	7.97%	17.77%	24.73%	10.58%	-11.84%	29.10%	12.75%	28.98%	-7.83%	18.70%

Correlation

The correlation between KOPN and INDEX is 0.52, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.52
Correlation (3Y) Calculated over the trailing 3-year period	0.47
Correlation (5Y) Calculated over the trailing 5-year period	0.46
Correlation (10Y) Calculated over the trailing 10-year period	0.38
Correlation (All Time) Calculated using the full available price history since May 11, 2015	0.38

The correlation between KOPN and INDEX shifts across timeframes, from 0.38 (10 years) to 0.52 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

KOPN vs. INDEX — Risk / Return Rank

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

KOPN

KOPN Risk / Return Rank: 80
KOPN Sharpe Ratio Rank: 82
KOPN Sortino Ratio Rank: 81
KOPN Omega Ratio Rank: 77
KOPN Calmar Ratio Rank: 81
KOPN Martin Ratio Rank: 77

INDEX

INDEX Risk / Return Rank: 55
INDEX Sharpe Ratio Rank: 52
INDEX Sortino Ratio Rank: 48
INDEX Omega Ratio Rank: 50
INDEX Calmar Ratio Rank: 55
INDEX Martin Ratio Rank: 68

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.

KOPN vs. INDEX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Kopin Corporation (KOPN) and CYBER HORNET S&P 500 (INDEX). 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.

	KOPN	INDEX	Difference
Sharpe ratio: Return per unit of total volatility	1.43	1.79	-0.36
Sortino ratio: Return per unit of downside risk	2.25	2.45	-0.19
Omega ratio: Gain probability vs. loss probability	1.26	1.32	-0.07
Calmar ratio: Return relative to maximum drawdown	2.50	2.49	0.00
Martin ratio: Return relative to average drawdown	4.90	11.18	-6.28

KOPN vs. INDEX - Sharpe Ratio Comparison

The current KOPN Sharpe Ratio is 1.43, which is comparable to the INDEX Sharpe Ratio of 1.79. The chart below compares the historical Sharpe Ratios of KOPN and INDEX, 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

KOPN vs. INDEX - Drawdown Comparison

The maximum KOPN drawdown since its inception was -99.57%, which is greater than INDEX's maximum drawdown of -38.82%. Use the drawdown chart below to compare losses from any high point for KOPN and INDEX.

Drawdown Indicators

	KOPN	INDEX	Difference
Max Drawdown Largest peak-to-trough decline	-99.57%	-38.82%	-60.75%
Max Drawdown (1Y) Largest decline over 1 year	-55.73%	-8.93%	-46.80%
Max Drawdown (3Y) Largest decline over 3 years	-78.27%	-18.75%	-59.52%
Max Drawdown (5Y) Largest decline over 5 years	-93.23%	-21.52%	-71.71%
Max Drawdown (10Y) Largest decline over 10 years	-95.58%	-38.82%	-56.76%
Current Drawdown Current decline from peak	-92.28%	-3.20%	-89.08%
Average Drawdown Average peak-to-trough decline	-78.03%	-4.62%	-73.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	28.35%	1.99%	+26.36%

Volatility

KOPN vs. INDEX - Volatility Comparison

Kopin Corporation (KOPN) has a higher volatility of 31.56% compared to CYBER HORNET S&P 500 (INDEX) at 4.91%. This indicates that KOPN's price experiences larger fluctuations and is considered to be riskier than INDEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	KOPN	INDEX	Difference
Volatility (1M) Calculated over the trailing 1-month period	31.56%	4.91%	+26.65%
Volatility (6M) Calculated over the trailing 6-month period	70.34%	9.91%	+60.43%
Volatility (1Y) Calculated over the trailing 1-year period	97.73%	12.50%	+85.23%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	89.47%	16.84%	+72.63%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	87.91%	18.65%	+69.26%

Dividends

KOPN vs. INDEX - Dividend Comparison

KOPN has not paid dividends to shareholders, while INDEX's dividend yield for the trailing twelve months is around 0.96%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
INDEX CYBER HORNET S&P 500	0.96%	1.04%	1.97%	1.56%	3.25%	1.81%	1.53%	1.61%	3.09%	1.15%
KOPN Kopin Corporation	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both KOPN and INDEX in my portfolio?

KOPN and INDEX have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, KOPN or INDEX?

KOPN has higher volatility (31.56%) compared to INDEX (4.91%). In terms of maximum drawdown, KOPN dropped -99.57% vs INDEX's -38.82%.

Which has better risk-adjusted returns?

INDEX currently has the higher Sharpe Ratio (1.79 vs 1.43), 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.