GPGrossPatternRESEARCH SYSTEM
SEC CHECK OPERATIONAL
GROSSPATTERN / DETERMINISTIC EVIDENCE / V3

WLK financial changes

Ranked by interpretable importance, issuer history, magnitude, and accounting profile. No directional recommendation.

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WLKWESTLAKE CORP
MEDIUM IMPORTANCEMarginMargin Expansion100TH HISTORICAL PCTL

Gross margin moved 1120 bp higher

Gross margin changed +1120 basis points from the comparable as-filed period. This reverses 3 consecutive comparable moves in the opposite direction.

8.74%19.93%3 prior comparisons
WLKWESTLAKE CORP
MEDIUM IMPORTANCEMarginMargin Expansion67TH HISTORICAL PCTL

Operating margin moved 1482 bp higher

Operating margin changed +1482 basis points from the comparable as-filed period. This reverses 2 consecutive comparable moves in the opposite direction.

-3.69%11.13%3 prior comparisons
WLKWESTLAKE CORP
MEDIUM IMPORTANCEInventoryInventory Normalization100TH HISTORICAL PCTL

Inventory / revenue moved 500 bp lower

Inventory / revenue changed -500 basis points from the comparable as-filed period. This reverses 3 consecutive comparable moves in the opposite direction.

58.62%53.62%3 prior comparisons
WLKWESTLAKE CORP
MEDIUM IMPORTANCEOperating Income67TH HISTORICAL PCTL

Operating income changed across a sign change

Operating income changed +433.9% from the comparable as-filed period. Relative percentage is de-emphasized because the comparison has a sign change. This reverses 2 consecutive comparable moves in the opposite direction.

-$109.0M$364.0M3 prior comparisons
WLKWESTLAKE CORP
LOW IMPORTANCEInventoryInventory Build0TH HISTORICAL PCTL

Inventory increased 1.3%

Inventory changed +1.3% from the comparable as-filed period. The change ranks at the 0th percentile of 4 prior comparable changes. This reverses 2 consecutive comparable moves in the opposite direction.

$1.7B$1.8B4 prior comparisons

Method Importance combines metric-family relevance, magnitude, issuer-history unusualness, persistence, and financial-statement significance. It is analytical prioritization, not a legal materiality conclusion or investment signal.