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Stocks Industrials WLKP

NYSE · Industrials

Westlake Chemical Partners LP (WLKP)

Westlake Chemical Partners LP brought in $1.2B of revenue over the twelve months to September 30, 2026, up 9.4% from a year earlier. Net income was $59.2M, a net margin of 4.8%. Operating cash flow minus capital spending left $201.7M of free cash flow in fiscal 2025. At September 30, 2026 it held $47.6M in cash. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on November 4, 2026.

Free, no password. An email when WLKP files with the SEC.

Price
$21.25
+1.14% on the day · November 10, 2026
52-week range $17.75 to $23.88
Market cap
$749M
Revenue (last 12 months)
$1.2B
+9.4% year on year
Net margin
4.8%

Key facts about Westlake Chemical Partners LP

Net worth
Westlake Chemical Partners LP has a market value (market cap) of $749M at the latest share price. A company's "net worth" usually means this market value or the shareholders' equity on its balance sheet.
Revenue and profit
In fiscal 2025 revenue was $1.2B (+2.7% year on year), with net income of $48.7M. Over the 12 months to September 30, 2026: revenue $1.2B, net income $59.2M.
Cash flow
In fiscal 2025 operations brought in $280.5M of cash; after $78.8M of capital spending, free cash flow was $201.7M.
Latest report
The latest periodic report (quarterly report, 10-Q) was filed with the SEC on November 4, 2026 and covers the period to September 30, 2026. Open on SEC EDGAR
Next earnings report
Westlake Chemical Partners LP's next report is expected around February 23, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

What Westlake Chemical Partners LP does

Westlake Chemical Partners LP is registered with the SEC under industry code SIC 2860 (Industrial Organic Chemicals). Its shares trade on NYSE under the ticker WLKP.

Revenue and profit by year

Revenue
FY18: $1.3B $1.3B FY18FY19: $1.1B $1.1B FY19FY20: $966.7M $966.7M FY20FY21: $1.2B $1.2B FY21FY22: $1.6B $1.6B FY22FY23: $1.2B $1.2B FY23FY24: $1.1B $1.1B FY24FY25: $1.2B $1.2B FY25
Net income
FY18: $49.3M $49.3M FY18FY19: $61M $61M FY19FY20: $66.2M $66.2M FY20FY21: $82.5M $82.5M FY21FY22: $64.2M $64.2M FY22FY23: $54.3M $54.3M FY23FY24: $62.4M $62.4M FY24FY25: $48.7M $48.7M FY25

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2025$1.2B$319.6M$48.7Mn/a$201.7M
2024$1.1B$390.4M$62.4Mn/a$436M
2023$1.2B$357.7M$54.3Mn/a$405.2M
2022$1.6B$347.7M$64.2Mn/a$409.6M
2021$1.2B$410.7M$82.5Mn/a$327.3M
2020$966.7M$353M$66.2Mn/a$336.4M

Earnings: every quarter and the next report date

Full financial statements: income, balance sheet and cash flow

Next report expected around February 23, 2027.

Estimated from its filing rhythm: 52 weeks after its report of February 24, 2026. Not a date the company has announced. See the report calendar · Earnings, quarter by quarter

Where WLKP ranks in Industrials

Revenue$1.2B
#271 of 603 in Industrials · Top 45%
Revenue growth+2.7%
#303 of 520 in Industrials · Bottom 42%
Net margin4.2%
#235 of 523 in Industrials · Top 45%
Free cash flow margin17.3%
#49 of 489 in Industrials · Top 10%

Latest fiscal year of every company in the sector with the figure reported. Revenue is ranked among companies reporting in US dollars; growth and margins among companies with at least 10 million of revenue. Industrials

Latest SEC filings

What Westlake Chemical Partners LP has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. November 4, 2026
    Quarterly report 10-Q · period to September 30, 2026Revenue rose 1.8% to $314.5M versus the same quarter last year; net income rose 11% to $16.2M.
  2. November 4, 2026
  3. August 31, 2026
  4. August 5, 2026
    Quarterly report 10-Q · period to June 30, 2026Revenue was flat at $297.1M versus the same quarter last year; net income fell 2.2% to $14.2M.
  5. August 4, 2026
  6. May 6, 2026
    Quarterly report 10-Q · period to March 31, 2026Revenue rose 29% to $305.7M versus the same quarter last year; net income rose 186% to $14.2M.
  7. May 5, 2026
  8. April 20, 2026
  9. March 4, 2026
  10. March 4, 2026
    Annual report 10-K · period to December 31, 2025Revenue rose 2.7% to $1.2B versus the prior year; net income fell 22% to $48.7M.

Recent insider filings (Forms 3, 4 and 144): 10, the latest on August 31, 2026. Insider transactions on SEC

Insider trades

What the people running Westlake Chemical Partners LP did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider trades were reported in the last 90 days.

Bought (open market)
$0
last 90 days
Sold
$0
last 90 days
DateInsiderWhatSharesPriceValueFiling
August 6, 2026 Finley G StephenDirector Exercised options 5,005 - - Form 4
August 6, 2026 Woelfel RandyDirector Exercised options 5,005 - - Form 4
August 6, 2026 Woelfel RandyDirector Other change 5,005 $21.35 $106.9K Form 4
August 6, 2026 Friel Lisa A.Director Exercised options 5,005 - - Form 4
August 6, 2026 Friel Lisa A.Director Other change 2,502 $21.35 $53.4K Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns WLKP

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

No holder of 5% or more has filed about this company in that window.

Latest filings below 5%: Energy Income Partners, LLC 4.44% (February 17, 2026).

Largest institutional holders

No Form 13F positions imported for this company yet.

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

3 insiders reported holding 70,514 shares in total, about $1.5M at the last price.

HolderSharesAs of
Finley G StephenDirector 36,935 August 6, 2026
Woelfel RandyDirector 23,913 August 6, 2026
Friel Lisa A.Director 9,666 August 6, 2026

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about WLKP

What does Westlake Chemical Partners LP do?

Westlake Chemical Partners LP is a company in the Industrials sector, listed on NYSE as WLKP. Its shares trade on NYSE under the ticker WLKP.

What is Westlake Chemical Partners LP's net worth?

Westlake Chemical Partners LP has a market value (market cap) of $749M at the latest share price. A company's "net worth" usually means this market value or the shareholders' equity on its balance sheet.

Is Westlake Chemical Partners LP profitable?

Yes. Over the twelve months to September 30, 2026 it reported net income of $59.2M on revenue of $1.2B, a net margin of 4.8%.

How much revenue does Westlake Chemical Partners LP make?

Over the twelve months to September 30, 2026 Westlake Chemical Partners LP reported revenue of $1.2B. That is 9.4% more than a year earlier.

When did Westlake Chemical Partners LP last report?

Its most recent periodic report is the quarterly report (10-Q) filed on November 4, 2026. It covers the period to September 30, 2026.

When is Westlake Chemical Partners LP's next earnings report?

Westlake Chemical Partners LP's next report is expected around February 23, 2027. That is an estimate from its filing rhythm, not a date the company has announced.

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Where the numbers come from

Financial figures are the values Westlake Chemical Partners LP tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.