Stocks / AAT vs CSGP

AAT vs CSGP: Which Stock Is the Better Buy?

American Assets Trust, Inc. and CoStar Group, Inc. side by side — fundamentals from SEC filings, refreshed nightly. Sector: Real Estate.

CSGP is the larger company ($11.7B vs $1.9B). On the fundamentals, CSGP grows revenue faster (14.4% vs 4.8%); AAT earns a higher net margin (12.8% vs 0.2%); AAT has the stronger return on equity (4.8% vs 0.1%). Both carry 1 potential red flag in the filings. Full numbers below — the stronger figure on each row is in green.

AI verdict — AAT vs CSGP, 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.

 American Assets Trust, Inc. (AAT)CoStar Group, Inc. (CSGP)
Market cap$1.9B$11.7B
Revenue (latest FY)$436.20M$3.25B
Net income (latest FY)$55.65M$7.00M
Revenue growth (5y CAGR)4.8%14.4%
Net margin12.8%0.2%
Return on equity4.8%0.1%
P/E ratio81.8159.8
Dividend yield5.6%
Profitable years (of last 10)1010
Positive free cash flowYesYes

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See the full AAT vs CSGP 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 AAT's full financials →   Open CSGP's full financials →

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Frequently asked questions

Which is bigger, AAT or CSGP?

CoStar Group, Inc. is larger by market capitalization — $11.7B versus $1.9B.

Which grows faster, AAT or CSGP?

Over the last five fiscal years, CoStar Group, Inc. grew revenue faster — 14.4%/yr versus 4.8%/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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