Companies: 10,795·Total market cap: $144.5T
Westlake Corporation

Westlake Corporation

WLKNYSEBasic Materials● Active
$85.01
+$0.37(+0.44%)
Market Cap$10.9B
P/E Ratio
52W High$124.23
52W Low$56.33

Westlake Corporation (WLK) Stock Splits

Forward and reverse split history, cumulative multiple, latest ratio, and share calculator on this tab.

FMP · WLK · as of Jun 8, 2026

Key split metrics

Total Splits1Since IPO (Aug 12, 2004)
Most Recent SplitMar 19, 2014Forward · 2-for-1
Cumulative Multiple×21 share (2004) → 2 shares today

Latest Split Event

Forward Split
Mar 19, 2014
BEFORE SPLIT$135.16Closing price · Mar 18, 2014
2-for-1
AFTER SPLIT$67.62Opening price · Mar 19, 2014
Each shareholder received 2 shares for every 1 share held.·Total market cap unchanged.·Source: FMP · Historical EOD

Stock Split History

WLK · 1 records
DateRatioTypeMultipleCumulative
Mar 19, 20142-for-1Forward×2×2
1 splits since IPO · Aug 12, 2004Data: Financial Modeling Prep · Updated daily

Stock Split Calculator

If you bought 100 shares purchased of WLK on Jan 1, 2020 — how many shares would you hold today after all splits?

ORIGINAL SHARES100
SHARES TODAY100
Splits Applied0
Total Multiplier×1.00
Split Period
Splits applied:No splits occurred after this date
Based on purchase date Jan 1, 2020Share count only · excludes price / dividendsSource: FMP

This calculator shows how stock splits affected share count only. It does not reflect current market value, dividend payments, or transaction costs. Past splits do not guarantee future performance.

About stock split history & investor guide

Westlake Corporation (WLK) has split its stock 1 times since its IPO, with a cumulative multiplier of ×2. The most recent split was a 2-for-1 forward split on Mar 19, 2014.

Frequently asked questions

Westlake Corporation (WLK) has split its stock 1 times. All splits were forward splits. The cumulative multiplier is ×2, meaning 1 share at IPO would equal 2 shares today.

WLK stock split historyhow many times has WLK splitWLK cumulative stock splitforward stock split record
Data: Financial Modeling Prep · Updated daily · For informational purposes only, not investment advice.