Westlake - 21 Year Stock Price History | WLK

The latest closing stock price for Westlake as of May 21, 2025 is 73.66.

  • An investor who bought $1,000 worth of Westlake stock at the IPO in 2004 would have $12,258 today, roughly 12 times their original investment - a 13.10% compound annual growth rate over 21 years.
  • The all-time high Westlake stock closing price was 158.51 on April 09, 2024.
  • The Westlake 52-week high stock price is 161.31, which is 119% above the current share price.
  • The Westlake 52-week low stock price is 73.71, which is 0.1% below the current share price.
  • The average Westlake stock price for the last 52 weeks is 124.95.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

Westlake - 21 Year Stock Price History | WLK

  • An investor who bought $1,000 worth of Westlake stock at the IPO in 2004 would have $12,258 today, roughly 12 times their original investment - a 13.10% compound annual growth rate over 21 years.
  • The all-time high Westlake stock closing price was 158.51 on April 09, 2024.
  • The Westlake 52-week high stock price is 161.31, which is 119% above the current share price.
  • The Westlake 52-week low stock price is 73.71, which is 0.1% below the current share price.
  • The average Westlake stock price for the last 52 weeks is 124.95.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.