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Westlake (WLK) closed at $64.56 on October 23, 2026, up 0.7% from the previous close, on volume of 985,513 shares (30-day average 849,537).

Key numbers
  • Last close: $64.56 (October 23, 2026)
  • 52-week range: $56.33 to $124.23
  • Market value: $8.3 billion
  • 30-day implied volatility (IV30): 47.8%
  • Option volume: 135 contracts (31 calls, 104 puts); 30-day average 115
  • Next earnings: November 4, 2026, before the market opens (confirmed)

Data as of October 23, 2026.

WLK Stock Summary and Trading Ideas (Westlake | NYSE:WLK)

Charts for Today's Stock Price and Implied Volatility in Westlake

23-Oct-2026

Stock Price & Volume | Full Chart

30-Day Implied Volatility | IV30 Full Chart

Trade Ideas for Best Option Strategies for WLK by Theoretical Edge and Win Rates

Sentiment

Trading Statistics

Key Ratios

Westlake (WLK) Frequently Asked Questions

What does Westlake do?

Westlake is a forward-integrated commodity chemicals firm based in Houston. It began as a single low-density polyethylene plant and expanded its capabilities to include ethylene, vinyl chloride monomers, and polyvinyl chloride over the next two decades. The acquisition of Axiall in 2016 made it a North American leader in chlor-alkali and PVC. Today, Westlake has two defined segments: performance and essential materials, and housing and infrastructure products. The HIP segment began operating in 2022 following a series of acquisitions in the building products space. The firm aims to maximize the value of its chemical production by integrating with the HIP segment, realizing the higher margins of finished commercial goods.

What symbol and exchange does Westlake shares trade?

Westlake trades on the NYSE stock market under the symbol WLK.

What is Westlake stock price doing today?

As of October 23, 2026, WLK stock price climbed to $64.56 with 985,513 million shares trading.

What is Westlake's Beta?

WLK has a beta of 0.20, meaning it tends to be less sensitive to market movements. WLK has a correlation of 0.00 to the broad based SPY ETF.

How much is Westlake worth?

WLK has a market cap of $8.30 billion. This is considered a Mid Cap stock.

How much money does Westlake make?

Last quarter Westlake reported $3 billion in Revenue and $2.01 earnings per share. This beat revenue expectation by $5 million and exceeded earnings estimates by $.10.

What is the highest and lowest price Westlake traded in the last 3 year period?

In the last 3 years, WLK traded as high as $162.64 and as low as $56.33.

What are the top ETFs holding Westlake?

The top ETF exchange traded funds that WLK belongs to (by Net Assets): IJH, PAVE, VTI, DFSV, VB.

Is Westlake (WLK) a good investment?

WLK has underperformed the market in the last year with a return of -15.4%, while the SPY ETF gained +14.3%. In the last 3 month period, WLK fell short of the market, returning -13.5%, while SPY returned +3.2%. However, in the most recent 2 weeks WLK has outperformed the stock market by returning +3.6%, while SPY returned -2.4%.

What are the support and resistance levels for Westlake (WLK)?

WLK support price is $62.41 and resistance is $65.87 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that WLK shares will trade within this expected range on the day.

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