908 Devices (MASS) vs Solid Power (SLDP)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
908 Devices (MASS) has outperformed Solid Power (SLDP) over the past year, gaining 32.2% versus a loss of 61.9%. Over five years, MASS leads with a -63.2% price change compared with -76.2% for SLDP. Solid Power is the larger company by market cap ($547.6 million vs $486.9 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 | MASS | SLDP |
|---|---|---|
| Share price | $11.78 | $2.40 |
| Market cap | $486.91M | $547.63M |
| 1-day change | -4.46% | +2.13% |
| YTD return | +124.38% | -43.53% |
| 1-year return | +32.21% | -61.90% |
| 5-year return | -63.23% | -76.17% |
| EPS (TTM) | $-0.94 | $-0.45 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $13.35 | $8.86 |
| 52-week low | $5.03 | $1.98 |
| Distance from 52-week high | -11.75% | -72.91% |
| Analyst consensus | none | none |
| Avg. price target upside | +13.58% | +186.67% |
| Average volume | 404.42K | 3.18M |
| Shares outstanding | 41.33M | 228.18M |
| Employees | 172 | 230 |
| Sector | Industrials | Miscellaneous |
| Industry | Industrial Machinery/Components | Industrial Machinery/Components |
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
- MASS has outperformed SLDP by 94.1 percentage points over the past year.
- The two companies sit in different sectors: 908 Devices in Industrials and Solid Power in Miscellaneous.
About 908 Devices
MASS stock →908 Devices Inc. provides purpose-built handheld mass spectrometry and fourier transform infrared (FTIR) devices for use in vital health and safety applications.
Industrials · Industrial Machinery/Components · 172 employees
About Solid Power
SLDP stock →Solid Power, Inc., a research and development-stage company, develops solid-state battery technologies for the electric vehicles markets in the United States. It engages in the development of sulfide-based solid electrolytes.
Miscellaneous · Industrial Machinery/Components · 230 employees
MASS vs SLDP FAQ
Which is bigger, 908 Devices or Solid Power?
Solid Power (SLDP) is larger, with a market capitalization of $547.63M compared with $486.91M for 908 Devices (MASS).
Which stock has performed better over the past year, MASS or SLDP?
MASS returned +32.21% over the past 12 months, compared with -61.90% for SLDP (price return, excluding dividends). Past performance does not predict future results.
Are 908 Devices and Solid Power in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Industrials sector.