Westlake Corporation (WLK) Stock Price History
Historical prices from 2004 to 2026
- 1M
- -12.2%
- 3M
- -28.7%
- YTD
- +8.3%
- 1Y
- +12.8%
- 3Y
- -10.3%
- 5Y
- -2.5%
Loading 10-year price history...
WLK Historical Performance
WLK Annual Returns
Year-by-year price performance · 2004–2026
- 2004 annual price return
- +128.0%
- 2005 annual price return
- -13.6%
- 2006 annual price return
- +8.1%
- 2007 annual price return
- -40.8%
- 2008 annual price return
- -14.2%
- 2009 annual price return
- +49.5%
- 2010 annual price return
- +70.9%
- 2011 annual price return
- -8.2%
- 2012 annual price return
- +104.9%
- 2013 annual price return
- +46.7%
- 2014 annual price return
- +1.6%
- 2015 annual price return
- -11.9%
- 2016 annual price return
- +4.5%
- 2017 annual price return
- +85.9%
- 2018 annual price return
- -39.3%
- 2019 annual price return
- +4.0%
- 2020 annual price return
- +18.1%
- 2021 annual price return
- +19.0%
- 2022 annual price return
- +5.2%
- 2023 annual price return
- +41.3%
- 2024 annual price return
- -18.5%
- 2025 annual price return
- -34.1%
- 2026 annual price return
- +42.1%
WLK Stock Price Trajectory (2004–2026)
As of June 21, 2026, Westlake Corporation (WLK) trades at $80.28, representing a +12.8% return over the past year. The stock has delivered a -2.4% total return over five years (-2.5% CAGR), reflecting challenging market conditions.
The stock reached its all-time high of $162.64 on April 9, 2024. From this peak, WLK has corrected -50.6%, currently trading 9% below its 200-day moving average, suggesting potential weakness.
When compared to Basic Materials sector peers OLN (+13.3% 1Y), LYB (+2.4% 1Y), and HUN (+15.5% 1Y), WLK has underperformed the peer group average. Compare WLK vs OLN →
WLK Historical Price Data · from 2004
Rows 1–50 of 5,500| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-06-18 | 82.94 | 83.08 | 80.13 | 80.28 | 1.69M | -3.83% |
| 2026-06-17 | 83.67 | 87.27 | 83.31 | 83.48 | 732K | -1.01% |
| 2026-06-16 | 86.89 | 87.66 | 83.92 | 84.33 | 1.11M | -3.57% |
| 2026-06-15 | 87.65 | 88.76 | 86.16 | 87.45 | 314K | -1.19% |
| 2026-06-12 | 87.45 | 89.47 | 86.53 | 88.50 | 680K | +1.41% |
| 2026-06-11 | 88.43 | 89.23 | 86.43 | 87.27 | 500K | +0.17% |
| 2026-06-10 | 85.81 | 88.98 | 85.81 | 87.12 | 984K | +1.17% |
| 2026-06-09 | 85.63 | 86.91 | 84.38 | 86.11 | 1.09M | +1.00% |
| 2026-06-08 | 84.38 | 85.78 | 83.75 | 85.26 | 854K | +0.73% |
| 2026-06-05 | 84.05 | 85.34 | 82.97 | 84.64 | 782K | -0.72% |
| 2026-06-04 | 85.56 | 87.04 | 84.37 | 85.25 | 709K | -1.32% |
| 2026-06-03 | 86.46 | 87.90 | 85.75 | 86.39 | 848K | -0.51% |
| 2026-06-02 | 86.31 | 87.93 | 85.89 | 86.83 | 703K | +0.52% |
| 2026-06-01 | 87.50 | 88.99 | 86.34 | 86.38 | 887K | -0.52% |
| 2026-05-29 | 87.03 | 87.77 | 86.12 | 86.83 | 602K | -0.96% |
| 2026-05-28 | 87.45 | 88.70 | 87.14 | 87.67 | 826K | -0.16% |
| 2026-05-27 | 86.91 | 89.37 | 86.39 | 87.81 | 1.05M | -1.08% |
| 2026-05-26 | 88.77 | 89.39 | 88.06 | 88.77 | 674K | +0.19% |
