KOSS vs. SPWR

Last updated Jun 23, 2026

KOSS (Koss Corporation) and SPWR (SunPower Corporation) are both stocks. Both are in the Technology sector — KOSS in Consumer Electronics, SPWR in Solar. At a 0.47 correlation, their price movements are largely independent.

Performance

KOSS vs. SPWR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Koss Corporation (KOSS) and SunPower Corporation (SPWR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

KOSS

• 1D: -2.48%
• 1M: -1.01%
• YTD: -5.07%
• 6M: -11.09%
• 1Y: -23.54%
• 3Y*: 3.35%
• 5Y*: -30.81%
• 10Y*: 7.04%

SPWR

• 1D: -11.02%
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

KOSS vs. SPWR - Yearly Performance Comparison

	2026 (YTD)
KOSS Koss Corporation	-2.24%
SPWR SunPower Corporation	-35.15%

Correlation

The correlation between KOSS and SPWR is 0.47, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 28, 2026	0.47

Fundamentals

Market Cap KOSS : $37.20M SPWR : $589.15M
EPS KOSS : -$0.12 SPWR : -$0.04
PS Ratio KOSS : 2.90 SPWR : 1.64
Total Revenue (TTM) KOSS : $12.84M SPWR : $308.76M
Gross Profit (TTM) KOSS : $4.57M SPWR : $149.79M
EBITDA (TTM) KOSS : -$2.26M SPWR : -$3.66M

Return for Risk

KOSS vs. SPWR — Risk / Return Rank

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

KOSS

KOSS Risk / Return Rank: 23
KOSS Sharpe Ratio Rank: 21
KOSS Sortino Ratio Rank: 21
KOSS Omega Ratio Rank: 23
KOSS Calmar Ratio Rank: 24
KOSS Martin Ratio Rank: 26

SPWR

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

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.

KOSS vs. SPWR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Koss Corporation (KOSS) and SunPower Corporation (SPWR). 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.

	KOSS	SPWR	Difference
Sharpe ratio: Return per unit of total volatility	-0.47	—	—
Sortino ratio: Return per unit of downside risk	-0.44	—	—
Omega ratio: Gain probability vs. loss probability	0.95	—	—
Calmar ratio: Return relative to maximum drawdown	-0.51	—	—
Martin ratio: Return relative to average drawdown	-0.82	—	—

Drawdowns

KOSS vs. SPWR - Drawdown Comparison

The maximum KOSS drawdown since its inception was -96.42%, which is greater than SPWR's maximum drawdown of -36.34%. Use the drawdown chart below to compare losses from any high point for KOSS and SPWR.

Drawdown Indicators

	KOSS	SPWR	Difference
Max Drawdown Largest peak-to-trough decline	-96.42%	-36.34%	-60.08%
Max Drawdown (1Y) Largest decline over 1 year	-46.24%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-73.78%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-90.72%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-96.42%	—	—
Current Drawdown Current decline from peak	-93.86%	-36.34%	-57.52%
Average Drawdown Average peak-to-trough decline	-52.01%	-17.94%	-34.07%
Ulcer Index Depth and duration of drawdowns from previous peaks	28.81%	—	—

Volatility

Volatility by Period

	KOSS	SPWR	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.55%	—	—
Volatility (6M) Calculated over the trailing 6-month period	33.87%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	50.20%	99.20%	-49.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	98.07%	99.20%	-1.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	190.36%	99.20%	+91.16%

Dividends

KOSS vs. SPWR - Dividend Comparison

Neither KOSS nor SPWR has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

KOSS vs. SPWR - Profitability Comparison

The chart below illustrates the profitability comparison between Koss Corporation and SunPower Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

KOSS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Koss Corporation reported a gross profit of 1.00M and revenue of 2.82M. Therefore, the gross margin over that period was 35.5%.

SPWR - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, SunPower Corporation reported a gross profit of 48.85M and revenue of 88.49M. Therefore, the gross margin over that period was 55.2%.

KOSS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Koss Corporation reported an operating income of -719.13K and revenue of 2.82M, resulting in an operating margin of -25.5%.

SPWR - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, SunPower Corporation reported an operating income of -1.12M and revenue of 88.49M, resulting in an operating margin of -1.3%.

KOSS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Koss Corporation reported a net income of -546.59K and revenue of 2.82M, resulting in a net margin of -19.4%.

SPWR - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, SunPower Corporation reported a net income of -1.12M and revenue of 88.49M, resulting in a net margin of -1.3%.

Frequently Asked Questions

Can I hold both KOSS and SPWR in my portfolio?

KOSS and SPWR have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.