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Westlake (WLK) closed at $63.61 on November 13, 2026, up 1.3% from the previous close, on volume of 705,521 shares (30-day average 945,493).

Key numbers
  • Last close: $63.61 (November 13, 2026)
  • 52-week range: $56.33 to $124.23
  • Market value: $8.2 billion
  • 30-day implied volatility (IV30): 37.0%
  • Option volume: 29 contracts (25 calls, 4 puts); 30-day average 142

Data as of November 13, 2026.

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

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

13-Nov-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

Largest Multi-Leg Option Trades (30 Days)

#DateStrategyLegsContracts

Ranked by contracts: multi-leg trades of 200 or more contracts on one day, through Nov 12, 2026. See the 10 largest for 30, 60 and 90 days

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 November 13, 2026, WLK stock price climbed to $63.61 with 705,521 million shares trading.

What is Westlake's Beta?

WLK has a beta of 0.29, meaning it tends to be less sensitive to market movements. WLK has a correlation of 0.01 to the broad based SPY ETF.

How much is Westlake worth?

WLK has a market cap of $8.17 billion. This is considered a Mid Cap stock.

How much money does Westlake make?

Last quarter Westlake reported $3 billion in Revenue and $.45 earnings per share. This beat revenue expectation by $23 million and missed earnings estimates by -$.07.

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, DFAT.

Is Westlake (WLK) a good investment?

WLK has underperformed the market in the last year with a price return of +4.7% while the SPY ETF gained +11.5%. WLK has also underperformed the stock market ETF in the last 3 month and 2 week periods returning -19.0% and -3.6%, respectively, while the SPY returned -2.1% and -1.9%, respectively.

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

WLK support price is $61.22 and resistance is $64.34 (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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