Innospec (IOSP) Stock Analysis & Winston Score
Innospec is a specialty chemicals company that makes additives and ingredients used in fuels, personal care products, and home care products. Its fuel additives help gasoline and diesel burn more cleanly and efficiently, while its performance chemicals go into shampoos, detergents, and cosmetics. The company sells to oil refiners, fuel distributors, and consumer goods manufacturers around the world. Innospec earns money by selling these specialty chemical products directly to industrial and commercial customers, with pricing tied to the value its additives provide rather than just raw material costs. The company operates globally, with significant business in North America, Europe, and Asia, and generates roughly $2 billion in annual revenue. Its competitive edge comes from proprietary formulations and long-standing customer relationships, which make switching suppliers difficult. The main risk is that its fuel additives business faces long-term pressure as electric vehicles reduce demand for traditional gasoline and diesel engines.
Winston Score: 41/100 — Average
Mixed quality — meaningful strengths and weaknesses.
- Quality: Mixed (11/30)
- Growth: Mixed (8/20)
- Cash Flow: Good (6/10)
- Stability: Good (5/10)
- Valuation: Mixed (4/10)
- Ownership: Mixed (4/15)
Key Facts
Price: $93.63
Market Cap: $2.3B
Sector: Basic Materials
Industry: Chemicals - Specialty
Exchange: NASDAQ

