Beta Bionics (BBNX) vs Tandem Diabetes Care (TNDM)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 7, 2026.
Summary
Tandem Diabetes Care (TNDM) has outperformed Beta Bionics (BBNX) over the past year, gaining 9.1% versus a loss of 18.4%. Tandem Diabetes Care is the larger company by market cap ($1.10 billion vs $975.3 million), about 1.1 times the size.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | BBNX | TNDM |
|---|---|---|
| Share price | $18.08 | $15.84 |
| Market cap | $975.35M | $1.10B |
| 1-day change | -2.95% | -1.98% |
| YTD return | -40.66% | -27.93% |
| 1-year return | -18.37% | +9.09% |
| 5-year return | — | -87.36% |
| Forward P/E | — | 99.65 |
| EPS (TTM) | $-1.64 | $-0.91 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $32.71 | $29.65 |
| 52-week low | $8.80 | $12.26 |
| Distance from 52-week high | -44.73% | -46.58% |
| Average volume | 1.29M | 1.98M |
| Shares outstanding | 53.95M | 69.58M |
| Sector | Health Care | Health Care |
| Industry | Medical/Dental Instruments | Medical/Dental Instruments |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- TNDM has outperformed BBNX by 27.5 percentage points over the past year.
BBNX vs TNDM FAQ
Which is bigger, Beta Bionics or Tandem Diabetes Care?
Tandem Diabetes Care (TNDM) is larger, with a market capitalization of $1.10B compared with $975.35M for Beta Bionics (BBNX).
Which stock has performed better over the past year, BBNX or TNDM?
TNDM returned +9.09% over the past 12 months, compared with -18.37% for BBNX (price return, excluding dividends). Past performance does not predict future results.
Are Beta Bionics and Tandem Diabetes Care in the same industry?
Yes. Both are classified in the Medical/Dental Instruments industry within the Health Care sector.