WLK vs. IEX
WLK (Westlake Corporation) and IEX (IDEX Corporation) are both stocks. WLK operates in Specialty Chemicals (Basic Materials), while IEX operates in Specialty Industrial Machinery (Industrials). Over the past 10 years, WLK returned 7.68%/yr vs 11.91%/yr for IEX. A 0.52 correlation means they provide meaningful diversification when combined.
Performance
WLK vs. IEX - Performance Comparison
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Returns By Period
In the year-to-date period, WLK achieves a 4.58% return, which is significantly lower than IEX's 25.19% return. Over the past 10 years, WLK has underperformed IEX with an annualized return of 7.68%, while IEX has yielded a comparatively higher 11.91% annualized return.
WLK
- 1D
- -1.89%
- 1M
- -13.16%
- YTD
- 4.58%
- 6M
- 5.50%
- 1Y
- 6.72%
- 3Y*
- -10.42%
- 5Y*
- -1.83%
- 10Y*
- 7.68%
IEX
- 1D
- -1.86%
- 1M
- 5.93%
- YTD
- 25.19%
- 6M
- 23.53%
- 1Y
- 30.03%
- 3Y*
- 4.31%
- 5Y*
- 1.50%
- 10Y*
- 11.91%
WLK vs. IEX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
WLK Westlake Corporation | 4.58% | -33.77% | -16.90% | 38.23% | 6.81% | 20.53% | 18.52% | 7.72% | -37.27% | 92.39% |
IEX IDEX Corporation | 25.19% | -13.69% | -2.35% | -3.80% | -2.22% | 19.82% | 17.22% | 37.94% | -3.16% | 48.53% |
Correlation
The correlation between WLK and IEX is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.43 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.50 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.46 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.50 |
Correlation (All Time) Calculated using the full available price history since Aug 11, 2004 | 0.52 |
The correlation between WLK and IEX has been stable across timeframes, ranging from 0.43 to 0.52 - a consistent structural relationship.
Fundamentals
WLK:
$9.79B
IEX:
$16.46B
WLK:
-$12.75
IEX:
$6.77
WLK:
0.89
IEX:
4.70
WLK:
1.15
IEX:
4.06
WLK:
$10.98B
IEX:
$3.53B
WLK:
$169.00M
IEX:
$1.57B
WLK:
-$659.00M
IEX:
$885.40M
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Return for Risk
WLK vs. IEX — Risk / Return Rank
WLK
IEX
WLK vs. IEX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Westlake Corporation (WLK) and IDEX Corporation (IEX). 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.
| WLK | IEX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.02 | ||
| Sortino ratioReturn per unit of downside risk | -1.10 | ||
| Omega ratioGain probability vs. loss probability | 1.06 | 1.23 | -0.16 |
| Calmar ratioReturn relative to maximum drawdown | 0.18 | 1.99 | -1.81 |
| Martin ratioReturn relative to average drawdown | 0.42 | 3.90 | -3.48 |
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Drawdowns
WLK vs. IEX - Drawdown Comparison
The maximum WLK drawdown since its inception was -75.16%, smaller than the maximum IEX drawdown of -81.60%. Use the drawdown chart below to compare losses from any high point for WLK and IEX.
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Drawdown Indicators
| WLK | IEX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -75.16% | -81.60% | +6.44% |
Max Drawdown (1Y)Largest decline over 1 year | -37.77% | -15.17% | -22.60% |
Max Drawdown (3Y)Largest decline over 3 years | -64.20% | -34.60% | -29.60% |
Max Drawdown (5Y)Largest decline over 5 years | -64.20% | -34.60% | -29.60% |
Max Drawdown (10Y)Largest decline over 10 years | -75.16% | -35.52% | -39.64% |
Current DrawdownCurrent decline from peak | -50.47% | -7.12% | -43.35% |
Average DrawdownAverage peak-to-trough decline | -26.24% | -11.43% | -14.81% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 16.13% | 7.72% | +8.41% |
Volatility
WLK vs. IEX - Volatility Comparison
Westlake Corporation (WLK) has a higher volatility of 6.80% compared to IDEX Corporation (IEX) at 6.36%. This indicates that WLK's price experiences larger fluctuations and is considered to be riskier than IEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| WLK | IEX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.80% | 6.36% | +0.44% |
Volatility (6M)Calculated over the trailing 6-month period | 32.88% | 17.13% | +15.75% |
Volatility (1Y)Calculated over the trailing 1-year period | 46.84% | 25.83% | +21.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 36.96% | 24.06% | +12.90% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 39.35% | 24.22% | +15.13% |
Dividends
WLK vs. IEX - Dividend Comparison
WLK's dividend yield for the trailing twelve months is around 2.77%, more than IEX's 1.29% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IEX IDEX Corporation | 1.29% | 1.58% | 1.29% | 1.16% | 1.02% | 0.90% | 1.00% | 1.12% | 1.31% | 1.10% | 1.49% | 1.62% |
WLK Westlake Corporation | 2.77% | 2.85% | 1.79% | 1.12% | 1.28% | 1.17% | 1.31% | 1.46% | 1.39% | 0.75% | 1.33% | 1.28% |
Financials
WLK vs. IEX - Financials Comparison
This section allows you to compare key financial metrics between Westlake Corporation and IDEX 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
WLK vs. IEX - Profitability Comparison
WLK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Westlake Corporation reported a gross profit of 112.00M and revenue of 2.65B. Therefore, the gross margin over that period was 4.2%.
IEX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, IDEX Corporation reported a gross profit of 398.10M and revenue of 886.90M. Therefore, the gross margin over that period was 44.9%.
WLK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Westlake Corporation reported an operating income of -172.00M and revenue of 2.65B, resulting in an operating margin of -6.5%.
IEX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, IDEX Corporation reported an operating income of 172.40M and revenue of 886.90M, resulting in an operating margin of 19.4%.
WLK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Westlake Corporation reported a net income of -169.00M and revenue of 2.65B, resulting in a net margin of -6.4%.
IEX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, IDEX Corporation reported a net income of 120.00M and revenue of 886.90M, resulting in a net margin of 13.5%.
Frequently Asked Questions
WLK and IEX have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
WLK has higher volatility (6.80%) compared to IEX (6.36%). In terms of maximum drawdown, WLK dropped -75.16% vs IEX's -81.60%.
IEX currently has the higher Sharpe Ratio (1.17 vs 0.14), 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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