IRBT vs. TER
IRBT (iRobot Corporation) and TER (Teradyne, Inc.) are both stocks. Both are in the Technology sector — IRBT in Consumer Electronics, TER in Semiconductor Equipment & Materials. Over the past 10 years, IRBT returned -35.64%/yr vs 36.21%/yr for TER. At a 0.37 correlation, their price movements are largely independent.
Performance
IRBT vs. TER - Performance Comparison
Loading charts...
Returns By Period
Over the past 10 years, IRBT has underperformed TER with an annualized return of -35.64%, while TER has yielded a comparatively higher 36.21% annualized return.
IRBT
- 1D
- 0.00%
- 1M
- 0.00%
- YTD
- 0.00%
- 6M
- -86.24%
- 1Y
- -85.65%
- 3Y*
- -77.32%
- 5Y*
- -65.65%
- 10Y*
- -35.64%
TER
- 1D
- 4.34%
- 1M
- 21.45%
- YTD
- 111.82%
- 6M
- 110.17%
- 1Y
- 404.26%
- 3Y*
- 58.93%
- 5Y*
- 25.97%
- 10Y*
- 36.21%
IRBT vs. TER - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IRBT iRobot Corporation | 0.00% | -93.98% | -79.97% | -19.59% | -26.94% | -17.95% | 58.58% | -39.54% | 9.18% | 31.22% |
TER Teradyne, Inc. | 111.82% | 54.39% | 16.51% | 24.78% | -46.35% | 36.81% | 76.73% | 118.93% | -24.37% | 66.16% |
Correlation
The correlation between IRBT and TER is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.26 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.33 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.34 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.36 |
Correlation (All Time) Calculated using the full available price history since Nov 10, 2005 | 0.37 |
The correlation between IRBT and TER shifts across timeframes, from 0.26 (1 year) to 0.37 (all time), reflecting how their relationship changes across market environments.
Fundamentals
IRBT:
$16.26M
TER:
$64.58B
IRBT:
-$6.11
TER:
$5.38
IRBT:
0.03
TER:
17.19
IRBT:
$547.00M
TER:
$3.79B
IRBT:
$120.28M
TER:
$2.23B
IRBT:
-$181.19M
TER:
$1.11B
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
IRBT vs. TER — Risk / Return Rank
IRBT
TER
IRBT vs. TER - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iRobot Corporation (IRBT) and Teradyne, Inc. (TER). 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.
| IRBT | TER | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -0.53 | 6.28 | -6.81 |
Sortino ratioReturn per unit of downside risk | -0.46 | 4.92 | -5.38 |
Omega ratioGain probability vs. loss probability | 0.92 | 1.70 | -0.79 |
Calmar ratioReturn relative to maximum drawdown | -0.98 | 15.25 | -16.22 |
Martin ratioReturn relative to average drawdown | -1.42 | 55.87 | -57.29 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| IRBT | TER | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.53 | 6.28 | -6.81 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.64 | 0.53 | -1.17 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.43 | 0.81 | -1.24 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.26 | 0.23 | -0.48 |
Drawdowns
IRBT vs. TER - Drawdown Comparison
The maximum IRBT drawdown since its inception was -99.71%, roughly equal to the maximum TER drawdown of -97.30%. Use the drawdown chart below to compare losses from any high point for IRBT and TER.
Loading charts...
Drawdown Indicators
| IRBT | TER | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.71% | -97.30% | -2.41% |
Max Drawdown (1Y)Largest decline over 1 year | -91.64% | -26.73% | -64.91% |
Max Drawdown (3Y)Largest decline over 3 years | -99.09% | -58.18% | -40.91% |
Max Drawdown (5Y)Largest decline over 5 years | -99.54% | -59.12% | -40.42% |
Max Drawdown (10Y)Largest decline over 10 years | -99.71% | -59.12% | -40.59% |
Current DrawdownCurrent decline from peak | -99.71% | -1.97% | -97.74% |
Average DrawdownAverage peak-to-trough decline | -46.30% | -58.71% | +12.41% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 58.71% | 7.28% | +51.43% |
Volatility
IRBT vs. TER - Volatility Comparison
The current volatility for iRobot Corporation (IRBT) is 0.00%, while Teradyne, Inc. (TER) has a volatility of 20.31%. This indicates that IRBT experiences smaller price fluctuations and is considered to be less risky than TER based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| IRBT | TER | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.00% | 20.31% | -20.31% |
Volatility (6M)Calculated over the trailing 6-month period | 175.47% | 50.09% | +125.38% |
Volatility (1Y)Calculated over the trailing 1-year period | 169.92% | 64.87% | +105.05% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 104.34% | 49.61% | +54.73% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 83.18% | 44.96% | +38.22% |
Dividends
IRBT vs. TER - Dividend Comparison
IRBT has not paid dividends to shareholders, while TER's dividend yield for the trailing twelve months is around 0.12%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IRBT iRobot Corporation | 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
IRBT vs. TER - Financials Comparison
This section allows you to compare key financial metrics between iRobot Corporation and Teradyne, Inc.. 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
IRBT vs. TER - Profitability Comparison
IRBT - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, iRobot Corporation reported a gross profit of 45.25M and revenue of 145.83M. Therefore, the gross margin over that period was 31.0%.
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%.
IRBT - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, iRobot Corporation reported an operating income of -17.67M and revenue of 145.83M, resulting in an operating margin of -12.1%.
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%.
IRBT - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, iRobot Corporation reported a net income of -21.53M and revenue of 145.83M, resulting in a net margin of -14.8%.
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%.
Frequently Asked Questions
IRBT and TER have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TER has higher volatility (20.31%) compared to IRBT (0.00%). In terms of maximum drawdown, IRBT dropped -99.71% vs TER's -97.30%.
TER currently has the higher Sharpe Ratio (6.28 vs -0.53), 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.
Find the right allocation for IRBT and TER
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer