Atara Biotherapeutics, Inc. (ATRA) vs electroCore, Inc. (ECOR)
A side-by-side comparison of Atara Biotherapeutics, Inc. and electroCore, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.
ATRA
Atara Biotherapeutics, Inc.
$9.59HealthcareDelayed quote: Oct 6, 2026, 12:25 PM EDT
ECOR
electroCore, Inc.
$10.03HealthcareDelayed quote: Oct 6, 2026, 12:25 PM EDT
Total return — ATRA vs ECOR
growth of $100 · dividends reinvested · last 8yATRA -99.2% (-44.9%/yr)ECOR -96.6% (-34.5%/yr)ECOR compounded faster over this window
ATRA ECOR
ATRA vs ECOR: by the numbers
- •ECOR is the larger company ($90M vs $86M market cap).
- •Both run net losses; ECOR's is the smaller (-39.96% vs -269.42% net margin).
- •ATRA grew revenue faster over the past five years (56.10% vs 52.51% CAGR).
Metrics side by side
Valuation
| Metric | ATRA | ECOR |
|---|---|---|
| P/S ratio | 13.94 | 2.45 |
Profitability
| Metric | ATRA | ECOR |
|---|---|---|
| Gross margin | 82.44% | 87.06% |
| Operating margin | 29.69% | -37.64% |
| Net margin | -269.42% | -39.96% |
| ROIC | -100.35% | -217.73% |
Growth (annualized)
| Metric | ATRA | ECOR |
|---|---|---|
| Revenue CAGR (5Y) | 56.10% | 52.51% |
| Total return CAGR (5Y) | -53.60% | -8.10% |
Frequently asked
- Which has grown faster, ATRA or ECOR?
- Over the past five years, ATRA grew revenue faster — ATRA at a 56.10% CAGR versus ECOR at 52.51%.
- How have ATRA and ECOR total returns compared?
- Over the past 5 years, ATRA delivered -53.60% and ECOR delivered -8.10% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
Atara Biotherapeutics ROEelectroCore ROEAtara Biotherapeutics operating marginelectroCore operating marginAtara Biotherapeutics revenue growthelectroCore revenue growthAtara Biotherapeutics free cash flowelectroCore free cash flow
Atara Biotherapeutics & electroCore appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.