ICLR vs. ILMN: ICON vs. Illumina Stock Comparison
How do ICON (ICLR) and Illumina (ILMN) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.
Company Profile
ICON (ICLR) and Illumina (ILMN) are both classified in the Life Sciences Tools & Services sub-industry within the broader Life Sciences Tools & Services industry, placing them in the closest GICS peer bucket.
| Profile Item | ICLR | ILMN |
|---|---|---|
| Name | ICON plc | Illumina Inc. |
| Country/Region | Ireland | United States |
| GICS Sector | Health Care | Health Care |
| GICS Industry Group | Pharmaceuticals, Biotechnology & Life Sciences | Pharmaceuticals, Biotechnology & Life Sciences |
| GICS Industry | Life Sciences Tools & Services | Life Sciences Tools & Services |
| GICS Sub-Industry | Life Sciences Tools & Services | Life Sciences Tools & Services |
| Market Capitalization | 15.34 billion USD | 32.23 billion USD |
| Currency | USD | USD |
| Exchange | Nasdaq | Nasdaq |
| Listing Date | May 15, 1998 | July 28, 2000 |
| Security Type | Common Stock | Common Stock |
Price Performance
Cumulative Growth
Trailing Returns
Calendar-Year Returns
Performance Metrics
| Metric | ICLR | ILMN |
|---|---|---|
| Total Return (1Y) | 30.55% | 79.70% |
| Total Return (3Y, Annualized) | -6.05% | 28.16% |
| Total Return (5Y, Annualized) | -5.40% | -10.65% |
Risk Profile
Drawdown History
Return Distribution
Risk Metrics
| Metric | ICLR | ILMN |
|---|---|---|
| Volatility (1Y, Annualized) | 68.62% | 48.47% |
| Beta (5Y) | 1.17 | 1.46 |
| Max Drawdown (5Y) | -76.87% | -82.95% |
| Avg. Volume (3M) | 943.50K | 2.77M |
Risk-Adjusted Performance
Risk-Return Positioning
Risk-Adjusted Metrics
| Metric | ICLR | ILMN |
|---|---|---|
| Sharpe Ratio (1Y) | 0.38 | 1.56 |
| Sortino Ratio (1Y) | 0.52 | 2.25 |
Profitability
ROE (TTM)
Illumina (ILMN) at 32.39% sits in the top ROE quartile, while ICON (ICLR) at 4.70% is closer to the peer norm — stronger capital efficiency for ILMN.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
4.70%
- Max
- 109.18%
- Q3
- 6.23%
- ICLR
- 4.70%
- Median
- -26.66%
- Q1
- -64.05%
- Min
- -167.77%
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
32.39%
- Max
- 109.18%
- ILMN
- 32.39%
- Q3
- 6.23%
- Median
- -26.66%
- Q1
- -64.05%
- Min
- -167.77%
Net Margin (TTM)
Illumina (ILMN) at 19.72% keeps the most of each sales dollar — above its industry’s net margin range — and ICON (ICLR) at 5.26% also retains a top-quartile share.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
5.26%
- Max
- 18.05%
- ICLR
- 5.26%
- Q3
- 4.78%
- Median
- 0.00%
- Q1
- -4.14%
- Min
- -17.05%
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
19.72%
- ILMN
- 19.72%
- Max
- 18.05%
- Q3
- 4.78%
- Median
- 0.00%
- Q1
- -4.14%
- Min
- -17.05%
Operating Margin (TTM)
Illumina (ILMN) at 20.02% operates in the top operating margin quartile, ahead of ICON (ICLR) at 10.73%, which runs around its industry’s norm.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
10.73%
- Max
- 83.12%
- Q3
- 14.77%
- ICLR
- 10.73%
- Median
- 0.00%
- Q1
- -78.82%
- Min
- -207.40%
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
20.02%
- Max
- 83.12%
- ILMN
- 20.02%
- Q3
- 14.77%
- Median
- 0.00%
- Q1
- -78.82%
- Min
- -207.40%
Profitability Metrics
| Metric | ICLR | ILMN |
|---|---|---|
| ROE (TTM) | 4.70% | 32.39% |
| ROA (TTM) | 0.85% | 8.32% |
| Net Margin (TTM) | 5.26% | 19.72% |
| Operating Margin (TTM) | 10.73% | 20.02% |
| Gross Margin (TTM) | 23.44% | 67.68% |
Growth
Revenue Growth
ICON (ICLR) at 0.76% is around its peer norm for revenue growth, while Illumina (ILMN) at -0.66% drops into the bottom quartile, signaling weaker demand or pricing momentum.
EPS Growth
Only one side can be read here: ICON (ICLR) reports EPS growth of -71.56%, ranked against its industry; Illumina (ILMN) has no EPS growth figure this period.
