GWW vs PRLB
As of Sep 20, 2026, W.W. Grainger (GWW) scores 6.3/10 and Proto Labs (PRLB) 5.6/10 on AlphaStocks' five-model composite, so GWW scores higher. GWW trades 17% above its model fair value.
GWW
W.W. GRAINGER, INC.
6.3
Consider Buy
$1,266.90
PRLB
Proto Labs Inc
5.6
Consider Buy
$87.47
GWW vs PRLB: Which is the Better Investment?
W.W. GRAINGER, INC. (GWW) scores 6.3/10 while Proto Labs Inc (PRLB) scores 5.6/10 on AlphaStocks' composite model. W.W. GRAINGER, INC. has the higher composite rating of Consider Buy. On a P/E basis, W.W. GRAINGER, INC. trades at 35.6x, making it the more attractively priced of the two.
This comparison is algorithmically generated and is not financial advice.
| Metric | GWW | PRLB |
|---|---|---|
| Scores & Fundamentals | ||
| Composite Score | 6.3/10▲ | 5.6/10 |
| Rating | Consider Buy▲ | Consider Buy |
| Price | $1,266.90 | $87.47 |
| P/E Ratio | 35.6▲ | 99.8 |
| ROE | 46.8%▲ | 3.2% |
| Market Cap | $60B | $2B |
| Fair Value | $1,085.66 | — |
| Dividend Yield | 0.7% | — |
| Sector Rank | #32 of 265▲ | #65 of 265 |
| Model Verdicts | ||
| Piotroski | Strong▲ | Attractive |
| Buffett | Attractive▲ | Neutral |
| Graham | Neutral▲ | Caution |
| Lynch | Neutral▲ | Limited Data |
| Greenblatt | Neutral▲ | Limited Data |
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GWW vs PRLB: Which Stock Scores Higher?
W.W. GRAINGER, INC. (GWW) and Proto Labs Inc (PRLB) are both in the Industrials sector. GWW currently leads with a composite score of 6.3/10 (Consider Buy) compared to PRLB's 5.6/10 (Consider Buy).
The AlphaStocks composite score evaluates each stock across four dimensions: Quality (business strength measured by Piotroski F-Score and Buffett quality criteria), Value (discount to intrinsic worth using Graham, Lynch, and Greenblatt models), Momentum (6-month price trend), and Timing (a confirmation signal that requires both value and momentum to align). A higher composite score indicates stronger overall fundamentals combined with favorable market conditions.
This comparison uses the same scoring framework for both companies, ensuring an apples-to-apples evaluation. Scores are recalculated daily after market close using data from SEC filings and market prices. Read the full methodology to understand how each model contributes to the composite score.
Scores are algorithm-generated research tools, not investment recommendations. Past performance does not guarantee future results. Always do your own due diligence. Full disclaimer