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Stocks · Materials · Industrial Organic Chemicals

Westlake Chemical Partners LP

WLKP Clue Score63
United States Fiscal year ends December CIK 0001604665
$21.19 -1.03% Close, 9 Oct 2026
Alert on the numbers Alert on insider trades
Price $21.19 −15.58% Close, 9 Oct 2026

Closing prices at the end of each trading day, from 12 Oct 2016. Not a live quote. Adjusted for share splits, so the line has no step at a split; dividends are not added back. P/E and P/FCF are the market value over the last full fiscal year's net income or free cash flow, as public on each day, so they step once a year when the annual report comes out. A hatched band marks a stretch with none: a year of net loss, or of cash burnt.

Revenue and profit

What the business sells, and what is left of it. Point at a year for the detail.
RevenueOperating incomeNet income
Fiscal year 2016Revenue986.7Operating income366.4Net income40.9Fiscal year 2017Revenue1,173.0 +18.9%Operating income374.4Net income48.7 +18.9%Fiscal year 2018Revenue1,285.6 +9.6%Operating income349.6Net income49.3 +1.4%Fiscal year 2019Revenue154.2 −88.0%Operating income350.2Net income61.0 +23.6%Fiscal year 2020Revenue78.4 −49.2%Operating income353.0Net income66.2 +8.5%Fiscal year 2021Revenue188.3 +140.1%Operating income410.7Net income82.5 +24.8%Fiscal year 2022Revenue250.2 +32.9%Operating income347.7Net income64.2 −22.3%Fiscal year 2023Revenue1,190.8 +375.9%Operating income357.7Net income54.3 −15.4%Fiscal year 2024Revenue1,135.9 −4.6%Operating income390.4Net income62.4 +14.9%Fiscal year 2025Revenue1,166.7 +2.7%Operating income319.6Net income48.7 −21.9%
FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Revenue 986.7 1,173.0 1,285.6 154.2 78.4 188.3 250.2 1,190.8 1,135.9 1,166.7
Growth +18.9% +9.6% −88.0% −49.2% +140.1% +32.9% +375.9% −4.6% +2.7%
Operating income 366.4 374.4 349.6 350.2 353.0 410.7 347.7 357.7 390.4 319.6
Net income 40.9 48.7 49.3 61.0 66.2 82.5 64.2 54.3 62.4 48.7
Growth +18.9% +1.4% +23.6% +8.5% +24.8% −22.3% −15.4% +14.9% −21.9%

Margins

How much of each dollar of revenue it keeps. Point at a year for the detail.
Gross marginOperating marginNet margin
Fiscal year 2016Gross margin39.7%Operating margin37.1%Net margin4.1%Free cash flow margin−1.2%Fiscal year 2017Gross margin34.4%Operating margin31.9%Net margin4.1%Free cash flow margin39.9%Fiscal year 2018Gross margin29.3%Operating margin27.2%Net margin3.8%Free cash flow margin30.8%Fiscal year 2019Gross margin246.0%Operating margin227.0%Net margin39.5%Free cash flow margin263.9%Fiscal year 2020Gross margin483.1%Operating margin450.1%Net margin84.4%Free cash flow margin429.0%Fiscal year 2021Gross margin234.6%Operating margin218.1%Net margin43.8%Free cash flow margin173.8%Fiscal year 2022Gross margin150.8%Operating margin138.9%Net margin25.6%Free cash flow margin163.7%Fiscal year 2023Gross margin32.5%Operating margin30.0%Net margin4.6%Free cash flow margin34.0%Fiscal year 2024Gross margin36.9%Operating margin34.4%Net margin5.5%Free cash flow margin38.4%Fiscal year 2025Gross margin29.8%Operating margin27.4%Net margin4.2%Free cash flow margin17.3%
FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Gross margin 39.7% 34.4% 29.3% 246.0% 483.1% 234.6% 150.8% 32.5% 36.9% 29.8%
Operating margin 37.1% 31.9% 27.2% 227.0% 450.1% 218.1% 138.9% 30.0% 34.4% 27.4%
Net margin 4.1% 4.1% 3.8% 39.5% 84.4% 43.8% 25.6% 4.6% 5.5% 4.2%
Free cash flow margin −1.2% 39.9% 30.8% 263.9% 429.0% 173.8% 163.7% 34.0% 38.4% 17.3%

