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Side-by-side financial comparison of Simpson Manufacturing Co., Inc. (SSD) and Westlake Chemical Partners LP (WLKP). Click either name above to swap in a different company.

Simpson Manufacturing Co., Inc. is the larger business by last-quarter revenue ($588.0M vs $323.0M, roughly 1.8× Westlake Chemical Partners LP). Simpson Manufacturing Co., Inc. runs the higher net margin — 15.0% vs 4.5%, a 10.5% gap on every dollar of revenue. On growth, Westlake Chemical Partners LP posted the faster year-over-year revenue change (11.4% vs 9.1%). Over the past eight quarters, Westlake Chemical Partners LP's revenue compounded faster (6.5% CAGR vs -0.8%).

Simpson Manufacturing Company is a leading building materials manufacturer in the United States that produces structural connectors, fasteners, anchors, and products for new construction and retrofitting.

Westlake Chemical Partners LP is a petrochemical limited partnership that manufactures and markets basic products including ethylene, polyethylene, and styrene monomers. It operates mainly in North America, serving packaging, construction, consumer goods, and industrial manufacturing sectors.

SSD vs WLKP — Head-to-Head

Bigger by revenue
SSD
SSD
1.8× larger
SSD
$588.0M
$323.0M
WLKP
Growing faster (revenue YoY)
WLKP
WLKP
+2.3% gap
WLKP
11.4%
9.1%
SSD
Higher net margin
SSD
SSD
10.5% more per $
SSD
15.0%
4.5%
WLKP
Faster 2-yr revenue CAGR
WLKP
WLKP
Annualised
WLKP
6.5%
-0.8%
SSD

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
SSD
SSD
WLKP
WLKP
Revenue
$588.0M
$323.0M
Net Profit
$88.2M
$14.5M
Gross Margin
45.2%
30.0%
Operating Margin
19.5%
27.8%
Net Margin
15.0%
4.5%
Revenue YoY
9.1%
11.4%
Net Profit YoY
13.3%
-3.0%
EPS (diluted)
$2.13

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
SSD
SSD
WLKP
WLKP
Q1 26
$588.0M
Q4 25
$539.3M
$323.0M
Q3 25
$623.5M
$308.9M
Q2 25
$631.1M
$297.1M
Q1 25
$538.9M
$237.6M
Q4 24
$517.4M
$290.1M
Q3 24
$587.2M
$277.0M
Q2 24
$597.0M
$284.2M
Net Profit
SSD
SSD
WLKP
WLKP
Q1 26
$88.2M
Q4 25
$56.2M
$14.5M
Q3 25
$107.4M
$14.7M
Q2 25
$103.5M
$14.6M
Q1 25
$77.9M
$4.9M
Q4 24
$55.4M
$15.0M
Q3 24
$93.5M
$18.1M
Q2 24
$97.8M
$14.4M
Gross Margin
SSD
SSD
WLKP
WLKP
Q1 26
45.2%
Q4 25
43.4%
30.0%
Q3 25
46.4%
32.2%
Q2 25
46.7%
32.8%
Q1 25
46.8%
22.8%
Q4 24
44.0%
34.0%
Q3 24
46.8%
42.2%
Q2 24
46.7%
35.6%
Operating Margin
SSD
SSD
WLKP
WLKP
Q1 26
19.5%
Q4 25
13.9%
27.8%
Q3 25
22.6%
29.8%
Q2 25
22.2%
30.7%
Q1 25
19.0%
19.6%
Q4 24
14.8%
31.7%
Q3 24
21.3%
39.6%
Q2 24
22.1%
32.9%
Net Margin
SSD
SSD
WLKP
WLKP
Q1 26
15.0%
Q4 25
10.4%
4.5%
Q3 25
17.2%
4.7%
Q2 25
16.4%
4.9%
Q1 25
14.5%
2.1%
Q4 24
10.7%
5.2%
Q3 24
15.9%
6.5%
Q2 24
16.4%
5.1%
EPS (diluted)
SSD
SSD
WLKP
WLKP
Q1 26
$2.13
Q4 25
$1.34
Q3 25
$2.58
Q2 25
$2.47
Q1 25
$1.85
Q4 24
$1.31
Q3 24
$2.21
Q2 24
$2.31

