WLK vs. APD
WLK (Westlake Corporation) and APD (Air Products and Chemicals, Inc.) are both stocks. Both operate in the Specialty Chemicals industry within the Basic Materials sector. Over the past 10 years, WLK returned 6.45%/yr vs 9.78%/yr for APD. Their 0.49 correlation means their historical movements had little consistent relationship.
Performance
WLK vs. APD - Performance Comparison
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Returns By Period
In the year-to-date period, WLK achieves a -3.60% return, which is significantly lower than APD's 21.76% return. Over the past 10 years, WLK has underperformed APD with an annualized return of 6.45%, while APD has yielded a comparatively higher 9.78% annualized return.
WLK
- 1D
- -1.70%
- 1M
- -5.71%
- 6M
- -10.14%
- YTD
- -3.60%
- 1Y
- -4.06%
- 3Y*
- -18.25%
- 5Y*
- -1.57%
- 10Y*
- 6.45%
- ALL TIME*
- 12.45%
APD
- 1D
- -1.77%
- 1M
- -6.14%
- 6M
- 9.57%
- YTD
- 21.76%
- 1Y
- 7.45%
- 3Y*
- 1.76%
- 5Y*
- 2.82%
- 10Y*
- 9.78%
- ALL TIME*
- 11.77%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $360.31M | $352.85M | $378.51M | |
| $79.41M | $77.79M | $94.10M |
WLK vs. APD - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
WLK Westlake Corporation | -3.60% | -33.77% | -16.90% | 38.23% | 6.81% | 20.53% | 18.52% | 7.72% | -37.27% | 92.39% |
APD Air Products and Chemicals, Inc. | 21.76% | -12.66% | 8.09% | -8.95% | 3.91% | 13.75% | 18.82% | 50.02% | 0.26% | 17.04% |
Correlation
The correlation between WLK and APD is 0.40, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.40 |
Correlation (3Y) Balances recent behavior with more history. | 0.45 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.45 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.45 |
Correlation (All Time) Calculated using the full available price history since Aug 11, 2004 | 0.49 |
Fundamentals
WLK:
$9.03B
APD:
$65.67B
WLK:
-$12.75
APD:
-$0.21
WLK:
0.82
APD:
5.22
WLK:
1.06
APD:
4.73
WLK:
$10.98B
APD:
$12.60B
WLK:
$169.00M
APD:
$4.04B
WLK:
-$659.00M
APD:
$1.30B
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Return for Risk
WLK vs. APD — Risk / Return Rank
WLK
APD
WLK vs. APD - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Westlake Corporation (WLK) and Air Products and Chemicals, Inc. (APD). 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 | APD | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.39 | ||
| Sortino ratioReturn per unit of downside risk | -0.47 | ||
| Omega ratioGain probability vs. loss probability | 1.00 | 1.06 | -0.06 |
| Calmar ratioReturn relative to maximum drawdown | -0.21 | 0.23 | -0.44 |
| Martin ratioReturn relative to average drawdown | -0.43 | 0.56 | -0.99 |
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Drawdowns
WLK vs. APD - Drawdown Comparison
The maximum WLK drawdown since its inception was -75.16%, which is greater than APD's maximum drawdown of -60.30%. Use the drawdown chart below to compare losses from any high point for WLK and APD.
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Drawdown Indicators
| WLK | APD | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -75.16% | -60.30% | -14.86% |
Max Drawdown (1Y)Largest decline over 1 year | -42.52% | -22.39% | -20.13% |
Max Drawdown (3Y)Largest decline over 3 years | -64.20% | -30.43% | -33.77% |
Max Drawdown (5Y)Largest decline over 5 years | -64.20% | -31.77% | -32.43% |
Max Drawdown (10Y)Largest decline over 10 years | -75.16% | -31.77% | -43.39% |
Current DrawdownCurrent decline from peak | -54.34% | -9.33% | -45.01% |
Average DrawdownAverage peak-to-trough decline | -26.36% | -11.05% | -15.31% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 20.45% | 9.21% | +11.24% |
Volatility
WLK vs. APD - Volatility Comparison
Westlake Corporation (WLK) and Air Products and Chemicals, Inc. (APD) have volatilities of 6.33% and 6.42%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| WLK | APD | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.33% | 6.42% | -0.09% |
Volatility (6M)Calculated over the trailing 6-month period | 30.57% | 18.34% | +12.23% |
Volatility (1Y)Calculated over the trailing 1-year period | 44.69% | 26.82% | +17.87% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 36.79% | 26.48% | +10.31% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 39.24% | 26.06% | +13.18% |
Dividends
WLK vs. APD - Dividend Comparison
WLK's dividend yield for the trailing twelve months is around 3.01%, more than APD's 2.44% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
APD Air Products and Chemicals, Inc. | 2.44% | 2.89% | 1.83% | 2.56% | 2.10% | 1.97% | 1.96% | 1.97% | 2.75% | 2.32% | 2.39% | 2.49% |
WLK Westlake Corporation | 3.01% | 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. APD - Financials Comparison
This section allows you to compare key financial metrics between Westlake Corporation and Air Products and Chemicals, 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
WLK vs. APD - Profitability Comparison
WLK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 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%.
APD - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Air Products and Chemicals, Inc. reported a gross profit of 1.04B and revenue of 3.16B. Therefore, the gross margin over that period was 32.8%.
WLK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Westlake Corporation reported an operating income of -172.00M and revenue of 2.65B, resulting in an operating margin of -6.5%.
APD - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Air Products and Chemicals, Inc. reported an operating income of -2.10B and revenue of 3.16B, resulting in an operating margin of -66.3%.
WLK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Westlake Corporation reported a net income of -169.00M and revenue of 2.65B, resulting in a net margin of -6.4%.
APD - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Air Products and Chemicals, Inc. reported a net income of -1.44B and revenue of 3.16B, resulting in a net margin of -45.6%.
Frequently Asked Questions
WLK and APD have a correlation of 0.40, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
APD has higher volatility (6.42%) compared to WLK (6.33%). In terms of maximum drawdown, WLK dropped -75.16% vs APD's -60.30%.
APD currently has the higher Sharpe Ratio (0.19 vs -0.20), 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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