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COST vs DG

Costco Wholesale Corp /New (COST) and Dollar General Corp (DG) are both filed with the SEC under Retail-Variety Stores. COST is 14.9× DG's size by market cap ($414.5B against $27.8B); COST trades at the higher fiscal-year P/E (51.3× against 18.4×); DG reports the higher net margin (3.5% against 2.9%); COST grew sales faster over three years (+6.6% against +4.1%); and over the past year DG returned +12.2% against COST's +0.5%.

COSTDG
Last close$945.47$122.89
Market cap$414.5B$27.8B
P/E (FY)51.3×18.4×
P/S1.5×0.7×
EV/EBITDA31.6×9.6×
Gross margin30.7%
Operating margin3.8%5.2%
Net margin2.9%3.5%
Return on equity30.7%19.0%
Sales growth (3y)+6.6%+4.1%
EPS growth (3y)+11.5%-13.8%
Dividend yield0.5%1.9%
1-year return+0.5%+12.2%

Screener snapshot — prices as of 2026-08-28. Each side's last close is the most recent session the snapshot holds for that company, which can be an earlier one, and its 1-year return is measured to that close. Market caps struck on 2026-08-27. Last close, market cap and the 1-year return are price figures; every other row is computed over the company's latest filed fiscal year, and the two differ: COST FY2025 (ended 2025-08-31); DG FY2026 (ended 2026-01-30). — not published for this company. A ratio goes unpublished for more than one reason: a component the calculation needs is not on file, the filing does not tag the line it is read from, or the calculation is not defined on the filed basis — EV/EBITDA is not printed on non-positive EBITDA, and return on equity is not computed on a zero or negative equity base.

Who holds them, and who has traded them

COSTDG
Institutional holders (13F)4,2011,141
Insider buyers − sellers (180d)-3
Congressional trades disclosed (180d)30
Executive-branch officials on file — trades disclosed (180d)143

Counts only. The congressional figures count transactions dated in the trailing 180 days and disclosed in STOCK Act periodic transaction reports; amounts are filed as ranges and are never summed. The executive-branch figures count the same window of transactions, and they are scoped to one roster. The officials OGE posts for direct download. Insider buyers − sellers counts distinct people filing open-market Form 4 purchases minus distinct people filing open-market sales over the trailing 180 days, capped at ±5. — no open-market Form 4 purchases or sales in the window.

COST vs DG: common questions

Is COST bigger than DG?
COST carries the larger market cap — $414.5B against $27.8B, both struck on 2026-08-27.
Which trades at a higher P/E, COST or DG?
COST, at a fiscal-year 51.3× against 18.4× for DG. Both are price ÷ latest full-year diluted earnings per share, not a trailing-twelve-month P/E.
How have COST and DG performed over the past year?
DG returned +12.2% and COST +0.5%, measured on the trailing calendar year to the last close.
How many institutions hold COST and DG?
4,201 13F filers report a position in COST and 1,141 in DG, on the latest quarter in the panel.
Are COST and DG in the same industry?
Both are filed with the SEC under Retail-Variety Stores, which is the classification this pairing is built on.