Growth Metrics
| Metric | ICLR | ILMN |
|---|---|---|
| Revenue Growth (YoY) | 0.76% | -0.66% |
| Revenue Growth (3Y CAGR) | 2.15% | -1.78% |
| EPS Growth (YoY) | -71.56% | -- |
| EPS Growth (3Y CAGR) | -23.82% | -- |
Financial Strength
Current Ratio (MRQ)
Illumina (ILMN) at 2.63 keeps current ratio within its industry’s typical mid-range, while ICON (ICLR) at 1.32 runs in the tighter-liquidity quartile — a thinner cushion against current liabilities for ICLR.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
1.32
- Max
- 25.13
- Q3
- 12.13
- Median
- 5.52
- Q1
- 2.47
- ICLR
- 1.32
- Min
- 0.10
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
2.63
- Max
- 25.13
- Q3
- 12.13
- Median
- 5.52
- ILMN
- 2.63
- Q1
- 2.47
- Min
- 0.10
Debt / Equity (MRQ)
ICON (ICLR) at 0.38 carries an industry-typical debt-to-equity mix, while Illumina (ILMN) at 0.74 uses more debt funding than most peers.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
0.38
- Max
- 1.42
- Q3
- 0.65
- ICLR
- 0.38
- Median
- 0.15
- Q1
- 0.02
- Min
- 0.00
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
0.74
- Max
- 1.42
- ILMN
- 0.74
- Q3
- 0.65
- Median
- 0.15
- Q1
- 0.02
- Min
- 0.00
Financial Strength Metrics
| Metric | ICLR | ILMN |
|---|---|---|
| Current Ratio (MRQ) | 1.32 | 2.63 |
| Debt / Equity (MRQ) | 0.38 | 0.74 |
| Net Debt / EBITDA | 5.55 | 0.85 |
Dividends
Dividend Yield (TTM)
Neither ICON (ICLR) nor Illumina (ILMN) pays a dividend this period — they may reinvest, use buybacks, or simply not return cash through dividends.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
0.00%
- ICLR
- 0.00%
- Max
- 0.00%
- Q3
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
0.00%
- ILMN
- 0.00%
- Max
- 0.00%
- Q3
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
Dividend Payout Ratio (TTM)
Neither ICON (ICLR) nor Illumina (ILMN) pays a dividend this period — they may reinvest, use buybacks, or simply not return cash through dividends.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
0.00%
- ICLR
- 0.00%
- Max
- 0.00%
- Q3
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
0.00%
- ILMN
- 0.00%
- Max
- 0.00%
- Q3
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
Dividend Metrics
| Metric | ICLR | ILMN |
|---|---|---|
| Dividend Yield (TTM) | 0.00% | 0.00% |
| Dividend Payout Ratio (TTM) | 0.00% | 0.00% |
Valuation
P/E Ratio (TTM)
Illumina (ILMN) at 36.68 is near its industry’s usual P/E ratio, while ICON (ICLR) at 81.90 sits in the richer quartile — ICLR needs stronger growth or earnings quality to justify the premium.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
81.90
- Max
- 85.34
- ICLR
- 81.90
- Q3
- 43.46
- Median
- 26.69
- Q1
- 13.30
- Min
- 0.07
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
36.68
- Max
- 85.34
- Q3
- 43.46
- ILMN
- 36.68
- Median
- 26.69
- Q1
- 13.30
- Min
- 0.07
P/S Ratio (TTM)
ICON (ICLR) at 1.86 sits in the cheaper P/S ratio quartile while Illumina (ILMN) at 7.10 prices around its industry’s middle — ICLR costs less per dollar of sales, though read it alongside growth and margins.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
1.86
- Max
- 58.18
- Q3
- 25.77
- Median
- 7.30
- Q1
- 3.01
- ICLR
- 1.86
- Min
- 0.01
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
7.10
- Max
- 58.18
- Q3
- 25.77
- Median
- 7.30
- ILMN
- 7.10
- Q1
- 3.01
- Min
- 0.01
P/B Ratio (MRQ)
ICON (ICLR) at 1.68 looks cheap against book in the lower P/B ratio quartile, while Illumina (ILMN) at 10.30 carries a premium in the upper quartile — a clear price-to-book gap.
ICLR
Pharmaceuticals, Biotechnology & Life Sciences industry group
1.68
- Max
- 13.53
- Q3
- 6.54
- Median
- 3.25
- Q1
- 1.69
- ICLR
- 1.68
- Min
- -5.59
ILMN
Pharmaceuticals, Biotechnology & Life Sciences industry group
10.30
- Max
- 13.53
- ILMN
- 10.30
- Q3
- 6.54
- Median
- 3.25
- Q1
- 1.69
- Min
- -5.59
Valuation Metrics
| Metric | ICLR | ILMN |
|---|---|---|
| P/E Ratio (TTM) | 81.90 | 36.68 |
| P/S Ratio (TTM) | 1.86 | 7.10 |
| P/B Ratio (MRQ) | 1.68 | 10.30 |
| Free Cash Flow Yield (TTM) | 3.51% | 2.67% |