AMSC vs BLDR: Which Stock Is the Better Buy?
American Superconductor Corporation and Builders FirstSource, Inc. side by side — fundamentals from SEC filings, refreshed nightly. Sector: Industrials.
AI verdict — AMSC vs BLDR, read from the filings
The stronger business, the cheaper stock, and the risks — synthesised from both companies’ SEC filings, every figure computed not guessed. Not investment advice.
| American Superconductor Corporation (AMSC) | Builders FirstSource, Inc. (BLDR) | |
|---|---|---|
| Market cap | $1.8B | $7.1B |
| Revenue (latest FY) | $299.15M | $15.19B |
| Net income (latest FY) | $133.81M | $435.20M |
| Revenue growth (5y CAGR) | 28.0% | 12.2% |
| Net margin | 44.7% | 2.9% |
| Return on equity | 24.1% | 10.0% |
| P/E ratio | 12.4 | 72.2 |
| Dividend yield | — | — |
| Profitable years (of last 10) | 3 | 10 |
| Positive free cash flow | Yes | Yes |
Verify the comparison
Use the filing period and source shown by each tool before treating two figures as comparable.
See the full AMSC vs BLDR breakdown
Both companies across 19 years of income statement, balance sheet and cash flow — with ratios, health checks and Ask, the SEC-grounded research assistant. Free, no account needed.
Open AMSC's full financials → Open BLDR's full financials →More comparisons
Frequently asked questions
Which is bigger, AMSC or BLDR?
Builders FirstSource, Inc. is larger by market capitalization — $7.1B versus $1.8B.
Which grows faster, AMSC or BLDR?
Over the last five fiscal years, American Superconductor Corporation grew revenue faster — 28.0%/yr versus 12.2%/yr, computed from SEC-filed statements.
Where does this data come from?
All figures are computed from official SEC filings (10-K), refreshed nightly. This is a data comparison, not investment advice.