ATRA vs BIIB: Which Stock is Better?
Side-by-side comparison of Atara Biotherapeutics Inc and Biogen Inc in 2026
ATRA
Atara Biotherapeutics Inc
$4.32
BIIB
Biogen Inc
$165.38
Key Metrics Comparison
| Metric | ATRA | BIIB | Winner |
|---|---|---|---|
| Market Cap | $32.73M | $24.26B | BIIB |
| P/E Ratio | 1.59 | 15.09 | ATRA |
| EPS (TTM) | $2.86 | $10.96 | BIIB |
| Revenue Growth | -0.9% | 0.0% | BIIB |
| Gross Margin | 46.8% | 76.6% | BIIB |
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Frequently Asked Questions
Is ATRA or BIIB a better investment?
Comparing ATRA and BIIB: Atara Biotherapeutics Inc has a market cap of $32.73M while Biogen Inc has $24.26B. Both companies have their strengths - use our detailed metrics comparison to make an informed decision.
What is the difference between ATRA and BIIB?
ATRA (Atara Biotherapeutics Inc) and BIIB (Biogen Inc) differ in valuation, growth rates, and profitability metrics. Our comparison shows which company leads in each category.
Which stock has better value: ATRA or BIIB?
Based on P/E ratios, ATRA trades at a lower multiple (1.6x vs 15.1x).
Which is growing faster: ATRA or BIIB?
BIIB has higher revenue growth at 0.0% vs -0.9% for ATRA.
Which company is more profitable: ATRA or BIIB?
Biogen Inc (BIIB) has higher gross margins at 76.6% compared to 46.8% for ATRA.
Which is the larger company: ATRA or BIIB?
Biogen Inc (BIIB) is larger with a market cap of $24.26B compared to $32.73M for ATRA.
Should I buy ATRA or BIIB in 2026?
Both ATRA and BIIB have investment merit. ATRA trades at $4.32 while BIIB trades at $165.38. Consider your investment goals, risk tolerance, and portfolio diversification before deciding. Our AI analysis tools can provide personalized insights.
What are the key differences between ATRA and BIIB stock?
Key differences: Market Cap ($32.73M vs $24.26B), P/E Ratio (1.6x vs 15.1x), Revenue Growth (-0.9% vs 0.0%), Gross Margin (46.8% vs 76.6%).