MKSI vs ROP
Mks Inc (MKSI) and Roper Technologies Inc (ROP) are both filed with the SEC under Industrial Instruments For Measurement, Display, and Control. ROP is 2.3× MKSI's size by market cap ($41.8B against $18.3B); MKSI trades at the higher fiscal-year P/E (62.0× against 29.8×); ROP reports the higher net margin (19.4% against 7.5%); ROP grew sales faster over three years (+13.7% against +3.5%); and over the past year MKSI returned +138.6% against ROP's -18.6%.
| MKSI | ROP | |
|---|---|---|
| Last close | $255.76 | $426.20 |
| Market cap | $18.3B | $41.8B |
| P/E (FY) | 62.0× | 29.8× |
| P/S | 4.7× | 5.3× |
| EV/EBITDA | 25.3× | 16.2× |
| Gross margin | 46.7% | 69.2% |
| Operating margin | 13.4% | 28.3% |
| Net margin | 7.5% | 19.4% |
| Return on equity | 11.7% | 7.9% |
| Sales growth (3y) | +3.5% | +13.7% |
| EPS growth (3y) | -7.7% | -30.6% |
| Dividend yield | 0.3% | 0.8% |
| 1-year return | +138.6% | -18.6% |
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.
Who holds them, and who has traded them
| MKSI | ROP | |
|---|---|---|
| Institutional holders (13F) | 615 | 1,125 |
| Insider buyers − sellers (180d) | -5 | — |
| Congressional trades disclosed (180d) | 0 | 3 |
| Executive-branch officials on file — trades disclosed (180d) | 0 | 9 |
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.
MKSI vs ROP: common questions
- Is MKSI bigger than ROP?
- ROP carries the larger market cap — $41.8B against $18.3B, both struck on 2026-08-27.
- Which trades at a higher P/E, MKSI or ROP?
- MKSI, at a fiscal-year 62.0× against 29.8× for ROP. Both are price ÷ latest full-year diluted earnings per share, not a trailing-twelve-month P/E.
- How have MKSI and ROP performed over the past year?
- MKSI returned +138.6% and ROP -18.6%, measured on the trailing calendar year to the last close.
- How many institutions hold MKSI and ROP?
- 615 13F filers report a position in MKSI and 1,125 in ROP, on the latest quarter in the panel.
- Are MKSI and ROP in the same industry?
- Both are filed with the SEC under Industrial Instruments For Measurement, Display, and Control, which is the classification this pairing is built on.
MKSI overview → · ROP overview → · MKSI institutional ownership → · ROP institutional ownership → · Congress and ROP → · Executive branch and ROP →
More in Industrial Instruments For Measurement, Display, and Control: AME vs DHR · AME vs FTV · AME vs KEYS · AME vs MKSI
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Source: SPZCO — https://spzco.com/vs/mksi-vs-rop