Westlake Corporation

WLKNYSEBasic Materials● Active

$84.64

$-0.61(-0.72%)

Market Cap$10.8B

P/E Ratio—

52W High$124.23

52W Low$56.33

Avg Volume1.2M

Open$84.29

Beta0.59

Free Cash Flow Financials Revenue

Westlake Corporation (WLK) Free Cash Flow & Analysis

Annual & trailing free cash flow, FCF margin, YoY change, valuation ratios, and peer context.

WLK · free cash flow · updated Jun 8, 2026

Core FCF metrics

WLK · FCF · TTM · margin & CAGR

Free cash flow was −$530.0M for FY2025 (fiscal year ending 2025-12-31), down 273.2% year-over-year The FCF margin was -4.7%.

FY2025 Free Cash Flow−$530.0M▼ -273.2% YoY

Trailing 12M (TTM)−$508.0Mtrailing 4 quarters sum

FCF Margin-4.7%−$530.0M ÷ revenue

3-Year CAGRN/AN/A — contains negative FCF

5-Year CAGRN/AN/A — contains negative FCF

FormulaFCF = Operating Cash Flow − Capital ExpendituresTTM = trailing 4 quarters sumCAGR → N/A if either endpoint ≤ 0

Source: FMP /cash-flow-statement · SEC 10-K / 10-Q · USDUpdated: Jun 8, 2026

Annual free cash flow history

FCF ($B, upper) · YoY Growth % (lower)

Positive FCFNegative FCF

Free Cash Flow

YoY Growth %

Annual free cash flow data

WLK · free cash flow history · annual / quarterly

Fiscal YearOperating CFCapExFree Cash FlowYoY ChangeFCF Margin

FY2025Latest$465.0M(995M)−$530.0M▼ 273.2%-4.7%

FY2024$1.31B(1.01B)$306.0M▼ 76.5%2.5%

FY2023$2.34B(1.03B)$1.30B▼ 43.1%10.4%

FY2022$3.40B(1.11B)$2.29B▲ +31.7%14.5%

FY2021$2.39B(658M)$1.74B▲ +124.9%14.7%

FCF = Operating Cash Flow − Capital Expenditures · CapEx shown as (negative) · Source: SEC filings via FMP

FCF valuation metrics

WLK · P/FCF · FCF yield · FCF per share

Westlake Corporation (WLK) reported negative free cash flow of −$0.53B. FCF-based valuation ratios are not meaningful when FCF is negative.

FCF Yield (TTM)

N/A

Free Cash Flow ÷ Market Cap

per FMP freeCashFlowYieldTTM definition

FCF per Share (TTM)

N/A

TTM FCF ÷ Shares Outstanding

Price / FCF

N/A

Share Price ÷ FCF per Share

EV / FCF (TTM)

N/A

Enterprise Value basis

FCF-based valuation ratios are only meaningful when free cash flow is positive. Negative FCF indicates capital expenditures exceeded operating cash flow.

Source: FMP /key-metrics-ttm · /cash-flow-statement Q · /income-statementFY2025 · 2025-12-31

Cash flow statement summary

WLK · cash flow statement · operating / investing / financing

For FY2025, Westlake Corporation generated $465.0M in operating cash flow and spent 995M in capital expenditures, yielding −$530.0M in free cash flow.

Operating Activities

+$465.0M

Cash from core business operations

2025-12-31

Investing Activities

−$1.22B

CapEx, acquisitions & investments

2025-12-31

Financing Activities

+$530.0M

Buybacks, dividends & debt

2025-12-31

FCF FormulaOperating CF ($465.0M) − |CapEx| (995M) = FCF (−$530.0M)

For the complete Operating / Investing / Financing line-item breakdown:

View Full Cash Flow Statement →

Free cash flow vs peers (Basic Materials)

WLK vs peers · FCF

#CompanyFree Cash FlowYoYFCF MarginRelative

Westlake CorporationYOU

WLK

−$530.0M-273.2%-4.7%

Loss

Southern Copper Corporation

Basic Materials · Sorted by FCF · FMP /cash-flow-statementFull FCF Rankings →

About Free Cash Flow & Methodology

Westlake Corporation (WLK) reported free cash flow of −$530.0M for FY2025 (fiscal year ending 2025-12-31), down 273.2% year-over-year. The FCF margin was -4.7%.

Based on available data, Westlake Corporation has maintained positive free cash flow for at least 14 fiscal year(s). FCF peaked at $2.29B in FY2022.

Data sourced from FMP /cash-flow-statement · SEC 10-K / 10-Q · USD.

Q&A and summaries align with SEC 10-K/10-Q cash flow disclosures and FMP /cash-flow-statement where noted.

Revenue Financial statements Net income Earnings Forecast Price history Market cap Cash on hand P/E ratio

Frequently asked questions

WLK free cash flow · 8 questions

Westlake Corporation free cash flow was −$530.0M for FY2025, down 273.2% year-over-year. On a trailing twelve-month (TTM) basis, free cash flow stands at −$508.0M.

WLK free cash flowWLK FCFWLK FCF 2025WLK free cash flow TTM

▸ Source: FMP /cash-flow-statement · US GAAP · Westlake Corporation · Westlake Corporation SEC 10-K & 10-Q filings · US GAAP · Last updated: Jun 8, 2026