IOSP vs PPG
As of Sep 20, 2026, Innospec (IOSP) scores 6.3/10 and PPG Industries (PPG) 4.7/10 on AlphaStocks' five-model composite, so IOSP scores higher. IOSP trades 3% below its model fair value; PPG trades 27% below its model fair value.
IOSP
INNOSPEC INC.
6.3
Consider Buy
$93.12
PPG
PPG INDUSTRIES INC
4.7
Weak
$104.54
IOSP vs PPG: Which is the Better Investment?
INNOSPEC INC. (IOSP) scores 6.3/10 while PPG INDUSTRIES INC (PPG) scores 4.7/10 on AlphaStocks' composite model. INNOSPEC INC. has the higher composite rating of Consider Buy. On a P/E basis, PPG INDUSTRIES INC trades at 15.1x, making it the more attractively priced of the two. PPG INDUSTRIES INC trades further below its estimated fair value.
This comparison is algorithmically generated and is not financial advice.
| Metric | IOSP | PPG |
|---|---|---|
| Scores & Fundamentals | ||
| Composite Score | 6.3/10▲ | 4.7/10 |
| Rating | Consider Buy▲ | Weak |
| Price | $93.12 | $104.54 |
| P/E Ratio | 20.0 | 15.1▲ |
| ROE | 8.9% | 20.0%▲ |
| Market Cap | $2B | $23B |
| Fair Value | $96.11 | $143.84 |
| Dividend Yield | 2.1% | 2.4%▲ |
| Sector Rank | #8 of 78▲ | #38 of 78 |
| Model Verdicts | ||
| Piotroski | Attractive | Attractive |
| Buffett | Neutral | Attractive▲ |
| Graham | Neutral▲ | Caution |
| Lynch | Attractive▲ | Neutral |
| Greenblatt | Limited Data | Strong▲ |
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IOSP vs PPG: Which Stock Scores Higher?
INNOSPEC INC. (IOSP) and PPG INDUSTRIES INC (PPG) are both in the Materials sector. IOSP currently leads with a composite score of 6.3/10 (Consider Buy) compared to PPG's 4.7/10 (Weak).
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