IYW vs. OPTT
IYW (iShares U.S. Technology ETF) is Technology Equities fund tracking the Russell 1000 Technology RIC 22.5/45 Capped Index, while OPTT (Ocean Power Technologies, Inc.) is a stock. Over the past 10 years, IYW returned 25.63%/yr vs -42.55%/yr for OPTT. At a 0.23 correlation, their price movements are largely independent.
Performance
IYW vs. OPTT - Performance Comparison
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Returns By Period
In the year-to-date period, IYW achieves a 22.66% return, which is significantly higher than OPTT's -8.60% return. Over the past 10 years, IYW has outperformed OPTT with an annualized return of 25.63%, while OPTT has yielded a comparatively lower -42.55% annualized return.
IYW
- 1D
- 0.61%
- 1M
- 1.73%
- YTD
- 22.66%
- 6M
- 23.40%
- 1Y
- 47.94%
- 3Y*
- 32.06%
- 5Y*
- 21.19%
- 10Y*
- 25.63%
OPTT
- 1D
- -7.05%
- 1M
- -19.42%
- YTD
- -8.60%
- 6M
- -35.10%
- 1Y
- -49.32%
- 3Y*
- -25.04%
- 5Y*
- -36.18%
- 10Y*
- -42.55%
IYW vs. OPTT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IYW iShares U.S. Technology ETF | 22.66% | 25.38% | 30.25% | 65.44% | -34.83% | 35.44% | 47.45% | 46.64% | -0.93% | 36.60% |
OPTT Ocean Power Technologies, Inc. | -8.60% | -70.59% | 222.78% | -29.79% | -69.59% | -44.98% | 209.20% | -87.21% | -69.08% | -62.71% |
Correlation
The correlation between IYW and OPTT is 0.44, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.44 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.30 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.31 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.26 |
Correlation (All Time) Calculated using the full available price history since Apr 25, 2007 | 0.23 |
Over the past year, IYW and OPTT have become more correlated (0.44) than their long-term average of 0.23, meaning their price movements have been converging.
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Return for Risk
IYW vs. OPTT — Risk / Return Rank
IYW
OPTT
IYW vs. OPTT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares U.S. Technology ETF (IYW) and Ocean Power Technologies, Inc. (OPTT). 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.
| IYW | OPTT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.72 | ||
| Sortino ratioReturn per unit of downside risk | +3.01 | ||
| Omega ratioGain probability vs. loss probability | 1.38 | 0.98 | +0.40 |
| Calmar ratioReturn relative to maximum drawdown | 2.70 | -0.73 | +3.43 |
| Martin ratioReturn relative to average drawdown | 8.68 | -1.07 | +9.75 |
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Drawdowns
IYW vs. OPTT - Drawdown Comparison
The maximum IYW drawdown since its inception was -81.90%, smaller than the maximum OPTT drawdown of -100.00%. Use the drawdown chart below to compare losses from any high point for IYW and OPTT.
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Drawdown Indicators
| IYW | OPTT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -81.90% | -100.00% | +18.10% |
Max Drawdown (1Y)Largest decline over 1 year | -17.81% | -67.80% | +49.99% |
Max Drawdown (3Y)Largest decline over 3 years | -26.47% | -83.20% | +56.73% |
Max Drawdown (5Y)Largest decline over 5 years | -39.44% | -95.71% | +56.27% |
Max Drawdown (10Y)Largest decline over 10 years | -39.44% | -99.95% | +60.51% |
Current DrawdownCurrent decline from peak | -5.81% | -99.99% | +94.18% |
Average DrawdownAverage peak-to-trough decline | -34.62% | -88.52% | +53.90% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.54% | 46.08% | -40.54% |
Volatility
IYW vs. OPTT - Volatility Comparison
The current volatility for iShares U.S. Technology ETF (IYW) is 9.41%, while Ocean Power Technologies, Inc. (OPTT) has a volatility of 36.85%. This indicates that IYW experiences smaller price fluctuations and is considered to be less risky than OPTT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IYW | OPTT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.41% | 36.85% | -27.44% |
Volatility (6M)Calculated over the trailing 6-month period | 17.67% | 85.09% | -67.42% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.47% | 104.79% | -83.32% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 26.07% | 121.99% | -95.92% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.20% | 127.48% | -102.28% |
Dividends
IYW vs. OPTT - Dividend Comparison
IYW's dividend yield for the trailing twelve months is around 0.11%, while OPTT has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IYW iShares U.S. Technology ETF | 0.11% | 0.14% | 0.21% | 0.34% | 0.50% | 0.31% | 0.56% | 0.72% | 0.92% | 0.82% | 1.14% | 1.12% |
OPTT Ocean Power Technologies, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
IYW and OPTT have a correlation of 0.44, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
OPTT has higher volatility (36.85%) compared to IYW (9.41%). In terms of maximum drawdown, IYW dropped -81.90% vs OPTT's -100.00%.
IYW currently has the higher Sharpe Ratio (2.24 vs -0.47), 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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