Stocks / ERO vs OLN

ERO vs OLN: Which Stock Is the Better Buy?

Ero Copper Corp. and Olin Corporation side by side — fundamentals from SEC filings, refreshed nightly. Sector: Basic Materials.

ERO is the larger company ($2.8B vs $2.7B). On the fundamentals, ERO grows revenue faster (22.6% vs 3.3%); ERO earns a higher net margin (33.6% vs -0.6%); ERO has the stronger return on equity (28.2% vs -2.3%). Both carry 2 potential red flags in the filings. Full numbers below — the stronger figure on each row is in green.

AI verdict — ERO vs OLN, 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.

 Ero Copper Corp. (ERO)Olin Corporation (OLN)
Market cap$2.8B$2.7B
Revenue (latest FY)$785.84M$6.78B
Net income (latest FY)$263.72M$-42.80M
Revenue growth (5y CAGR)22.6%3.3%
Net margin33.6%-0.6%
Return on equity28.2%-2.3%
P/E ratio9.5
Dividend yield3.3%
Profitable years (of last 10)36
Positive free cash flowYesYes

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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 ERO vs OLN 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 ERO's full financials →   Open OLN's full financials →

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Frequently asked questions

Which is bigger, ERO or OLN?

Ero Copper Corp. is larger by market capitalization — $2.8B versus $2.7B.

Which grows faster, ERO or OLN?

Over the last five fiscal years, Ero Copper Corp. grew revenue faster — 22.6%/yr versus 3.3%/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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ERO fundamentals → · OLN fundamentals → · All 1,500+ companies → · Free screener →