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
SSD
SSD
WLKP
WLKP
Cash + ST InvestmentsLiquidity on hand
$341.0M
$44.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$2.1B
Total Assets
$3.0B
$1.3B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
SSD
SSD
WLKP
WLKP
Q1 26
$341.0M
Q4 25
$384.1M
$44.3M
Q3 25
$297.3M
$37.9M
Q2 25
$190.4M
$36.6M
Q1 25
$150.3M
$49.6M
Q4 24
$239.4M
$58.3M
Q3 24
$339.4M
$60.2M
Q2 24
$354.9M
$66.0M
Total Debt
SSD
SSD
WLKP
WLKP
Q1 26
Q4 25
$300.0M
Q3 25
$371.3M
Q2 25
$376.9M
Q1 25
$382.5M
Q4 24
$388.1M
Q3 24
$393.8M
Q2 24
$399.4M
Stockholders' Equity
SSD
SSD
WLKP
WLKP
Q1 26
$2.1B
Q4 25
$2.0B
Q3 25
$2.0B
Q2 25
$1.9B
Q1 25
$1.9B
Q4 24
$1.8B
Q3 24
$1.9B
Q2 24
$1.8B
Total Assets
SSD
SSD
WLKP
WLKP
Q1 26
$3.0B
Q4 25
$3.1B
$1.3B
Q3 25
$3.0B
$1.3B
Q2 25
$3.0B
$1.3B
Q1 25
$2.8B
$1.4B
Q4 24
$2.7B
$1.3B
Q3 24
$2.9B
$1.3B
Q2 24
$2.8B
$1.3B
Debt / Equity
SSD
SSD
WLKP
WLKP
Q1 26
Q4 25
0.15×
Q3 25
0.19×
Q2 25
0.20×
Q1 25
0.21×
Q4 24
0.21×
Q3 24
0.21×
Q2 24
0.23×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
SSD
SSD
WLKP
WLKP
Operating Cash FlowLast quarter
$120.4M
Free Cash FlowOCF − Capex
$111.5M
FCF MarginFCF / Revenue
34.5%
Capex IntensityCapex / Revenue
2.7%
Cash ConversionOCF / Net Profit
8.28×
TTM Free Cash FlowTrailing 4 quarters
$201.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
SSD
SSD
WLKP
WLKP
Q1 26
Q4 25
$155.7M
$120.4M
Q3 25
$170.2M
$105.2M
Q2 25
$125.2M
$9.1M
Q1 25
$7.6M
$45.8M
Q4 24
$115.8M
$132.5M
Q3 24
$103.3M
$126.1M
Q2 24
$111.1M
$121.9M
Free Cash Flow
SSD
SSD
WLKP
WLKP
Q1 26
Q4 25
$119.0M
$111.5M
Q3 25
$133.9M
$75.6M
Q2 25
$87.3M
$-15.3M
Q1 25
$-42.6M
$29.8M
Q4 24
$60.3M
$119.0M
Q3 24
$58.1M
$110.5M
Q2 24
$70.9M
$111.7M
FCF Margin
SSD
SSD
WLKP
WLKP
Q1 26
Q4 25
22.1%
34.5%
Q3 25
21.5%
24.5%
Q2 25
13.8%
-5.2%
Q1 25
-7.9%
12.6%
Q4 24
11.7%
41.0%
Q3 24
9.9%
39.9%
Q2 24
11.9%
39.3%
Capex Intensity
SSD
SSD
WLKP
WLKP
Q1 26
Q4 25
6.8%
2.7%
Q3 25
5.8%
9.6%
Q2 25
6.0%
8.2%
Q1 25
9.3%
6.7%
Q4 24
10.7%
4.6%
Q3 24
7.7%
5.6%
Q2 24
6.7%
3.6%
Cash Conversion
SSD
SSD
WLKP
WLKP
Q1 26
Q4 25
2.77×
8.28×
Q3 25
1.58×
7.18×
Q2 25
1.21×
0.62×
Q1 25
0.10×
9.25×
Q4 24
2.09×
8.83×
Q3 24
1.10×
6.95×
Q2 24
1.14×
8.45×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

SSD
SSD

Segment breakdown not available.

WLKP
WLKP

Affiliated Entity$296.9M92%
Nonrelated Party$26.2M8%

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