Antero Midstream vs International Seaways
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KIRAβs take AI analyst
I put Antero Midstream and International Seaways side by side, using each oneβs latest annual report. Here is what stands out:
- Antero Midstream is the larger business, with $1.2B of revenue in fiscal 2025 against $843M for International Seaways.
- Antero Midstream grew revenue faster (7.4%, against β11.4%).
- Antero Midstream kept more of each dollar of sales as operating profit (54.3% operating margin, against 41.0%).
- Investors pay more for each dollar of Antero Midstreamβs earnings: a P/E of 24.8x against 7.1x for International Seaways.
Who comes out ahead
Of the 8 measures where higher (or lower) is clearly better, how many each company leads.
Antero Midstream
AM
5/8
Revenue growthOperating marginReturn on equityPiotroski F-scoreShare count change
International Seaways
INSW
3/8
5-year growthNet marginNet debt / EBITDA
Side by side
Best in the row
| Latest fiscal year | AM FY25 | INSW FY25 |
|---|---|---|
| Size | ||
| Market cap | $9.9B | $5.5B |
| Revenue | $1.2B | $843M |
| Free cash flow | β | $379M |
| Net income | $413M | $309M |
| Growth | ||
| Revenue growth | 7.4% | β11.4% |
| 5-year growth | 5.7% | 14.9% |
| Share count change | β0.6% | β0.2% |
| Profitability | ||
| Gross margin | β | β |
| Operating margin | 54.3% | 41.0% |
| Net margin | 34.8% | 36.7% |
| FCF margin | β | 44.9% |
| Return on capital | 9.2% | β |
| Return on equity | 20.2% | 16.0% |
| Balance sheet | ||
| Net debt | $3.0B | $400M |
| Net debt / EBITDA | 3.6x | 0.8x |
| Dividends and buybacks | $574M | $145M |
| Valuation & quality | ||
| P/E | 24.8x | 7.1x |
| Piotroski F-score | 7 | 6 |
Ten years
Revenue
Operating margin
Free cash flow
Return on capital
Each company's latest fiscal year; fiscal years end in different months. The best value in each row is highlighted where higher (or lower) is clearly better. Not investment advice.

