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Westlake WLK Cumulative Cost Basis

Cumulative Cost Basis at other companies

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Other financials

Income statement

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Revenue$2.7B-6.8%
Gross profit$112.0M-51.7%
Operating income-$172.0M-438%
Net income-$169.0M-323%
EPS (diluted)-$1.31-323%

Balance sheet

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Cash & equivalents$2.3B-1.1%
Total debt$6.4B+16.9%
Total equity$8.5B-17.9%
Total assets$19.7B-4.8%

Cash flow

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Operating cash flow-$94.0M-22.1%
CapEx$209.0M-15.7%
Free cash flow-$303.0M+6.8%

Valuation

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Market cap$10.29B+16.3%
Enterprise value$14.38B+19.0%
P/S0.9×+0.2×

Profitability

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Gross margin6.3%-8.0pp
Operating margin-15.7%-20.8pp
Net margin-14.9%-18.1pp
FCF margin-4.6%-5.3pp

Returns & leverage

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Return on equity-17.3%-21.0pp
Debt / equity0.7×+0.2×
Current ratio2.2×-0.5×

Where this comes from

Reported directly by Westlake in its filing.

Tagged under the XBRL concept us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis.

The official record: Westlake’s 10-Q, filed May 6, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Westlake's cumulative cost basis?
Westlake (WLK) reported cumulative cost basis of $205M in Q1 2026.
How has Westlake's cumulative cost basis changed year-over-year?
Westlake's cumulative cost basis increased by 12.0% year-over-year, from $183M to $205M.