What is the current shares outstanding of WLK?

As of today, WLK shares outstanding is 127.80M

What is 1-year change in WLK shares outstanding?

WLK shares outstanding is down -0.35% year-over-year

WLK shares outstanding is up +0.09% over the past 3 years

WLK shares outstanding is currently -4.56% below its historical high of 133.90M set on March 31, 2013

127.80M326.40K-0.25%

August 7, 2026

Current Value: As of today, WLK has 127.80M outstanding shares, down -0.25% on August 7, 2026
Historical Performance: WLK shares outstanding is down -0.35% year-over-year, up +0.09% over the past 3 years
All-Time High Comparison: WLK shares outstanding is currently -4.56% below its historical high of 133.90M set on March 31, 2013
3-Year Low Comparison: WLK shares outstanding is +0.09% above its 3-year low of 127.69M reached on an earlier date

WLK Performance
Metric	Date	Value	1Y	3Y	5Y
Shares Outstanding	Aug 7, 26	127.80M	-0.3%	+0.1%	-0.3%
Price	Aug 19, 26	$79.45	-4.9%	-39.0%	-1.8%
Market Cap	Aug 19, 26	$10B	-5.3%	-39.0%	-2.0%
PE Ratio	Aug 19, 26	-	–	–	–
TTM Revenue	Jun 30, 26	$11.29B	-4.0%	-18.5%	+24.4%
TTM EPS	Jun 30, 26	-$9.59	-1710.0%	-193.6%	-232.7%
	Aug 19, 26	$9.13B	-34.7%	-53.2%	-27.4%
TTM Net Income	Jun 30, 26	-$1.19B	-4288.9%	-186.7%	-221.2%
TTM Dividend	Aug 19, 26	$1.59	-24.5%	+11.3%	+47.2%

WLK Shares Outstanding Highs Comparison
Period	High	Date	Current
1Y	128.27M	Feb 1, 26	-0.4%
3Y	128.70M	Sep 30, 24	-0.7%
5Y	128.70M	Sep 30, 24	-0.7%
All	133.90M	Mar 31, 13	-4.6%

WLK Shares Outstanding Lows Comparison
Period	Low	Date	Current
1Y	127.80M	Aug 7, 26	at low
3Y	127.69M	N/A	+0.1%
5Y	127.37M	Dec 31, 22	+0.3%
All	2.23M	Mar 31, 04	+5630.8%

What is the current shares outstanding of WLK?: As of today, WLK shares outstanding is 127.80M
What is 1-year change in WLK shares outstanding?: WLK shares outstanding is down -0.35% year-over-year
What is 3-year change in WLK shares outstanding?: WLK shares outstanding is up +0.09% over the past 3 years
How far is WLK shares outstanding from its all-time high?: WLK shares outstanding is currently -4.56% below its historical high of 133.90M set on March 31, 2013

WLK Official Website www.westlake.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1262823/000126282326000016/0001262823-26-000016-index.htm
WLK Profile on Yahoo Finance finance.yahoo.com/quote/WLK
WLK Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/wlk