Westlake - 21 Year Stock Price History | WLK
Historical daily share price chart and data for Westlake since 2004 adjusted for splits and dividends. The latest closing stock price for Westlake as of June 13, 2025 is 77.30.
- The all-time high Westlake stock closing price was 158.51 on April 09, 2024.
- The Westlake 52-week high stock price is 153.34, which is 98.4% above the current share price.
- The Westlake 52-week low stock price is 68.55, which is 11.3% below the current share price.
- The average Westlake stock price for the last 52 weeks is 119.85.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
| Westlake Historical Annual Stock Price Data |
| Year |
Average Stock Price |
Year Open |
Year High |
Year Low |
Year Close |
Annual % Change |
| 2025 |
97.2115 |
110.8560 |
117.8060 |
69.8300 |
77.3000 |
-31.80% |
| 2024 |
139.3578 |
137.1630 |
158.5070 |
111.9430 |
113.3470 |
-16.90% |
| 2023 |
117.3672 |
95.1890 |
139.0540 |
95.1890 |
136.3930 |
38.38% |
| 2022 |
102.1094 |
92.6129 |
133.6850 |
78.3163 |
98.5629 |
6.81% |
| 2021 |
86.6662 |
76.6062 |
99.2711 |
71.7368 |
92.2803 |
20.53% |
| 2020 |
54.9607 |
63.6041 |
78.8861 |
27.6228 |
76.5593 |
18.52% |
| 2019 |
61.6930 |
61.1358 |
73.2977 |
51.4633 |
64.5987 |
7.72% |
| 2018 |
88.5204 |
97.8882 |
111.1810 |
55.1183 |
59.9667 |
-37.27% |
| 2017 |
65.4102 |
50.8409 |
95.5911 |
50.8409 |
95.5911 |
92.39% |
| 2016 |
42.7119 |
46.8252 |
52.5093 |
35.1402 |
49.6873 |
4.71% |
| 2015 |
54.8853 |
53.2868 |
68.0513 |
43.3926 |
47.4541 |
-10.07% |
| 2014 |
63.9577 |
51.5304 |
84.2545 |
46.3592 |
52.7685 |
0.88% |
| 2013 |
42.0761 |
35.3550 |
52.3060 |
33.4823 |
52.3060 |
55.22% |
| 2012 |
25.8120 |
16.3618 |
34.0334 |
16.3618 |
33.6977 |
109.13% |
| 2011 |
18.6136 |
17.4478 |
26.3782 |
12.9141 |
16.1135 |
-6.88% |
| 2010 |
10.7900 |
10.0356 |
17.3522 |
6.9618 |
17.3045 |
76.03% |
| 2009 |
8.2226 |
6.5024 |
11.0876 |
4.0718 |
9.8305 |
54.80% |
| 2008 |
6.5514 |
7.3199 |
8.5226 |
4.8384 |
6.3504 |
-13.20% |
| 2007 |
10.3242 |
12.2657 |
14.1933 |
7.1273 |
7.3161 |
-39.04% |
| 2006 |
12.0255 |
11.0557 |
14.0068 |
10.0635 |
12.0018 |
9.39% |
| 2005 |
11.1950 |
12.6571 |
14.0624 |
8.4648 |
10.9719 |
-13.44% |
| Sector |
Industry |
Market Cap |
Revenue |
| Basic Materials |
Chemicals - Plastics |
$10.082B |
$12.142B |
|
Westlake is a diversified industrial company that manufactures and supplies essential products under one Westlake brand. Westlake products include food packaging, medical devices, soaps and detergents, car interiors, fashion, toys, shoes, furniture, electronics, siding, stone veneer, windows, outdoor living, roofing and pipe & fittings. Westlake Performance & Essential Materials businesses include polyethylene and vinyl chemicals production, which are vital to the manufacturing of polymers to protect food, medical and personal products and an extensive range of sectors and spaces, such as automotive interiors and exteriors, building materials, PVC pipes for agriculture, water systems and buildings, detergents, pharmaceuticals. Westlake Housing & Infrastructure Products produces finished goods and key materials in building products, pipe & fittings and custom compounds which are critical to the manufacturing of items including residential siding, architectural stone, roofing, windows and outdoor living.
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