Westlake Corporation Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Westlake Corporation (WLK) reported Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate of 37.30% for the 12-month period ending 2025-12-31, per its 10-K filed 2026-02-26.
Financial Statements › Notes › Compensation Related Costs › Share-Based Payment Arrangement, Disclosure › Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate · last filed 2026-02-26
- Westlake Corporation share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate for fiscal 2025 was 37.30%, a 2.86% decline from fiscal 2024.
- Westlake Corporation share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate for fiscal 2024 was 38.40%, a 1.79% decline from fiscal 2023.
- Westlake Corporation share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate for fiscal 2023 was 39.10%, a 5.96% increase from fiscal 2022.
- Westlake Corporation share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate for fiscal 2022 was 36.90%, a 0.00% change from fiscal 2021.
| Period end | Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 12 month |
|---|---|
| 2025-12-31 | 37.30% 10-K · filed 2026-02-26 |
| 2024-12-31 | 38.40% 10-K · filed 2026-02-26 |
| 2023-12-31 | 39.10% 10-K · filed 2026-02-26 |
| 2022-12-31 | 36.90% 10-K · filed 2025-02-25 |
| 2021-12-31 | 36.90% 10-K · filed 2024-02-22 |
| 2020-12-31 | 29.40% 10-K · filed 2023-02-22 |
| 2019-12-31 | 28.90% 10-K · filed 2022-02-23 |
| 2018-12-31 | 27.60% 10-K · filed 2021-02-24 |
| 2017-12-31 | 29.20% 10-K · filed 2020-02-19 |
| 2016-12-31 | 32.90% 10-K · filed 2019-02-20 |
| 2015-12-31 | 34.20% 10-K · filed 2018-02-21 |
| 2014-12-31 | 35.70% 10-K · filed 2017-02-22 |
| 2013-12-31 | 44.50% 10-K · filed 2016-02-24 |
| 2012-12-31 | 45.70% 10-K · filed 2015-02-25 |
| 2011-12-31 | 41.90% 10-K · filed 2014-02-21 |
| 2010-12-31 | 41.80% 10-K · filed 2013-02-22 |
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