Stocks / RPM vs WLK

RPM vs WLK: Which Stock Is the Better Buy?

RPM International Inc. and Westlake Corporation side by side — fundamentals from SEC filings, refreshed nightly. Sector: Basic Materials.

RPM is the larger company ($13.4B vs $11.2B). On the fundamentals, WLK grows revenue faster (8.3% vs 6.0%); RPM earns a higher net margin (9.3% vs -13.5%); RPM has the stronger return on equity (23.9% vs -17.2%). On the filings, RPM carries fewer potential red flags (0 vs 2). Full numbers below — the stronger figure on each row is in green.

AI verdict — RPM vs WLK, read from the filings

The stronger business, the cheaper stock, and the risks — synthesised from both companies’ SEC filings, every figure computed not guessed. Not investment advice.

 RPM International Inc. (RPM)Westlake Corporation (WLK)
Market cap$13.4B$11.2B
Revenue (latest FY)$7.37B$11.17B
Net income (latest FY)$688.69M$-1.51B
Revenue growth (5y CAGR)6.0%8.3%
Net margin9.3%-13.5%
Return on equity23.9%-17.2%
P/E ratio20.2
Dividend yield2.0%2.5%
Profitable years (of last 10)109
Positive free cash flowYesNo

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Use the filing period and source shown by each tool before treating two figures as comparable.

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See the full RPM vs WLK breakdown

Both companies across 19 years of income statement, balance sheet and cash flow — with ratios, health checks and Ask, the SEC-grounded research assistant. Free, no account needed.

Open RPM's full financials →   Open WLK's full financials →

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Frequently asked questions

Which is bigger, RPM or WLK?

RPM International Inc. is larger by market capitalization — $13.4B versus $11.2B.

Which grows faster, RPM or WLK?

Over the last five fiscal years, Westlake Corporation grew revenue faster — 8.3%/yr versus 6.0%/yr, computed from SEC-filed statements.

Where does this data come from?

All figures are computed from official SEC filings (10-K), refreshed nightly. This is a data comparison, not investment advice.

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