Cash flow

The cash the business makes, what it reinvests, and what it hands back. Point at a year for the detail.
Operating cash flowCapital expenditureFree cash flow
Fiscal year 2016Operating cash flow287.7Capital expenditure−299.6Free cash flow−11.9Fiscal year 2017Operating cash flow537.4Capital expenditure−68.9Free cash flow468.5Fiscal year 2018Operating cash flow436.2Capital expenditure−39.9Free cash flow396.3 −15.4%Fiscal year 2019Operating cash flow450.8Capital expenditure−43.7Free cash flow407.1 +2.7%Fiscal year 2020Operating cash flow373.4Capital expenditure−37.0Free cash flow336.4 −17.4%Fiscal year 2021Operating cash flow408.4Capital expenditure−81.2Free cash flow327.3 −2.7%Fiscal year 2022Operating cash flow463.7Capital expenditure−54.1Free cash flow409.6 +25.2%Fiscal year 2023Operating cash flow452.0Capital expenditure−46.8Free cash flow405.2 −1.1%Fiscal year 2024Operating cash flow485.0Capital expenditure−49.0Free cash flow436.0 +7.6%Fiscal year 2025Operating cash flow280.5Capital expenditure−78.8Free cash flow201.7 −53.8%
FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Operating cash flow 287.7 537.4 436.2 450.8 373.4 408.4 463.7 452.0 485.0 280.5
Capital expenditure −299.6 −68.9 −39.9 −43.7 −37.0 −81.2 −54.1 −46.8 −49.0 −78.8
Free cash flow −11.9 468.5 396.3 407.1 336.4 327.3 409.6 405.2 436.0 201.7
Growth −15.4% +2.7% −17.4% −2.7% +25.2% −1.1% +7.6% −53.8%

Balance sheet

What it holds against what it owes, at each year end. Point at a year for the detail.
Cash
Fiscal year 2016Cash88.9Fiscal year 2017Cash27.0Fiscal year 2018Cash19.7Fiscal year 2019Cash19.9Fiscal year 2020Cash17.2Fiscal year 2021Cash17.1Fiscal year 2022Cash64.8Fiscal year 2023Cash58.6Fiscal year 2024Cash58.3Fiscal year 2025Cash44.3
FY2016FY2017FY2018FY2019FY2020FY2021FY2022FY2023FY2024FY2025
Cash 88.9 27.0 19.7 19.9 17.2 17.1 64.8 58.6 58.3 44.3

In millions of USD, except per-share figures and ratios. Fiscal years, as last filed with the SEC.

Financial statements FY2025 · 10-K

Cash flow

In millions of USD, except per-share figures; shares in millions. Fiscal years ending December, each column as last filed with the SEC.
Click a line to chart it
Fiscal year FY2016 31 Dec 2016 FY2017 31 Dec 2017 FY2018 31 Dec 2018 FY2019 31 Dec 2019 FY2020 31 Dec 2020 FY2021 31 Dec 2021 FY2022 31 Dec 2022 FY2023 31 Dec 2023 FY2024 31 Dec 2024 FY2025 31 Dec 2025
Operations
287.7 537.4 436.2 450.8 373.4 408.4 463.7 452.0 485.0 280.5
Growth +86.8% −18.8% +3.4% −17.2% +9.4% +13.5% −2.5% +7.3% −42.2%
98.2 114.0 108.8 107.3 103.2 108.8 121.1 110.2 111.9 128.0
Investment
−299.6 −68.9 −39.9 −43.7 −37.0 −81.2 −54.1 −46.8 −49.0 −78.8
calc −11.9 468.5 396.3 407.1 336.4 327.3 409.6 405.2 436.0 201.7
Growth −15.4% +2.7% −17.4% −2.7% +25.2% −1.1% +7.6% −53.8%
−299.5 −203.2 −51.8 −57.7 2.0 −64.3 −12.0 −75.9 −89.0 31.2
Financing
−68.9 −396.0 −391.6 −392.9 −378.2 −344.2 −404.0 −382.2 −396.3 −325.7

Lines marked calc are worked out here from filed figures; point at one for how. Capital expenditure, dividends and buybacks are shown as money out, so negative.