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
Return on equity & assets (ROE / ROA)
ROEROA
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
ROE
ROA
FCF
Total debt
Cash
2025
$1.2B
$49M
29.8%
27.4%
—
3.9%
$202M
—
$44M
2024
$1.1B
$62M
36.9%
34.4%
—
4.8%
$436M
—
$58M
2023
$1.2B
$54M
32.5%
30.0%
—
4.1%
$405M
—
$59M
2022
$1.6B
$64M
23.7%
21.8%
—
4.7%
$410M
—
$65M
2021
$1.2B
$83M
36.4%
33.8%
—
5.6%
$327M
—
$17M
2020
$967M
$66M
39.2%
36.5%
—
4.9%
$336M
—
$17M
2019
$1.1B
$61M
34.8%
32.1%
—
4.4%
$407M
—
$20M
2018
$1.3B
$49M
29.3%
27.2%
—
3.4%
$396M
—
$20M
2017
$1.2B
$49M
34.4%
31.9%
—
3.2%
$468M
—
$27M
2016
$987M
$41M
39.7%
37.1%
—
2.6%
-$12M
—
$89M
2015
—
$40M
—
—
—
3.1%
$221M
—
$170M
2014
—
$14M
—
—
—
1.2%
$401M
—
$134M
Revenue & net income
RevenueNet income
Margins (gross / operating / net)
GrossOperatingNet
Return on equity & assets (ROE / ROA)
ROEROA
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
ROE
ROA
FCF
Total debt
Cash
Jun '26
$297M
$14M
31.9%
29.4%
—
1.2%
$117M
—
$49M
Mar '26
$306M
$14M
30.7%
28.3%
—
1.1%
$105M
—
$44M
Dec '25
$323M
$15M
30.0%
27.8%
—
1.2%
$112M
—
$44M
Sep '25
$309M
$15M
32.2%
29.8%
—
1.2%
$76M
—
$38M
Jun '25
$297M
$15M
32.8%
30.7%
—
1.1%
-$15M
—
$37M
Mar '25
$238M
$5M
22.8%
19.6%
—
0.4%
$30M
—
$50M
Dec '24
$290M
$15M
34.0%
31.7%
—
1.2%
$119M
—
$58M
Sep '24
$277M
$18M
42.2%
39.6%
—
1.4%
$111M
—
$60M
Jun '24
$284M
$14M
35.6%
32.9%
—
1.1%
$112M
—
$66M
Mar '24
$285M
$15M
35.9%
33.4%
—
1.1%
$95M
—
$56M
Dec '23
$297M
$14M
33.9%
31.2%
—
1.1%
$95M
—
$59M
Sep '23
$322M
$13M
28.9%
26.8%
—
1.0%
$84M
—
$66M
Jun '23
$264M
$12M
33.2%
30.5%
—
0.9%
$94M
—
$59M
Mar '23
$308M
$15M
34.5%
31.9%
—
1.1%
$132M
—
$105M
Dec '22
$367M
$17M
26.8%
26.0%
—
1.2%
$114M
—
$65M
Sep '22
$415M
$15M
21.8%
19.7%
—
1.0%
$102M
—
$19M
Jun '22
$449M
$16M
21.7%
19.5%
—
1.1%
$109M
$400M
$18M
Mar '22
$362M
$16M
25.2%
23.0%
—
1.1%
$84M
$400M
$19M
Dec '21
$330M
$30M
44.5%
42.6%
—
2.0%
-$21M
—
$17M
Sep '21
$294M
$13M
25.8%
23.2%
—
0.9%
$88M
—
$19M
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 15.8× (Nov '26).
The price-to-sales ratio has risen from 0.5× (Mar '23) to 0.7× (Nov '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?
Westlake Chemical Partners LP's P/E (TTM) is 13.32 as of the 2026-11-02 close — market cap ÷ net income over the trailing twelve months where four consecutive quarters are reported, otherwise the latest fiscal year, the same figure as on the WLKP stock page. The valuation chart above sets each month-end's price against the latest annual net income instead, so its latest point (about 15.8× as of Nov '26) can differ. 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), split-adjusted; price return — dividends not reinvested ·
growth rates, valuation multiples & ratios computed by tradmap. Valuation uses each month-end price
against the latest annual filing. Informational only — not investment advice.