BIO vs ILMN
Bio-Rad Laboratories, Inc. (BIO) and Illumina, Inc. (ILMN) are both filed with the SEC under Laboratory Analytical Instruments. ILMN is 3.2× BIO's size by market cap ($34.4B against $10.8B); ILMN trades at the higher fiscal-year P/E (41.8× against 14.0×); BIO reports the higher net margin (29.4% against 19.6%); ILMN grew sales faster over three years (-1.8% against -2.7%); and over the past year ILMN returned +117.4% against BIO's +32.0%.
| BIO | ILMN | |
|---|---|---|
| Last close | $387.70 | $215.59 |
| Market cap | $10.8B | $34.4B |
| P/E (FY) | 14.0× | 41.8× |
| P/S | 4.2× | 7.9× |
| EV/EBITDA | 49.2× | — |
| Gross margin | 51.9% | 66.1% |
| Operating margin | 1.8% | 18.6% |
| Net margin | 29.4% | 19.6% |
| Return on equity | 10.8% | 33.4% |
| Sales growth (3y) | -2.7% | -1.8% |
| 1-year return | +32.0% | +117.4% |
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: BIO FY2025 (ended 2025-12-31); ILMN FY2025 (ended 2025-12-28). — 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 A ratio goes unpublished for more than one reason: a component the calculation needs is not on file, the filing does not tag the line it is read from, or the calculation is not defined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
| BIO | ILMN | |
|---|---|---|
| Institutional holders (13F) | 390 | 840 |
| Insider buyers − sellers (180d) | — | -5 |
| Congressional trades disclosed (180d) | 0 | 0 |
| Executive-branch officials on file — trades disclosed (180d) | 0 | 2 |
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.
BIO vs ILMN: common questions
- Is BIO bigger than ILMN?
- ILMN carries the larger market cap — $34.4B against $10.8B, both struck on 2026-08-27.
- Which trades at a higher P/E, BIO or ILMN?
- ILMN, at a fiscal-year 41.8× against 14.0× for BIO. Both are price ÷ latest full-year diluted earnings per share, not a trailing-twelve-month P/E.
- How have BIO and ILMN performed over the past year?
- ILMN returned +117.4% and BIO +32.0%, measured on the trailing calendar year to the last close.
- How many institutions hold BIO and ILMN?
- 390 13F filers report a position in BIO and 840 in ILMN, on the latest quarter in the panel.
- Are BIO and ILMN in the same industry?
- Both are filed with the SEC under Laboratory Analytical Instruments, which is the classification this pairing is built on.
BIO overview → · ILMN overview → · BIO institutional ownership → · ILMN institutional ownership → · Executive branch and ILMN →
More in Laboratory Analytical Instruments: A vs BIO · A vs ILMN · A vs RVTY · A vs WAT
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Source: SPZCO — https://spzco.com/vs/bio-vs-ilmn