TER vs. AEHR
TER (Teradyne, Inc.) and AEHR (Aehr Test Systems) are both stocks. Both operate in the Semiconductor Equipment & Materials industry within the Technology sector. Over the past 10 years, TER returned 37.05%/yr vs 50.48%/yr for AEHR. At a 0.23 correlation, their price movements are largely independent.
Performance
TER vs. AEHR - Performance Comparison
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Returns By Period
In the year-to-date period, TER achieves a 117.22% return, which is significantly lower than AEHR's 407.13% return. Over the past 10 years, TER has underperformed AEHR with an annualized return of 37.05%, while AEHR has yielded a comparatively higher 50.48% annualized return.
TER
- 1D
- -8.07%
- 1M
- 17.21%
- YTD
- 117.22%
- 6M
- 111.82%
- 1Y
- 382.14%
- 3Y*
- 59.28%
- 5Y*
- 26.82%
- 10Y*
- 37.05%
AEHR
- 1D
- -9.65%
- 1M
- 7.76%
- YTD
- 407.13%
- 6M
- 349.67%
- 1Y
- 810.13%
- 3Y*
- 36.85%
- 5Y*
- 107.37%
- 10Y*
- 50.48%
TER vs. AEHR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TER Teradyne, Inc. | 117.22% | 54.39% | 16.51% | 24.78% | -46.35% | 36.81% | 76.73% | 118.93% | -24.37% | 66.16% |
AEHR Aehr Test Systems | 407.13% | 21.41% | -37.32% | 31.99% | -16.87% | 855.73% | 26.50% | 41.84% | -47.97% | 12.45% |
Correlation
The correlation between TER and AEHR is 0.60, 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 | 0.60 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.57 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.58 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.43 |
Correlation (All Time) Calculated using the full available price history since Aug 15, 1997 | 0.23 |
Over the past year, TER and AEHR have become more correlated (0.60) than their long-term average of 0.23, meaning their price movements have been converging.
Fundamentals
TER:
$66.23B
AEHR:
$3.14B
TER:
$5.38
AEHR:
-$0.38
TER:
17.62
AEHR:
68.38
TER:
21.07
AEHR:
22.64
TER:
$3.79B
AEHR:
$45.26M
TER:
$2.23B
AEHR:
$13.90M
TER:
$1.11B
AEHR:
-$13.56M
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Return for Risk
TER vs. AEHR — Risk / Return Rank
TER
AEHR
TER vs. AEHR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Teradyne, Inc. (TER) and Aehr Test Systems (AEHR). 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 | AEHR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.21 | ||
| Sortino ratioReturn per unit of downside risk | +0.09 | ||
| Omega ratioGain probability vs. loss probability | 1.63 | 1.51 | +0.12 |
| Calmar ratioReturn relative to maximum drawdown | 14.41 | 19.34 | -4.93 |
| Martin ratioReturn relative to average drawdown | 51.16 | 43.44 | +7.72 |
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Drawdowns
TER vs. AEHR - Drawdown Comparison
The maximum TER drawdown since its inception was -97.30%, roughly equal to the maximum AEHR drawdown of -97.98%. Use the drawdown chart below to compare losses from any high point for TER and AEHR.
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Drawdown Indicators
| TER | AEHR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -97.30% | -97.98% | +0.68% |
Max Drawdown (1Y)Largest decline over 1 year | -26.73% | -42.31% | +15.58% |
Max Drawdown (3Y)Largest decline over 3 years | -58.18% | -87.37% | +29.19% |
Max Drawdown (5Y)Largest decline over 5 years | -59.12% | -87.37% | +28.25% |
Max Drawdown (10Y)Largest decline over 10 years | -59.12% | -87.37% | +28.25% |
Current DrawdownCurrent decline from peak | -8.07% | -12.17% | +4.10% |
Average DrawdownAverage peak-to-trough decline | -58.64% | -79.53% | +20.89% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 7.51% | 18.80% | -11.29% |
Volatility
TER vs. AEHR - Volatility Comparison
The current volatility for Teradyne, Inc. (TER) is 26.91%, while Aehr Test Systems (AEHR) has a volatility of 38.64%. This indicates that TER experiences smaller price fluctuations and is considered to be less risky than AEHR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TER | AEHR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 26.91% | 38.64% | -11.73% |
Volatility (6M)Calculated over the trailing 6-month period | 54.52% | 88.90% | -34.38% |
Volatility (1Y)Calculated over the trailing 1-year period | 68.41% | 119.59% | -51.18% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 50.62% | 110.16% | -59.54% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 45.51% | 94.02% | -48.51% |
Dividends
TER vs. AEHR - Dividend Comparison
TER's dividend yield for the trailing twelve months is around 0.12%, while AEHR has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AEHR Aehr Test Systems | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
TER Teradyne, Inc. | 0.12% | 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. AEHR - Financials Comparison
This section allows you to compare key financial metrics between Teradyne, Inc. and Aehr Test Systems. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
TER vs. AEHR - Profitability Comparison
TER - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Teradyne, Inc. reported a gross profit of 780.95M and revenue of 1.28B. Therefore, the gross margin over that period was 60.9%.
AEHR - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Aehr Test Systems reported a gross profit of 3.37M and revenue of 10.31M. Therefore, the gross margin over that period was 32.7%.
TER - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Teradyne, Inc. reported an operating income of 473.00M and revenue of 1.28B, resulting in an operating margin of 36.9%.
AEHR - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Aehr Test Systems reported an operating income of -4.23M and revenue of 10.31M, resulting in an operating margin of -41.0%.
TER - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Teradyne, Inc. reported a net income of 398.91M and revenue of 1.28B, resulting in a net margin of 31.1%.
AEHR - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Aehr Test Systems reported a net income of -3.20M and revenue of 10.31M, resulting in a net margin of -31.1%.
Frequently Asked Questions
TER and AEHR have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AEHR has higher volatility (38.64%) compared to TER (26.91%). In terms of maximum drawdown, TER dropped -97.30% vs AEHR's -97.98%.
AEHR currently has the higher Sharpe Ratio (6.84 vs 5.63), 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.
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