TER vs. SEI

Last updated Aug 1, 2026

TER (Teradyne, Inc.) and SEI (Solaris Energy Infrastructure, Inc) are both stocks. TER operates in Semiconductor Equipment & Materials (Technology), while SEI operates in Oil & Gas Equipment & Services (Energy). Over the past 5 years, TER returned 24.17%/yr vs 47.96%/yr for SEI. Their 0.29 correlation means their historical movements had little consistent relationship.

Performance

TER vs. SEI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Teradyne, Inc. (TER) 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, TER achieves a 90.11% return, which is significantly higher than SEI's 12.30% return.

TER

• 1D: 0.60%
• 1M: -13.96%
• 6M: 52.66%
• YTD: 90.11%
• 1Y: 243.14%
• 3Y*: 49.54%
• 5Y*: 24.17%
• 10Y*: 34.90%
• ALL TIME*: 11.43%

SEI

• 1D: 0.25%
• 1M: -29.98%
• 6M: -6.46%
• YTD: 12.30%
• 1Y: 58.96%
• 3Y*: 73.99%
• 5Y*: 47.96%
• 10Y*: —
• ALL TIME*: 20.73%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
SEI Solaris Energy Infrastructure, Inc	$200.05M	$228.81M	$190.63M
TER Teradyne, Inc.	$1.53B	$1.39B	$1.68B

TER vs. SEI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TER Teradyne, Inc.	90.11%	54.39%	16.51%	24.78%	-46.35%	36.81%	76.73%	118.93%	-24.37%	18.14%
SEI Solaris Energy Infrastructure, Inc	12.30%	62.29%	277.66%	-15.75%	57.46%	-15.55%	-38.09%	19.10%	-43.06%	75.35%

Correlation

The correlation between TER and SEI is 0.53, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.53
Correlation (3Y) Balances recent behavior with more history.	0.34
Correlation (5Y) Shows whether the relationship held over a longer period.	0.30
Correlation (All Time) Calculated using the full available price history since May 12, 2017	0.29

Over the past year, TER and SEI have become more correlated (0.53) than their long-term average of 0.29, meaning their price movements have been converging.

Fundamentals

Market Cap TER : $57.56B SEI : $3.15B
EPS TER : $7.28 SEI : $0.97
PE Ratio TER : 50.51 SEI : 52.86
PS Ratio TER : 13.02 SEI : 3.54
PB Ratio TER : 0.02 SEI : 3.26
Total Revenue (TTM) TER : $4.46B SEI : $692.11M
Gross Profit (TTM) TER : $2.65B SEI : $235.28M
EBITDA (TTM) TER : $1.42B SEI : $249.65M

Return for Risk

TER vs. SEI — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

TER

TER Risk / Return Rank: 96
TER Sharpe Ratio Rank: 98
TER Sortino Ratio Rank: 94
TER Omega Ratio Rank: 94
TER Calmar Ratio Rank: 98
TER Martin Ratio Rank: 98

SEI

SEI Risk / Return Rank: 71
SEI Sharpe Ratio Rank: 70
SEI Sortino Ratio Rank: 70
SEI Omega Ratio Rank: 68
SEI Calmar Ratio Rank: 70
SEI Martin Ratio Rank: 78

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

TER vs. SEI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Teradyne, Inc. (TER) 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.

	TER	SEI	Difference
Sharpe ratio: Return per unit of total volatility	3.31	0.76	+2.55
Sortino ratio: Return per unit of downside risk	3.19	1.49	+1.70
Omega ratio: Gain probability vs. loss probability	1.44	1.18	+0.26
Calmar ratio: Return relative to maximum drawdown	7.20	1.24	+5.96
Martin ratio: Return relative to average drawdown	22.29	4.72	+17.57

TER vs. SEI - Sharpe Ratio Comparison

The current TER Sharpe Ratio is 3.31, which is higher than the SEI Sharpe Ratio of 0.76. The chart below compares the historical Sharpe Ratios of TER 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

TER vs. SEI - Drawdown Comparison

The maximum TER drawdown since its inception was -97.30%, which is greater than SEI's maximum drawdown of -79.49%. Use the drawdown chart below to compare losses from any high point for TER and SEI.

Drawdown Indicators

	TER	SEI	Difference
Max Drawdown Largest peak-to-trough decline	-97.30%	-79.49%	-17.81%
Max Drawdown (1Y) Largest decline over 1 year	-33.98%	-47.61%	+13.63%
Max Drawdown (3Y) Largest decline over 3 years	-58.18%	-55.37%	-2.81%
Max Drawdown (5Y) Largest decline over 5 years	-59.12%	-55.37%	-3.75%
Max Drawdown (10Y) Largest decline over 10 years	-59.12%	—	—
Current Drawdown Current decline from peak	-24.01%	-37.97%	+13.96%
Average Drawdown Average peak-to-trough decline	-58.54%	-38.32%	-20.22%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.96%	12.78%	-1.82%

Volatility

TER vs. SEI - Volatility Comparison

Teradyne, Inc. (TER) and Solaris Energy Infrastructure, Inc (SEI) have volatilities of 29.42% and 30.50%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TER	SEI	Difference
Volatility (1M) Calculated over the trailing 1-month period	29.42%	30.50%	-1.08%
Volatility (6M) Calculated over the trailing 6-month period	63.50%	57.43%	+6.07%
Volatility (1Y) Calculated over the trailing 1-year period	73.88%	77.63%	-3.75%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	52.71%	68.06%	-15.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	46.68%	62.88%	-16.20%

Dividends

TER vs. SEI - Dividend Comparison

TER's dividend yield for the trailing twelve months is around 0.14%, less than SEI's 0.93% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SEI Solaris Energy Infrastructure, Inc	0.93%	1.04%	1.67%	5.65%	4.23%	6.41%	5.16%	2.89%	0.83%	0.00%	0.00%	0.00%
TER Teradyne, Inc.	0.14%	0.25%	0.38%	0.41%	0.50%	0.24%	0.33%	0.53%	1.15%	0.67%	0.94%	1.16%

Financials

TER vs. SEI - Profitability Comparison

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

TER - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Teradyne, Inc. reported a gross profit of 794.62M and revenue of 1.33B. Therefore, the gross margin over that period was 59.8%.

SEI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 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%.

TER - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Teradyne, Inc. reported an operating income of 437.81M and revenue of 1.33B, resulting in an operating margin of 32.9%.

SEI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 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%.

TER - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Teradyne, Inc. reported a net income of 374.53M and revenue of 1.33B, resulting in a net margin of 28.2%.

SEI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Aug 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 TER and SEI in my portfolio?

TER and SEI have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TER or SEI?

SEI has higher volatility (30.50%) compared to TER (29.42%). In terms of maximum drawdown, TER dropped -97.30% vs SEI's -79.49%.

Which has better risk-adjusted returns?

TER currently has the higher Sharpe Ratio (3.31 vs 0.76), 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.