12 years of revenue, profit, cash flow and balance-sheet history through FY2025,
from SEC filings — with a computed, factual read of the trend.
Updated Overview →
Growth & profitability
Revenue has grown 3.8% per year over the past 5 years.
Net income has grown slower than revenue (-5.9% vs 3.8% per year).
Operating margin has contracted, at 27.4% in the latest year.
Free cash flow has declined 9.7% per year over the past 5 years.
Financial health
Operating income covered interest expense 14× in the latest year.
Revenue & net income
RevenueNet income
Margins (gross / operating / net)
GrossOperatingNet
Free cash flow (CFO − capex)
Free cash flow
Cash vs total debt
CashTotal debt
Cash flow: operating / investing / financing
OperatingInvestingFinancing
Key annual figures
FY
Revenue
Net income
Gross M
Op M
FCF
Total debt
Cash
2025
$1.2B
$49M
29.8%
27.4%
$202M
—
$44M
2024
$1.1B
$62M
36.9%
34.4%
$436M
—
$58M
2023
$1.2B
$54M
32.5%
30.0%
$405M
—
$59M
2022
$1.6B
$64M
23.7%
21.8%
$410M
—
$65M
2021
$1.2B
$83M
36.4%
33.8%
$327M
—
$17M
2020
$967M
$66M
39.2%
36.5%
$336M
—
$17M
2019
$1.1B
$61M
34.8%
32.1%
$407M
—
$20M
2018
$1.3B
$49M
29.3%
27.2%
$396M
—
$20M
2017
$1.2B
$49M
34.4%
31.9%
$468M
—
$27M
2016
$987M
$41M
39.7%
37.1%
-$12M
—
$89M
2015
—
$40M
—
—
$221M
—
$170M
2014
—
$14M
—
—
$401M
—
$134M
Revenue & net income
RevenueNet income
Margins (gross / operating / net)
GrossOperatingNet
Free cash flow (CFO − capex, quarterly)
Free cash flow
Cash vs total debt
CashTotal debt
Cash flow: operating / investing / financing
OperatingInvestingFinancing
Key quarterly figures
Quarter
Revenue
Net income
Gross M
Op M
FCF
Total debt
Cash
Mar '26
$306M
$14M
30.7%
28.3%
$105M
—
$44M
Dec '25
$323M
$15M
30.0%
27.8%
$112M
—
$44M
Sep '25
$309M
$15M
32.2%
29.8%
$76M
—
$38M
Jun '25
$297M
$15M
32.8%
30.7%
-$15M
—
$37M
Mar '25
$238M
$5M
22.8%
19.6%
$30M
—
$50M
Dec '24
$290M
$15M
34.0%
31.7%
$119M
—
$58M
Sep '24
$277M
$18M
42.2%
39.6%
$111M
—
$60M
Jun '24
$284M
$14M
35.6%
32.9%
$112M
—
$66M
Mar '24
$285M
$15M
35.9%
33.4%
$95M
—
$56M
Dec '23
$297M
$14M
33.9%
31.2%
$95M
—
$59M
Sep '23
$322M
$13M
28.9%
26.8%
$84M
—
$66M
Jun '23
$264M
$12M
33.2%
30.5%
$94M
—
$59M
Mar '23
$308M
$15M
34.5%
31.9%
$132M
—
$105M
Dec '22
$367M
$17M
26.8%
26.0%
$114M
—
$65M
Sep '22
$415M
$15M
21.8%
19.7%
$102M
—
$19M
Jun '22
$449M
$16M
21.7%
19.5%
$109M
$400M
$18M
Mar '22
$362M
$16M
25.2%
23.0%
$84M
$400M
$19M
Dec '21
$330M
$30M
44.5%
42.6%
-$21M
—
$17M
Sep '21
$294M
$13M
25.8%
23.2%
$88M
—
$19M
Jun '21
$322M
$25M
40.7%
38.1%
$117M
—
$18M
Valuation over time
How the market has priced WLKP against its own fundamentals since 2023-03 —
each month-end's share price set against the most recent annual filing, so the multiple moves
as price runs ahead of (or behind) earnings. Split-adjusted.
The price-to-earnings ratio has risen from 12.2× (Mar '23) to 16.4× (Jun '26).
The price-to-sales ratio has risen from 0.5× (Mar '23) to 0.7× (Jun '26).
Price / earnings (P/E)
P/E
Price / sales (P/S)
P/S
Frequently asked questions
Is WLKP growing its revenue and profit?
Over the past 5 years, Westlake Chemical Partners LP's revenue has grown 3.8% per year, and net income declined 5.9% per year. These are computed facts, not advice.
How much debt does WLKP have?
As of FY2025, Westlake Chemical Partners LP reported — of total debt against $44M of cash; operating income covered interest expense 14×.
What is WLKP's profit margin?
In FY2025, gross margin was 29.8%, operating margin 27.4%, and net margin 4.2%.
What is WLKP's P/E ratio?
As of Jun '26, Westlake Chemical Partners LP traded at a price-to-earnings ratio of about 16.4× (market cap ÷ latest annual net income). The valuation charts above show how its P/E, P/S have moved with the share price. These are computed facts, not advice.
Where does this data come from?
All figures are extracted from the company’s SEC EDGAR/XBRL filings — 10-K annual reports and 10-Q quarterly reports (use the Annual / Quarterly toggle). Quarterly figures are derived from the as-filed statements (year-to-date amounts are differenced into discrete quarters). Growth rates and ratios are computed by tradmap; nothing here is investment advice.
Source: SEC EDGAR / XBRL (10-K + 10-Q filings) · prices EOD (Databento), corporate-action-adjusted ·
growth rates, valuation multiples & ratios computed by tradmap. Valuation uses each month-end price
against the latest annual filing. Informational only — not investment advice.