Aspen Aerogels (ASPN) vs Builders FirstSource (BLDR)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
Aspen Aerogels (ASPN) has outperformed Builders FirstSource (BLDR) over the past year, losing 32.3% versus a loss of 58.5%. Over five years, BLDR leads with a -5.7% price change compared with -88.6% for ASPN. Builders FirstSource is the larger company by market cap ($5.79 billion vs $467.2 million), about 12.4 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 | ASPN | BLDR |
|---|---|---|
| Share price | $5.63 | $53.81 |
| Market cap | $467.23M | $5.79B |
| 1-day change | -2.60% | +0.49% |
| YTD return | +98.94% | -47.70% |
| 1-year return | -32.25% | -58.46% |
| 5-year return | -88.63% | -5.71% |
| P/E ratio (TTM) | — | 58.49 |
| Forward P/E | — | 12.97 |
| EPS (TTM) | $-1.53 | $0.92 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | — | $15.19B |
| Revenue growth (YoY) | — | -7.38% |
| Net income (latest FY) | — | $435.20M |
| Gross margin | — | 30.39% |
| Operating margin | — | 5.18% |
| Net margin | — | 2.86% |
| 52-week high | $9.35 | $131.50 |
| 52-week low | $2.30 | $52.08 |
| Distance from 52-week high | -39.77% | -59.08% |
| Analyst consensus | buy | buy |
| Avg. price target upside | +37.66% | +43.93% |
| Average volume | 1.14M | 2.65M |
| Shares outstanding | 82.99M | 107.60M |
| Employees | 854 | 28,000 |
| Sector | Consumer Discretionary | Consumer Discretionary |
| Industry | RETAIL: Building Materials | RETAIL: Building Materials |
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
- Builders FirstSource is about 12.4 times larger than Aspen Aerogels by market value ($5.79B vs $467.23M).
- ASPN has outperformed BLDR by 26.2 percentage points over the past year.
About Aspen Aerogels
ASPN stock →Aspen Aerogels, Inc., an aerogel technology company, designs, develops, manufactures, and sells aerogel materials primarily for use in the energy industrial, sustainable insulation materials, and electric vehicle (EV) markets in the United States, Canada, Asia, Europe, and Latin America. It operates through two segments: Thermal Barrier and Energy Industrial.
Consumer Discretionary · RETAIL: Building Materials · 854 employees
About Builders FirstSource
BLDR stock →Builders FirstSource, Inc., together with its subsidiaries, provides building materials for professional builders in new residential construction and repair, and remodeling in the United States. It offers manufactured products, such as factory-built substitutes for job-site framing, wood floor and roof trusses, wall panels, and engineered wood; Ready-Frame, a whole house framing solution; manufactured and semi-custom modular homes, and built in a temperature-controlled facility under its Pine Grove Homes and Pleasant Valley Homes brand names; manufactured housing plans including ranch, community, and single-section homes; manufacturing, assembly, and distribution of windows; and the assembly and distribution of interior and exterior door units.
Consumer Discretionary · RETAIL: Building Materials · 28,000 employees
ASPN vs BLDR FAQ
Which is bigger, Aspen Aerogels or Builders FirstSource?
Builders FirstSource (BLDR) is larger, with a market capitalization of $5.79B compared with $467.23M for Aspen Aerogels (ASPN).
Which stock has performed better over the past year, ASPN or BLDR?
ASPN returned -32.25% over the past 12 months, compared with -58.46% for BLDR (price return, excluding dividends). Past performance does not predict future results.
Are Aspen Aerogels and Builders FirstSource in the same industry?
Yes. Both are classified in the RETAIL: Building Materials industry within the Consumer Discretionary sector.