TSEM vs. SEI

Last updated Jun 17, 2026

TSEM (Tower Semiconductor Ltd) and SEI (Solaris Energy Infrastructure, Inc) are both stocks. TSEM operates in Semiconductors (Technology), while SEI operates in Oil & Gas Equipment & Services (Energy). Over the past 5 years, TSEM returned 57.49%/yr vs 57.53%/yr for SEI. At a 0.25 correlation, their price movements are largely independent.

Performance

TSEM vs. SEI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Tower Semiconductor Ltd (TSEM) and Solaris Energy Infrastructure, Inc (SEI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TSEM achieves a 128.69% return, which is significantly higher than SEI's 66.35% return.

TSEM

• 1D: -6.39%
• 1M: -1.99%
• YTD: 128.69%
• 6M: 133.79%
• 1Y: 564.84%
• 3Y*: 86.84%
• 5Y*: 57.49%
• 10Y*: 36.50%

SEI

• 1D: -2.46%
• 1M: -2.92%
• YTD: 66.35%
• 6M: 75.35%
• 1Y: 172.00%
• 3Y*: 115.76%
• 5Y*: 57.53%
• 10Y*: —

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

TSEM vs. SEI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TSEM Tower Semiconductor Ltd	128.69%	127.96%	68.77%	-29.35%	8.87%	53.68%	7.32%	63.23%	-56.75%	37.09%
SEI Solaris Energy Infrastructure, Inc	66.35%	62.29%	277.66%	-15.75%	57.46%	-15.55%	-38.09%	19.10%	-43.06%	75.35%

Correlation

The correlation between TSEM and SEI is 0.28, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.28
Correlation (3Y) Calculated over the trailing 3-year period	0.26
Correlation (5Y) Calculated over the trailing 5-year period	0.24
Correlation (All Time) Calculated using the full available price history since May 12, 2017	0.25

Fundamentals

Market Cap TSEM : $30.70B SEI : $3.77B
EPS TSEM : $2.15 SEI : $1.03
PE Ratio TSEM : 124.65 SEI : 74.28
PS Ratio TSEM : 18.86 SEI : 4.97
PB Ratio TSEM : 10.32 SEI : 4.83
Total Revenue (TTM) TSEM : $1.62B SEI : $692.11M
Gross Profit (TTM) TSEM : $401.63M SEI : $235.28M
EBITDA (TTM) TSEM : $571.93M SEI : $249.65M

Return for Risk

TSEM vs. SEI — Risk / Return Rank

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

TSEM

TSEM Risk / Return Rank: 99
TSEM Sharpe Ratio Rank: 100
TSEM Sortino Ratio Rank: 99
TSEM Omega Ratio Rank: 98
TSEM Calmar Ratio Rank: 99
TSEM Martin Ratio Rank: 100

SEI

SEI Risk / Return Rank: 90
SEI Sharpe Ratio Rank: 92
SEI Sortino Ratio Rank: 87
SEI Omega Ratio Rank: 84
SEI Calmar Ratio Rank: 95
SEI Martin Ratio Rank: 94

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.

TSEM vs. SEI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Tower Semiconductor Ltd (TSEM) and Solaris Energy Infrastructure, Inc (SEI). 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.

	TSEM	SEI	Difference
Sharpe ratio: Return per unit of total volatility	8.24	2.37	+5.87
Sortino ratio: Return per unit of downside risk	5.76	2.78	+2.98
Omega ratio: Gain probability vs. loss probability	1.74	1.34	+0.41
Calmar ratio: Return relative to maximum drawdown	22.76	6.55	+16.21
Martin ratio: Return relative to average drawdown	79.00	16.48	+62.52

TSEM vs. SEI - Sharpe Ratio Comparison

The current TSEM Sharpe Ratio is 8.24, which is higher than the SEI Sharpe Ratio of 2.37. The chart below compares the historical Sharpe Ratios of TSEM and SEI, 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

TSEM vs. SEI - Drawdown Comparison

The maximum TSEM drawdown since its inception was -99.75%, which is greater than SEI's maximum drawdown of -79.49%. Use the drawdown chart below to compare losses from any high point for TSEM and SEI.

Drawdown Indicators

	TSEM	SEI	Difference
Max Drawdown Largest peak-to-trough decline	-99.75%	-79.49%	-20.26%
Max Drawdown (1Y) Largest decline over 1 year	-25.04%	-26.43%	+1.39%
Max Drawdown (3Y) Largest decline over 3 years	-46.78%	-55.37%	+8.59%
Max Drawdown (5Y) Largest decline over 5 years	-55.39%	-55.37%	-0.02%
Max Drawdown (10Y) Largest decline over 10 years	-62.28%	—	—
Current Drawdown Current decline from peak	-55.11%	-2.92%	-52.19%
Average Drawdown Average peak-to-trough decline	-85.37%	-38.58%	-46.79%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.20%	10.48%	-3.28%

Volatility

TSEM vs. SEI - Volatility Comparison

Tower Semiconductor Ltd (TSEM) has a higher volatility of 27.11% compared to Solaris Energy Infrastructure, Inc (SEI) at 22.10%. This indicates that TSEM's price experiences larger fluctuations and is considered to be riskier than SEI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TSEM	SEI	Difference
Volatility (1M) Calculated over the trailing 1-month period	27.11%	22.10%	+5.01%
Volatility (6M) Calculated over the trailing 6-month period	56.18%	50.80%	+5.38%
Volatility (1Y) Calculated over the trailing 1-year period	69.35%	73.21%	-3.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	47.56%	66.84%	-19.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	43.75%	62.28%	-18.53%

Dividends

TSEM vs. SEI - Dividend Comparison

TSEM has not paid dividends to shareholders, while SEI's dividend yield for the trailing twelve months is around 0.63%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
SEI Solaris Energy Infrastructure, Inc	0.63%	1.04%	1.67%	5.65%	4.23%	6.41%	5.16%	2.89%	0.83%
TSEM Tower Semiconductor Ltd	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

TSEM vs. SEI - Profitability Comparison

The chart below illustrates the profitability comparison between Tower Semiconductor Ltd and Solaris Energy Infrastructure, Inc over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

TSEM - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Tower Semiconductor Ltd reported a gross profit of 110.95M and revenue of 413.63M. Therefore, the gross margin over that period was 26.8%.

SEI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Solaris Energy Infrastructure, Inc reported a gross profit of 72.72M and revenue of 196.24M. Therefore, the gross margin over that period was 37.1%.

TSEM - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Tower Semiconductor Ltd reported an operating income of 64.57M and revenue of 413.63M, resulting in an operating margin of 15.6%.

SEI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Solaris Energy Infrastructure, Inc reported an operating income of 50.56M and revenue of 196.24M, resulting in an operating margin of 25.8%.

TSEM - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Tower Semiconductor Ltd reported a net income of 65.03M and revenue of 413.63M, resulting in a net margin of 15.7%.

SEI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Solaris Energy Infrastructure, Inc reported a net income of 21.44M and revenue of 196.24M, resulting in a net margin of 10.9%.

Frequently Asked Questions

Can I hold both TSEM and SEI in my portfolio?

TSEM and SEI have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TSEM or SEI?

TSEM has higher volatility (27.11%) compared to SEI (22.10%). In terms of maximum drawdown, TSEM dropped -99.75% vs SEI's -79.49%.

Which has better risk-adjusted returns?

TSEM currently has the higher Sharpe Ratio (8.24 vs 2.37), 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.