L.B. Foster (FSTR) vs Terrestrial Energy (IMSR)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
L.B. Foster (FSTR) has outperformed Terrestrial Energy (IMSR) over the past year, gaining 36.6% versus a loss of 79.0%. Terrestrial Energy is the larger company by market cap ($386.7 million vs $373.7 million), about 1.0 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 | FSTR | IMSR |
|---|---|---|
| Share price | $35.52 | $3.65 |
| Market cap | $373.66M | $386.66M |
| 1-day change | -1.61% | -7.12% |
| YTD return | +31.80% | -40.26% |
| 1-year return | +36.56% | -79.01% |
| 5-year return | +123.96% | — |
| P/E ratio (TTM) | 33.83 | — |
| Forward P/E | 17.54 | — |
| EPS (TTM) | $1.05 | $-0.37 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| 52-week high | $45.81 | $31.50 |
| 52-week low | $23.81 | $3.60 |
| Distance from 52-week high | -22.46% | -88.41% |
| Analyst consensus | hold | strong_buy |
| Avg. price target upside | +23.87% | +219.73% |
| Average volume | 61.70K | 1.58M |
| Shares outstanding | 10.52M | 82.72M |
| Employees | 1,191 | 74 |
| Sector | Industrials | Industrials |
| Industry | Metal Fabrications | Metal Fabrications |
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
- FSTR has outperformed IMSR by 115.6 percentage points over the past year.
About L.B. Foster
FSTR stock →L.B. Foster Company provides engineered and manufactured products and services for building and supporting infrastructure in the United States, Canada, the United Kingdom, and internationally.
Industrials · Metal Fabrications · 1,191 employees
About Terrestrial Energy
IMSR stock →Terrestrial Energy Inc. engages in the development of small modular nuclear plants using its generation IV integral molten salt reactor (IMSR).
Industrials · Metal Fabrications · 74 employees
FSTR vs IMSR FAQ
Which is bigger, L.B. Foster or Terrestrial Energy?
Terrestrial Energy (IMSR) is larger, with a market capitalization of $386.66M compared with $373.66M for L.B. Foster (FSTR).
Which stock has performed better over the past year, FSTR or IMSR?
FSTR returned +36.56% over the past 12 months, compared with -79.01% for IMSR (price return, excluding dividends). Past performance does not predict future results.
Are L.B. Foster and Terrestrial Energy in the same industry?
Yes. Both are classified in the Metal Fabrications industry within the Industrials sector.