| 2026-05-22 | 88.76 | 89.98 | 87.14 | 88.60 | 172K | +0.57% |
| 2026-05-21 | 88.73 | 89.09 | 86.54 | 88.10 | 862K | -0.45% |
| 2026-05-20 | 88.47 | 89.49 | 87.75 | 88.50 | 909K | -0.18% |
| 2026-05-19 | 89.97 | 91.23 | 88.15 | 88.66 | 877K | -3.06% |
| 2026-05-18 | 90.22 | 93.18 | 88.56 | 91.46 | 1.47M | +3.24% |
| 2026-05-15 | 91.19 | 91.53 | 88.33 | 88.59 | 1.75M | -3.21% |
| 2026-05-14 | 93.10 | 94.39 | 91.50 | 91.53 | 988K | -0.80% |
| 2026-05-13 | 97.34 | 98.30 | 92.26 | 92.27 | 1.35M | -4.42% |
| 2026-05-12 | 99.02 | 99.51 | 96.49 | 96.54 | 972K | -1.05% |
| 2026-05-11 | 94.88 | 98.94 | 93.86 | 97.56 | 1.48M | +3.95% |
| 2026-05-08 | 97.88 | 98.47 | 93.42 | 93.85 | 1.39M | -3.62% |
| 2026-05-07 | 98.16 | 100.05 | 97.10 | 97.38 | 1.40M | -2.36% |
| 2026-05-06 | 100.35 | 102.57 | 98.66 | 99.73 | 2.17M | -4.82% |
| 2026-05-05 | 102.53 | 106.93 | 101.23 | 104.78 | 1.80M | -8.78% |
| 2026-05-04 | 115.52 | 116.26 | 112.40 | 114.87 | 1.16M | -0.10% |
| 2026-05-01 | 115.75 | 117.00 | 114.78 | 114.99 | 866K | -0.25% |
| 2026-04-30 | 112.50 | 115.71 | 111.19 | 115.28 | 701K | +3.47% |
| 2026-04-29 | 112.09 | 112.48 | 110.48 | 111.41 | 918K | +0.96% |
| 2026-04-28 | 112.41 | 112.86 | 109.14 | 110.35 | 680K | -0.76% |
| 2026-04-27 | 111.91 | 113.66 | 109.42 | 111.19 | 632K | +0.50% |
| 2026-04-24 | 112.00 | 113.49 | 109.68 | 110.64 | 1.04M | -1.43% |
| 2026-04-23 | 114.35 | 115.60 | 110.58 | 112.25 | 964K | -1.78% |
| 2026-04-22 | 117.87 | 117.87 | 113.50 | 114.28 | 1.07M | -1.18% |
| 2026-04-21 | 112.93 | 115.85 | 112.15 | 115.65 | 845K | +1.55% |
| 2026-04-20 | 111.72 | 115.60 | 111.72 | 113.88 | 830K | +1.13% |
| 2026-04-17 | 113.20 | 114.51 | 110.79 | 112.61 | 1.47M | -5.37% |
| 2026-04-16 | 116.73 | 119.22 | 116.41 | 119.00 | 1.07M | +3.25% |
| 2026-04-15 | 118.13 | 118.41 | 114.42 | 115.25 | 943K | -2.27% |
| 2026-04-14 | 117.78 | 118.98 | 115.01 | 117.93 | 914K | -1.85% |
| 2026-04-13 | 119.34 | 121.94 | 118.79 | 120.15 | 602K | +1.50% |
| 2026-04-10 | 118.97 | 120.92 | 117.50 | 118.37 | 908K | +0.99% |
| 2026-04-09 | 120.99 | 122.53 | 116.26 | 117.21 | 1.21M | -2.98% |
Full Stock Analysis
Deep dive into WLK consensus models and risk factors.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
10-year return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
WLK — Frequently Asked Questions
Quick answers to the most common questions about buying WLK stock.
How has WLK stock performed recently?
WLK returned +12.8% over the past year, beating its 5-year annualized CAGR of -2.5%. The stock trades below its 200-day moving average, confirming the uptrend.
What is WLK's all-time high price?
Westlake Corporation reached $162.64 on 2024-04-09. The 52-week high is $124.23. Current 1-year return of +12.8% places the stock closer to historical peaks.
Where can I download WLK historical price data?
This page provides WLK daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2004-2026, downloadable in CSV format.