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BWXT vs CMI

BWX Technologies, Inc. (BWXT) and Cummins Inc (CMI) are both filed with the SEC under Engines & Turbines. CMI is 5.5× BWXT's size by market cap ($79.0B against $14.3B); BWXT trades at the higher fiscal-year P/E (43.5× against 28.0×); BWXT reports the higher net margin (10.3% against 8.8%); BWXT grew sales faster over three years (+12.7% against +6.2%); and over the past year CMI returned +42.1% against BWXT's -7.4%.

BWXTCMI
Last close$152.85$564.85
Market cap$14.3B$79.0B
P/E (FY)43.5×28.0×
P/S4.5×2.3×
EV/EBITDA30.8×16.6×
Gross margin25.3%
Operating margin12.6%12.0%
Net margin10.3%8.8%
Return on equity28.4%26.1%
Sales growth (3y)+12.7%+6.2%
EPS growth (3y)+11.3%+10.7%
Dividend yield0.6%1.3%
1-year return-7.4%+42.1%

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 — FY2025 (ended 2025-12-31) for both. — 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 A ratio goes unpublished for more than one reason: a component the calculation needs is not on file, the filing does not tag the line it is read from, or the calculation is not defined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

BWXTCMI
Institutional holders (13F)8201,946
Insider buyers − sellers (180d)-3-5
Congressional trades disclosed (180d)71
Executive-branch officials on file — trades disclosed (180d)03

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.

BWXT vs CMI: common questions

Is BWXT bigger than CMI?
CMI carries the larger market cap — $79.0B against $14.3B, both struck on 2026-08-27.
Which trades at a higher P/E, BWXT or CMI?
BWXT, at a fiscal-year 43.5× against 28.0× for CMI. Both are price ÷ latest full-year diluted earnings per share, not a trailing-twelve-month P/E.
How have BWXT and CMI performed over the past year?
CMI returned +42.1% and BWXT -7.4%, measured on the trailing calendar year to the last close.
How many institutions hold BWXT and CMI?
820 13F filers report a position in BWXT and 1,946 in CMI, on the latest quarter in the panel.
Are BWXT and CMI in the same industry?
Both are filed with the SEC under Engines & Turbines, which is the classification this pairing is built on.