WDFC vs. SIMO
WDFC (WD-40 Company) and SIMO (Silicon Motion Technology Corporation) are both stocks. WDFC operates in Specialty Chemicals (Basic Materials), while SIMO operates in Semiconductors (Technology). Over the past 10 years, WDFC returned 9.01%/yr vs 24.87%/yr for SIMO. At a 0.19 correlation, their price movements are largely independent.
Performance
WDFC vs. SIMO - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, WDFC achieves a 16.54% return, which is significantly lower than SIMO's 246.14% return. Over the past 10 years, WDFC has underperformed SIMO with an annualized return of 9.01%, while SIMO has yielded a comparatively higher 24.87% annualized return.
WDFC
- 1D
- 1.83%
- 1M
- 9.59%
- YTD
- 16.54%
- 6M
- 12.71%
- 1Y
- -2.27%
- 3Y*
- 9.03%
- 5Y*
- -0.75%
- 10Y*
- 9.01%
SIMO
- 1D
- -5.31%
- 1M
- 15.52%
- YTD
- 246.14%
- 6M
- 258.00%
- 1Y
- 363.95%
- 3Y*
- 68.42%
- 5Y*
- 40.99%
- 10Y*
- 24.87%
WDFC vs. SIMO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
WDFC WD-40 Company | 16.54% | -17.43% | 2.93% | 50.89% | -33.01% | -6.89% | 38.84% | 7.42% | 57.67% | 2.81% |
SIMO Silicon Motion Technology Corporation | 246.14% | 76.91% | -8.94% | -4.91% | -30.38% | 101.83% | -1.81% | 51.81% | -33.11% | 27.14% |
Correlation
The correlation between WDFC and SIMO is -0.10, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.10 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.02 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.06 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.11 |
Correlation (All Time) Calculated using the full available price history since Jun 30, 2005 | 0.19 |
The correlation between WDFC and SIMO shifts across timeframes, from -0.10 (1 year) to 0.19 (all time), reflecting how their relationship changes across market environments.
Fundamentals
WDFC:
$3.07B
SIMO:
$2.70B
WDFC:
$5.91
SIMO:
$17.93
WDFC:
38.47
SIMO:
17.79
WDFC:
4.92
SIMO:
0.14
WDFC:
4.83
SIMO:
2.69
WDFC:
11.43
SIMO:
2.99
WDFC:
$636.48M
SIMO:
$997.60M
WDFC:
$354.31M
SIMO:
$485.91M
WDFC:
$108.24M
SIMO:
$146.89M
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
WDFC vs. SIMO — Risk / Return Rank
WDFC
SIMO
WDFC vs. SIMO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for WD-40 Company (WDFC) and Silicon Motion Technology Corporation (SIMO). 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.
| WDFC | SIMO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -5.25 | ||
| Sortino ratioReturn per unit of downside risk | -5.28 | ||
| Omega ratioGain probability vs. loss probability | 1.01 | 1.70 | -0.69 |
| Calmar ratioReturn relative to maximum drawdown | -0.10 | 13.97 | -14.07 |
| Martin ratioReturn relative to average drawdown | -0.18 | 41.22 | -41.39 |
Loading charts...
Drawdowns
WDFC vs. SIMO - Drawdown Comparison
The maximum WDFC drawdown since its inception was -54.20%, smaller than the maximum SIMO drawdown of -93.19%. Use the drawdown chart below to compare losses from any high point for WDFC and SIMO.
Loading charts...
Drawdown Indicators
| WDFC | SIMO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -54.20% | -93.19% | +38.99% |
Max Drawdown (1Y)Largest decline over 1 year | -21.79% | -26.26% | +4.47% |
Max Drawdown (3Y)Largest decline over 3 years | -34.22% | -52.84% | +18.62% |
Max Drawdown (5Y)Largest decline over 5 years | -42.03% | -56.49% | +14.46% |
Max Drawdown (10Y)Largest decline over 10 years | -54.20% | -56.49% | +2.29% |
Current DrawdownCurrent decline from peak | -25.63% | -5.31% | -20.32% |
Average DrawdownAverage peak-to-trough decline | -13.26% | -32.33% | +19.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 13.33% | 8.88% | +4.45% |
Volatility
WDFC vs. SIMO - Volatility Comparison
The current volatility for WD-40 Company (WDFC) is 7.57%, while Silicon Motion Technology Corporation (SIMO) has a volatility of 25.42%. This indicates that WDFC experiences smaller price fluctuations and is considered to be less risky than SIMO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| WDFC | SIMO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.57% | 25.42% | -17.85% |
Volatility (6M)Calculated over the trailing 6-month period | 21.46% | 58.59% | -37.13% |
Volatility (1Y)Calculated over the trailing 1-year period | 26.80% | 70.99% | -44.19% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 30.70% | 50.67% | -19.97% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 29.49% | 45.40% | -15.91% |
Dividends
WDFC vs. SIMO - Dividend Comparison
WDFC's dividend yield for the trailing twelve months is around 1.73%, more than SIMO's 0.63% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SIMO Silicon Motion Technology Corporation | 0.63% | 2.16% | 3.70% | 0.82% | 2.31% | 1.62% | 2.89% | 2.45% | 3.45% | 1.68% | 1.51% | 1.88% |
WDFC WD-40 Company | 1.73% | 1.91% | 1.45% | 1.39% | 1.94% | 1.16% | 1.01% | 1.26% | 1.18% | 1.66% | 1.44% | 1.16% |
Financials
WDFC vs. SIMO - Financials Comparison
This section allows you to compare key financial metrics between WD-40 Company and Silicon Motion Technology Corporation. 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
WDFC vs. SIMO - Profitability Comparison
WDFC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, WD-40 Company reported a gross profit of 89.94M and revenue of 161.67M. Therefore, the gross margin over that period was 55.6%.
SIMO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Silicon Motion Technology Corporation reported a gross profit of 136.77M and revenue of 278.46M. Therefore, the gross margin over that period was 49.1%.
WDFC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, WD-40 Company reported an operating income of 26.29M and revenue of 161.67M, resulting in an operating margin of 16.3%.
SIMO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Silicon Motion Technology Corporation reported an operating income of 31.71M and revenue of 278.46M, resulting in an operating margin of 11.4%.
WDFC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, WD-40 Company reported a net income of 20.32M and revenue of 161.67M, resulting in a net margin of 12.6%.
SIMO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Silicon Motion Technology Corporation reported a net income of 47.75M and revenue of 278.46M, resulting in a net margin of 17.2%.
Frequently Asked Questions
WDFC and SIMO have a correlation of -0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SIMO has higher volatility (25.42%) compared to WDFC (7.57%). In terms of maximum drawdown, WDFC dropped -54.20% vs SIMO's -93.19%.
SIMO currently has the higher Sharpe Ratio (5.17 vs -0.09), 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 WDFC and SIMO
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