Skip to content
Summer 2026 · 26% off every plan with SUMMER26 See pricing
Optionomics
WLK · 10-Q filed May 6, 2026

WLK earnings analysis

What we found in WLK's 10-Q: the parts that mattered, the offsets in the same document, and what the company said about what comes next.

Our reading of the filing · Free to read, no account needed

Westlake Corporation reported a significant decrease in revenue and a larger net loss for Q1 2026 compared to both the prior quarter and the same period last year. The company's revenue came in at $2.65 billion, a 7% decline from $2.85 billion in Q1 2025, and the net loss attributable to the company increased to $169 million, translating to a diluted EPS of -$1.31, compared to -$0.31 a year ago. Several drivers of this performance included lower volumes and prices for key products and increased operational costs.

What stood out

The parts that mattered.

Pulled out of the filing itself, with the figures the company reported.

Revenue Decline
Q1 2026 revenue was $2.65 billion, down 7% from $2.85 billion in Q1 2025.
EPS Negative Surprises
Reported EPS was -$1.31, missing estimates of -$0.23.
EBITDA Down
EBITDA for Q1 2026 fell to $150 million, a decline from $288 million in Q1 2025.
Gross Margin Contraction
Gross profit margin decreased to 4% from 8%, leading to a gross profit drop of 52%.
Increased Litigation Charges
Included a $67 million litigation charge related to PVC antitrust settlement.
Cash Position
Cash and cash equivalents as of March 31, 2026, totaled $2.27 billion.
What to watch

And the other side of it.

The offsets in the same document — the things a summary that only listed the good news would have left out.

Increased Operational Costs
Operational costs rose due to higher fuel costs, impacting margins.
Sector Volatility
Global energy and feedstock price volatility due to Middle East conflicts could affect supply chains.
Litigation Risks
The company is subject to ongoing litigation expenses that could negatively impact financial conditions.
The numbers

What they reported.

What the company itself reported, taken out of the document.

Earnings per share
$-1.31
Gross margin
4%
Segment
Housing and Infrastructure Products
Segment
Performance and Essential Materials
Guidance

What they said about what is next.

No quantitative guidance was provided for future periods.

How we read the filing overall

The filing reads worse than the one before it.

One reading of one document. It is not advice, and it is not a forecast.

This is our reading of a public filing, not the filing. Read the original on SEC.gov · Educational only. Nothing here is investment advice.

Read the next one first.

We read every filing WLK makes the day it lands, and put it next to what the options market did about it. Members get both, and an alert when a filing arrives.

Cancel anytime · Month to month · Switch tiers whenever